Help troubleshooting unexpected results from arrays in for loop.
I have a noscript that is triggered every hour by cron which runs through an array of functions and then outputs the code of the functions run, and the results to email. This is run on multiple hosts in multiple environments. My issue is that **randomly** when creating the results email, it changes the function(test\_str). So for instance, when I expect to see "CONDA\_FOLDER variable found \*\[ ! -z ${CONDA\_FOLDER} \]; return $?\*true", I will see something like "CONDA\_FOLDER variable found \*\[ ! -z ${ENV\_AUX} \]; return $?;\*true", or even "CONDA\_FOLDER variable found\*a() {\[ ! -z ${ENV} \]}\*true". What's really throwing my off is that it only happens sometimes. I think it has to do with variable expansion(s). But, I am apparently stuck spinning my wheels, so any help is really appreciated.
\#host\_diagnostic.sh
#!/bin/bash
run_folder=${HOME}/host_diagnostic
# Import array of functions
. ${run_folder}/tests.sh
echo "---------------------------------"
echo " Start Testing "
echo "---------------------------------"
for i in "${!funcs[@]}"
do
echo ${descs[$i]}
${funcs[$i]}
results+=($?)
done
echo "---------------------------------"
echo " Output Test Results "
echo "---------------------------------"
for i in "${!funcs[@]}"
do
test_name=${descs[$i]}
if [ ${results[$i]} != 0 ]
then
bool="false"
else
bool="true"
fi
#Get rid of the first and last two lines of the function, its extraneous data
declare -f "${funcs[$i]}" > func
num_lines=$(wc -l < func)
end="$((${num_lines}-2))"
beg="$((${end}-2))"
test_str="$(head -n ${end} func | tail -n ${beg} | xargs)"
echo -e "${test_name}*${test_str}*${bool}\n" >> "${out_file_name}"
echo -e "${test_name}*${test_str}*${bool}\n"
rm func
done
cat "${out_file_name}" | mail -s "${HOST} Capability Report" ${email}
rm "${out_file_name}"
echo "---------------------------------"
echo " Finished "
echo "---------------------------------"
tests.sh
funcs=()
descs=()
#Variables
db="app_db"
srv="server1"
timeout=2
user=$(${WHOAMI})
email="nunya@bidness.com"
out_file_name=${run_folder}/${HOST}.out
> ${out_file_name}
results=()
if [ -z "${ENV_AUX}" ]
then
env="${ENV}"
else
env="${ENV}-${ENV_AUX}"
fi
if [ "${env}" == "int" ]
then
sr_api_url="https://api.int.com"
else
sr_api_url="https://api-${env}.com"
fi
ip=$(ifconfig | grep -m 1 "inet" | awk '{print $2}')
####################################################################################
# Tests
####################################################################################
descs+=("ENV variable found")
funcs+=("a")
a()
{
[ ! -z ${ENV} ]
return $?
}
descs+=("ENV_AUX variable found")
funcs+=("b")
b()
{
[ ! -z ${ENV_AUX} ]
return $?
}
descs+=("COMMON_FOLDER variable found")
funcs+=("c")
c()
{
[ ! -z ${COMMON_FOLDER} ]
return $?
}
descs+=("Common folder found")
funcs+=("d")
d()
{
[ -d ${COMMON_FOLDER} ]
return $?
}
descs+=("CONDA_FOLDER variable found")
funcs+=("e")
e()
{
[ ! -z ${CONDA_FOLDER} ]
return $?
}
descs+=("Conda folder found")
funcs+=("f")
f()
{
[ -d ${CONDA_FOLDER} ]
return $?
}
descs+=("Kerberos initialized for user")
funcs+=("g")
g()
{
klist | grep -q "${user}"
return $?
}
descs+=("Crontab has correct entries")
funcs+=("h")
h()
{
I have a noscript that is triggered every hour by cron which runs through an array of functions and then outputs the code of the functions run, and the results to email. This is run on multiple hosts in multiple environments. My issue is that **randomly** when creating the results email, it changes the function(test\_str). So for instance, when I expect to see "CONDA\_FOLDER variable found \*\[ ! -z ${CONDA\_FOLDER} \]; return $?\*true", I will see something like "CONDA\_FOLDER variable found \*\[ ! -z ${ENV\_AUX} \]; return $?;\*true", or even "CONDA\_FOLDER variable found\*a() {\[ ! -z ${ENV} \]}\*true". What's really throwing my off is that it only happens sometimes. I think it has to do with variable expansion(s). But, I am apparently stuck spinning my wheels, so any help is really appreciated.
\#host\_diagnostic.sh
#!/bin/bash
run_folder=${HOME}/host_diagnostic
# Import array of functions
. ${run_folder}/tests.sh
echo "---------------------------------"
echo " Start Testing "
echo "---------------------------------"
for i in "${!funcs[@]}"
do
echo ${descs[$i]}
${funcs[$i]}
results+=($?)
done
echo "---------------------------------"
echo " Output Test Results "
echo "---------------------------------"
for i in "${!funcs[@]}"
do
test_name=${descs[$i]}
if [ ${results[$i]} != 0 ]
then
bool="false"
else
bool="true"
fi
#Get rid of the first and last two lines of the function, its extraneous data
declare -f "${funcs[$i]}" > func
num_lines=$(wc -l < func)
end="$((${num_lines}-2))"
beg="$((${end}-2))"
test_str="$(head -n ${end} func | tail -n ${beg} | xargs)"
echo -e "${test_name}*${test_str}*${bool}\n" >> "${out_file_name}"
echo -e "${test_name}*${test_str}*${bool}\n"
rm func
done
cat "${out_file_name}" | mail -s "${HOST} Capability Report" ${email}
rm "${out_file_name}"
echo "---------------------------------"
echo " Finished "
echo "---------------------------------"
tests.sh
funcs=()
descs=()
#Variables
db="app_db"
srv="server1"
timeout=2
user=$(${WHOAMI})
email="nunya@bidness.com"
out_file_name=${run_folder}/${HOST}.out
> ${out_file_name}
results=()
if [ -z "${ENV_AUX}" ]
then
env="${ENV}"
else
env="${ENV}-${ENV_AUX}"
fi
if [ "${env}" == "int" ]
then
sr_api_url="https://api.int.com"
else
sr_api_url="https://api-${env}.com"
fi
ip=$(ifconfig | grep -m 1 "inet" | awk '{print $2}')
####################################################################################
# Tests
####################################################################################
descs+=("ENV variable found")
funcs+=("a")
a()
{
[ ! -z ${ENV} ]
return $?
}
descs+=("ENV_AUX variable found")
funcs+=("b")
b()
{
[ ! -z ${ENV_AUX} ]
return $?
}
descs+=("COMMON_FOLDER variable found")
funcs+=("c")
c()
{
[ ! -z ${COMMON_FOLDER} ]
return $?
}
descs+=("Common folder found")
funcs+=("d")
d()
{
[ -d ${COMMON_FOLDER} ]
return $?
}
descs+=("CONDA_FOLDER variable found")
funcs+=("e")
e()
{
[ ! -z ${CONDA_FOLDER} ]
return $?
}
descs+=("Conda folder found")
funcs+=("f")
f()
{
[ -d ${CONDA_FOLDER} ]
return $?
}
descs+=("Kerberos initialized for user")
funcs+=("g")
g()
{
klist | grep -q "${user}"
return $?
}
descs+=("Crontab has correct entries")
funcs+=("h")
h()
{
while IFS= read -r line
do
if ! crontab -l | fgrep -q "${line}" > /dev/null 2>&1
then
return 1
fi
done < "${HOME}/app/${HOST}.com/crontabs.file"
return 0
}
descs+=("Crontab has correct host_diagnostic entries")
funcs+=("i")
i()
{
while IFS= read -r line
do
if ! crontab -l | fgrep -q "${line}" > /dev/null 2>&1
then
return 1
fi
done < "${HOME}/host_diagnostic/crontab_host_diagnostic.file"
return 0
}
descs+=("SQL server connectivity")
funcs+=("j")
j()
{
echo "SELECT @@SERVERNAME, @@VERSION GO" > temp_sql_func
sqlcmd -S "${srv}" -d "${db}" -i temp_sql_func -W -E | grep -q "(1 rows affected)"
result=$?
rm temp_sql_func
return ${result}
}
descs+=("App VIP connectivity")
funcs+=("k")
k()
{
curl --max-time ${timeout} "${sr_api_url}"
return $?
}
descs+=('ScriptRunner running at host address')
funcs+=("l")
l()
{
curl --max-time ${timeout} "${ip}" | grep -q "Network Error"
[ $? == 1 ]
return $?
}
https://redd.it/zkfufw
@r_bash
do
if ! crontab -l | fgrep -q "${line}" > /dev/null 2>&1
then
return 1
fi
done < "${HOME}/app/${HOST}.com/crontabs.file"
return 0
}
descs+=("Crontab has correct host_diagnostic entries")
funcs+=("i")
i()
{
while IFS= read -r line
do
if ! crontab -l | fgrep -q "${line}" > /dev/null 2>&1
then
return 1
fi
done < "${HOME}/host_diagnostic/crontab_host_diagnostic.file"
return 0
}
descs+=("SQL server connectivity")
funcs+=("j")
j()
{
echo "SELECT @@SERVERNAME, @@VERSION GO" > temp_sql_func
sqlcmd -S "${srv}" -d "${db}" -i temp_sql_func -W -E | grep -q "(1 rows affected)"
result=$?
rm temp_sql_func
return ${result}
}
descs+=("App VIP connectivity")
funcs+=("k")
k()
{
curl --max-time ${timeout} "${sr_api_url}"
return $?
}
descs+=('ScriptRunner running at host address')
funcs+=("l")
l()
{
curl --max-time ${timeout} "${ip}" | grep -q "Network Error"
[ $? == 1 ]
return $?
}
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@r_bash
reddit
Help troubleshooting unexpected results from arrays in for loop.
I have a noscript that is triggered every hour by cron which runs through an array of functions and then outputs the code of the functions run, and...
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I need to do this but I don't know how. I can imagine this would be pretty easy to do with something like newsboat but I dont know the noscripting aspect. looking to do the same thing with gallery-dl as well but i can imagine if someone tells me how to do one i can figure out the other.
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Automatically downloading links from RSS feed with Yotube-DL?
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If you can't write awesome long noscripts, write a bunch of little ones. If you can't remember them all, you might like this one.
http://ix.io/4ixO
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http://ix.io/4ixO
https://redd.it/zlb7ao
@r_bash
noobish type having trouble creating an executable file from a bash noscript. most answers are people trying to make a file executable after its written. id like to know how to make one while its written.
I'm 100% I'm just being dumb and missing the obvious, as I often do, so any help would be greatly and humbly received. I know how to create a file with permissions, I understand perfectly chmod +x and all the numbers you can use e.g. 700, all permissions to me and no users or groups. I know that 111 101 100 would be rwx/r-x/r-- or 754 etc. but what I'm having trouble with is writing a bash noscript that creates another executable bash noscript. This would be super handy for making test blank noscripts without going through the rigmarole of changing the permissions every time, be it through terminal or properties. I'm sure there's a way, but everything I've tried has failed. ive tried-
chmod +x; touch /filepath/noscript.sh
touch /filepath/noscript.sh; chmod +x
touch /filepath/noscript.sh && chmod +x
touch /filepath/noscript.sh chmod +x
touch /filepath/noscript.sh | chmod +x
i can't think of another way to try.
​
​
(these are just the basic ideas I've tried with numbers too in all the other variations)
I'd also love someone to point out why these aren't working i know why the bottom two dont work
https://redd.it/zlfqr4
@r_bash
I'm 100% I'm just being dumb and missing the obvious, as I often do, so any help would be greatly and humbly received. I know how to create a file with permissions, I understand perfectly chmod +x and all the numbers you can use e.g. 700, all permissions to me and no users or groups. I know that 111 101 100 would be rwx/r-x/r-- or 754 etc. but what I'm having trouble with is writing a bash noscript that creates another executable bash noscript. This would be super handy for making test blank noscripts without going through the rigmarole of changing the permissions every time, be it through terminal or properties. I'm sure there's a way, but everything I've tried has failed. ive tried-
chmod +x; touch /filepath/noscript.sh
touch /filepath/noscript.sh; chmod +x
touch /filepath/noscript.sh && chmod +x
touch /filepath/noscript.sh chmod +x
touch /filepath/noscript.sh | chmod +x
i can't think of another way to try.
​
​
(these are just the basic ideas I've tried with numbers too in all the other variations)
I'd also love someone to point out why these aren't working i know why the bottom two dont work
https://redd.it/zlfqr4
@r_bash
reddit
noobish type having trouble creating an executable file from a...
I'm 100% I'm just being dumb and missing the obvious, as I often do, so any help would be greatly and humbly received. I know how to create a file...
Working but not really
Hello! I'm trying to make the code in the link wok: https://www.geeksforgeeks.org/shell-noscript-to-scrap-the-definition-of-a-word-from-wikipedia/
​
However, even changing the syntax error of "fi", I still get no output. Anyone have an idea how to fix this
https://redd.it/zleno7
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Hello! I'm trying to make the code in the link wok: https://www.geeksforgeeks.org/shell-noscript-to-scrap-the-definition-of-a-word-from-wikipedia/
​
However, even changing the syntax error of "fi", I still get no output. Anyone have an idea how to fix this
https://redd.it/zleno7
@r_bash
GeeksforGeeks
Shell Script to Scrap the Definition of a Word From Wikipedia - GeeksforGeeks
A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
My kubectl bash noscript not working
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I want to switch user to ansible when i exec into a k8s pod but my noscript is not working:
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Bash adding extra single quotes when running noscript
I'm making a noscript to convert mp4 to mkv while embedding subnoscripts but it doesn't work. If I am to put echo before mkverge on the last line and copy/paste the output into the terminal, it runs fine.
Here is a copy of the noscript:
#!/bin/bash
subfile=$(sed 's/mp4/eng.srt/' <<< "$1")
sdhsubfile=$(sed 's/mp4/eng.sdh.srt/' <<< "$1")
forcedsubfile=$(sed 's/mp4/eng.forced.srt/' <<< "$1")
outfile=$(sed 's/mp4/mkv/' <<< "$1")
if test -f "$subfile"; then
mainsrt='--track-name "0:English" --language "0:eng" '"$subfile"
fi
if test -f "$forcedsubfile"; then
forcedsrt='--track-name "0:English (Forced)" --language "0:eng" --forced-track "0:yes" --default-track "0:yes" '"$forcedsubfile"
fi
if test -f "$sdhsubfile"; then
sdhsrt='--track-name "0:English" --language "0:eng" "$subfile" --track-name "0:English (SDH)" --language "0:eng" '"$sdhsubfile"
fi
mkvmerge -o "$2/$outfile" "$1" "$mainsrt" "$forcedsrt" "$sdhsrt"
I added -x to the command so I could see the output and saw the following:
$ for i in *.mp4; do bash -x /noscripts/mp4_srt_to_mkv.sh "$i" "/home/username"; done
++ sed s/mp4/eng.srt/
+ subfile='Movie Name (2000) [Bluray-1080p-x265].eng.srt'
++ sed s/mp4/eng.sdh.srt/
+ sdhsubfile='Movie Name (2000) [Bluray-1080p-x265].eng.sdh.srt'
++ sed s/mp4/eng.forced.srt/
+ forcedsubfile='Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt'
++ sed s/mp4/mkv/
+ outfile='Movie Name (2000) [Bluray-1080p-x265].mkv'
+ test -f 'Movie Name (2000) [Bluray-1080p-x265].eng.srt'
+ mainsrt='--track-name "0:English" --language "0:eng" Movie Name (2000) [Bluray-1080p-x265].eng.srt'
+ test -f 'Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt'
+ forcedsrt='--track-name "0:English (Forced)" --language "0:eng" --forced-track "0:yes" --default-track "0:yes" Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt'
+ test -f 'Movie Name (2000) [Bluray-1080p-x265].eng.sdh.srt'
+ mkvmerge -o '/home/username/Movie Name (2000) [Bluray-1080p-x265].mkv' 'Movie Name (2000) [Bluray-1080p-x265].mp4' '--track-name "0:English" --language "0:eng" Movie Name (2000) [Bluray-1080p-x265].eng.srt' '--track-name "0:English (Forced)" --language "0:eng" --forced-track "0:yes" --default-track "0:yes" Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt' ''
mkvmerge v65.0.0 ('Too Much') 64-bit
Error: The file '--track-name "0:English" --language "0:eng" Movie Name (2000) [Bluray-1080p-x265].eng.srt' could not be opened for reading: open file error.
From looking at the output its adding a ' on the variables containing the subnoscript stuff which makes the command invalid. One example is before --track-name
The purpose of the "if test" lines is to test if the file exists - as not all files will have all subnoscript types and I wanted to make one noscript that works for all by having the noscript check if the file exists.
System info:
Ubuntu 22.04 Server
GNU bash, version 5.1.16(1)-release (x86\_64-pc-linux-gnu)
https://redd.it/zlkdo0
@r_bash
I'm making a noscript to convert mp4 to mkv while embedding subnoscripts but it doesn't work. If I am to put echo before mkverge on the last line and copy/paste the output into the terminal, it runs fine.
Here is a copy of the noscript:
#!/bin/bash
subfile=$(sed 's/mp4/eng.srt/' <<< "$1")
sdhsubfile=$(sed 's/mp4/eng.sdh.srt/' <<< "$1")
forcedsubfile=$(sed 's/mp4/eng.forced.srt/' <<< "$1")
outfile=$(sed 's/mp4/mkv/' <<< "$1")
if test -f "$subfile"; then
mainsrt='--track-name "0:English" --language "0:eng" '"$subfile"
fi
if test -f "$forcedsubfile"; then
forcedsrt='--track-name "0:English (Forced)" --language "0:eng" --forced-track "0:yes" --default-track "0:yes" '"$forcedsubfile"
fi
if test -f "$sdhsubfile"; then
sdhsrt='--track-name "0:English" --language "0:eng" "$subfile" --track-name "0:English (SDH)" --language "0:eng" '"$sdhsubfile"
fi
mkvmerge -o "$2/$outfile" "$1" "$mainsrt" "$forcedsrt" "$sdhsrt"
I added -x to the command so I could see the output and saw the following:
$ for i in *.mp4; do bash -x /noscripts/mp4_srt_to_mkv.sh "$i" "/home/username"; done
++ sed s/mp4/eng.srt/
+ subfile='Movie Name (2000) [Bluray-1080p-x265].eng.srt'
++ sed s/mp4/eng.sdh.srt/
+ sdhsubfile='Movie Name (2000) [Bluray-1080p-x265].eng.sdh.srt'
++ sed s/mp4/eng.forced.srt/
+ forcedsubfile='Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt'
++ sed s/mp4/mkv/
+ outfile='Movie Name (2000) [Bluray-1080p-x265].mkv'
+ test -f 'Movie Name (2000) [Bluray-1080p-x265].eng.srt'
+ mainsrt='--track-name "0:English" --language "0:eng" Movie Name (2000) [Bluray-1080p-x265].eng.srt'
+ test -f 'Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt'
+ forcedsrt='--track-name "0:English (Forced)" --language "0:eng" --forced-track "0:yes" --default-track "0:yes" Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt'
+ test -f 'Movie Name (2000) [Bluray-1080p-x265].eng.sdh.srt'
+ mkvmerge -o '/home/username/Movie Name (2000) [Bluray-1080p-x265].mkv' 'Movie Name (2000) [Bluray-1080p-x265].mp4' '--track-name "0:English" --language "0:eng" Movie Name (2000) [Bluray-1080p-x265].eng.srt' '--track-name "0:English (Forced)" --language "0:eng" --forced-track "0:yes" --default-track "0:yes" Movie Name (2000) [Bluray-1080p-x265].eng.forced.srt' ''
mkvmerge v65.0.0 ('Too Much') 64-bit
Error: The file '--track-name "0:English" --language "0:eng" Movie Name (2000) [Bluray-1080p-x265].eng.srt' could not be opened for reading: open file error.
From looking at the output its adding a ' on the variables containing the subnoscript stuff which makes the command invalid. One example is before --track-name
The purpose of the "if test" lines is to test if the file exists - as not all files will have all subnoscript types and I wanted to make one noscript that works for all by having the noscript check if the file exists.
System info:
Ubuntu 22.04 Server
GNU bash, version 5.1.16(1)-release (x86\_64-pc-linux-gnu)
https://redd.it/zlkdo0
@r_bash
reddit
Bash adding extra single quotes when running noscript
I'm making a noscript to convert mp4 to mkv while embedding subnoscripts but it doesn't work. If I am to put echo before mkverge on the last line and...
BASH shell programming practice problems?
Does anyone know any recourses with some? Ideally just using common commands.
https://redd.it/zlldpo
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Does anyone know any recourses with some? Ideally just using common commands.
https://redd.it/zlldpo
@r_bash
reddit
BASH shell programming practice problems?
Does anyone know any recourses with some? Ideally just using common commands.
Help me to convert this code to bash noscript
import sys
​
def main():
print(sys.argv)
print(len(sys.argv))
if len(sys.argv) != 2:
print("Usage: python3", sys.argv[0\], "<string>")
sys.exit(1)
else:
string = sys.argv[1\]
for i in string:
if i.isalpha():
print(i, ":", ord(i) - 96)
else:
print(i, ":", "-")
​
if __name__ == "__main__":
main()
https://redd.it/zll5b9
@r_bash
import sys
​
def main():
print(sys.argv)
print(len(sys.argv))
if len(sys.argv) != 2:
print("Usage: python3", sys.argv[0\], "<string>")
sys.exit(1)
else:
string = sys.argv[1\]
for i in string:
if i.isalpha():
print(i, ":", ord(i) - 96)
else:
print(i, ":", "-")
​
if __name__ == "__main__":
main()
https://redd.it/zll5b9
@r_bash
reddit
Help me to convert this code to bash noscript
import sys def main(): print(sys.argv) print(len(sys.argv)) if len(sys.argv) != 2: print("Usage: python3", sys.argv\[0\],...
question from a newbie. what's the best way to translate reply inputs?
Sorry about formatting, on mobile and its nearly 3 a.m. Right now I'm doing a project making a calculator in bash and I have everything done but one task. I need to translate the input from the operation select menu so it's always lower case. I feel so stupid but I can't figure it out and it's been hours.
This is my first interaction with bash noscripting and I gotten If then down but I'm struggling with loops.
Thank you, if you need my noscript I'll post in a few hours once I get some sleep.
https://redd.it/zll2qu
@r_bash
Sorry about formatting, on mobile and its nearly 3 a.m. Right now I'm doing a project making a calculator in bash and I have everything done but one task. I need to translate the input from the operation select menu so it's always lower case. I feel so stupid but I can't figure it out and it's been hours.
This is my first interaction with bash noscripting and I gotten If then down but I'm struggling with loops.
Thank you, if you need my noscript I'll post in a few hours once I get some sleep.
https://redd.it/zll2qu
@r_bash
reddit
question from a newbie. what's the best way to translate reply inputs?
Sorry about formatting, on mobile and its nearly 3 a.m. Right now I'm doing a project making a calculator in bash and I have everything done but...
How can I make an input function?
I was wondering if it's possible to make a simple function like this, where you can input a string while calling the function
stringLenghtCalculator($inputString){
"$(($(echo $inputString | wc -m)-1))"
}
https://redd.it/zlod9f
@r_bash
I was wondering if it's possible to make a simple function like this, where you can input a string while calling the function
stringLenghtCalculator(hello) and the function calculates the length of the input stringLenghtCalculator($inputString){
"$(($(echo $inputString | wc -m)-1))"
}
https://redd.it/zlod9f
@r_bash
reddit
How can I make an input function?
I was wondering if it's possible to make a simple function like this, where you can input a string while calling the function...
getent passwd {$min..$max} not working, {1000..60000} does
Hi! I'm trying to use getent passwd {$min..$max} in a noscript.
If I echo $min or echo $max before the getent command, it's 1000 and 60000 respectively.
getent passwd {1000..60000} gives me all info I need. Why doesn't variables work?
https://redd.it/zlo2wp
@r_bash
Hi! I'm trying to use getent passwd {$min..$max} in a noscript.
If I echo $min or echo $max before the getent command, it's 1000 and 60000 respectively.
getent passwd {1000..60000} gives me all info I need. Why doesn't variables work?
https://redd.it/zlo2wp
@r_bash
reddit
getent passwd {$min..$max} not working, {1000..60000} does
Hi! I'm trying to use getent passwd {$min..$max} in a noscript. If I echo $min or echo $max before the getent command, it's 1000 and 60000...
cp -rv command without verbosing only the dir name?
Is it possible to print only the dir names (and probably the subdirs) only when using cp with -v?
If the answer is awk, I'd kindly ask the exact solution.
https://redd.it/zlq7vp
@r_bash
Is it possible to print only the dir names (and probably the subdirs) only when using cp with -v?
If the answer is awk, I'd kindly ask the exact solution.
https://redd.it/zlq7vp
@r_bash
reddit
cp -rv command without verbosing only the dir name?
Is it possible to print only the dir names (and probably the subdirs) only when using cp with -v? If the answer is awk, I'd kindly ask the...
Need help with flag names
I have homework where I have to make a noscript that counts words, characters, lines, paragraphs and so on withot using things like wc. I have this done. The thing is, my teacher insists that when running the noscript in terminal, it has to be called like this:
./noscript.sh -file test.txt -number 10
I have all this done and it works, except I have no idea how to make it so that the flag names can be strings and not single characters, without using double dashes --.
Right now I have it like this:
./noscript.sh -f test.txt -n 10
And it all works, but how can I change my getopts (or is there a different way?), so that the flag names can be long?
Also, here is a snippet of my getopts part:
while getopts ":f:n:" opt; do
case $opt in
f) file=$OPTARG
​
Ive also tried doing it like ":file:number:" but it doesnt seem to work
https://redd.it/zltbom
@r_bash
I have homework where I have to make a noscript that counts words, characters, lines, paragraphs and so on withot using things like wc. I have this done. The thing is, my teacher insists that when running the noscript in terminal, it has to be called like this:
./noscript.sh -file test.txt -number 10
I have all this done and it works, except I have no idea how to make it so that the flag names can be strings and not single characters, without using double dashes --.
Right now I have it like this:
./noscript.sh -f test.txt -n 10
And it all works, but how can I change my getopts (or is there a different way?), so that the flag names can be long?
Also, here is a snippet of my getopts part:
while getopts ":f:n:" opt; do
case $opt in
f) file=$OPTARG
​
Ive also tried doing it like ":file:number:" but it doesnt seem to work
https://redd.it/zltbom
@r_bash
reddit
Need help with flag names
I have homework where I have to make a noscript that counts words, characters, lines, paragraphs and so on withot using things like wc. I have this...
Unexpected `Warning: unknown mime-type for ...` from awk
Why I obtain this unexpected error? I don't understand what `awk` wants to be done? Here is my code:
#!/usr/bin/env bash
# Just leading spaces are remvoed and placeholders with square brackets.
# Entries are separated via empty blank lines.
# Anything else is being unthouched.
get_values_and_options() {
declare config_path="$1"
awk 'BEGIN {
values = "\\s+#\\s+Default\\s+=\\s+"
option_or_values = "^(\\w" "|" values ")"
}
$0 ~ option_or_values {
result = gensub(/\[[A-Za-z0-9 ]+\]/, "", "g", gensub(/\s+=.*/, "", "1", gensub(values, "", "1")))
if (result !~ /--/) # If it's not a line with option values then it's the last entry line with just option name after which a blank line should be.
result = gensub(/$/, "\n\n", "1", result)
print result
}' "$config_path"
}
declare config_path="../assets/default_config.ini"
declare values_and_options="$(get_values_and_options "$config_path")"
print "$values_and_options"
And here is a sample from input file:
[config-meta]
#---------------------------------------------------------------
# If 'True', program starts with all config settings immediately
# If 'False', program starts with default settings immediately, ignoring any config settings
# If 'Ask', program Asks to use config settings at start. And if you have multiple configs, will ask which to use
# NOTE: This setting only applies to the primary config file ("SpamPurgeConfig.ini"), not any other configs you make
# Default = Ask -- Possible Values: True | False | Ask
use_this_config = Ask
# A short denoscription to show for this config file when asking which config file to choose
# > Examples: "Scan last 3 videos with auto smart", "Scan last video for [some phrase]"
# This ONLY matters if you have multiple config files (such as "SpamPurgeConfig2.ini", "SpamPurgeConfig3.ini", etc)
# Possible Values: Anything
this_config_denoscription = My Custom Config
I wanna just delimit my items and make output to be smth like this (default values are always put before `--`):
Ask -- Possible Values: True | False | Ask
use_this_config = Ask
Anything
this_config_denoscription
https://redd.it/zlkylm
@r_bash
Why I obtain this unexpected error? I don't understand what `awk` wants to be done? Here is my code:
#!/usr/bin/env bash
# Just leading spaces are remvoed and placeholders with square brackets.
# Entries are separated via empty blank lines.
# Anything else is being unthouched.
get_values_and_options() {
declare config_path="$1"
awk 'BEGIN {
values = "\\s+#\\s+Default\\s+=\\s+"
option_or_values = "^(\\w" "|" values ")"
}
$0 ~ option_or_values {
result = gensub(/\[[A-Za-z0-9 ]+\]/, "", "g", gensub(/\s+=.*/, "", "1", gensub(values, "", "1")))
if (result !~ /--/) # If it's not a line with option values then it's the last entry line with just option name after which a blank line should be.
result = gensub(/$/, "\n\n", "1", result)
print result
}' "$config_path"
}
declare config_path="../assets/default_config.ini"
declare values_and_options="$(get_values_and_options "$config_path")"
print "$values_and_options"
And here is a sample from input file:
[config-meta]
#---------------------------------------------------------------
# If 'True', program starts with all config settings immediately
# If 'False', program starts with default settings immediately, ignoring any config settings
# If 'Ask', program Asks to use config settings at start. And if you have multiple configs, will ask which to use
# NOTE: This setting only applies to the primary config file ("SpamPurgeConfig.ini"), not any other configs you make
# Default = Ask -- Possible Values: True | False | Ask
use_this_config = Ask
# A short denoscription to show for this config file when asking which config file to choose
# > Examples: "Scan last 3 videos with auto smart", "Scan last video for [some phrase]"
# This ONLY matters if you have multiple config files (such as "SpamPurgeConfig2.ini", "SpamPurgeConfig3.ini", etc)
# Possible Values: Anything
this_config_denoscription = My Custom Config
I wanna just delimit my items and make output to be smth like this (default values are always put before `--`):
Ask -- Possible Values: True | False | Ask
use_this_config = Ask
Anything
this_config_denoscription
https://redd.it/zlkylm
@r_bash
reddit
Unexpected `Warning: unknown mime-type for ...` from awk
Why I obtain this unexpected error? I don't understand what `awk` wants to be done? Here is my code: #!/usr/bin/env bash # Just leading...
sshto
Hi, I've just added another handy command to sshto!
Mount - it allows you to mount some folder from remote server to some local folder.
And then use this remote folder as local! Sshfs must be installed in order to use this feature.
Also Unmount and Home commands where added to cooperate with Mount.
Have fun!)
https://redd.it/zlxlcx
@r_bash
Hi, I've just added another handy command to sshto!
Mount - it allows you to mount some folder from remote server to some local folder.
And then use this remote folder as local! Sshfs must be installed in order to use this feature.
Also Unmount and Home commands where added to cooperate with Mount.
Have fun!)
https://redd.it/zlxlcx
@r_bash
GitHub
GitHub - vaniacer/sshto: Small bash noscript to manage your ssh connections. It builds menu (via dialog) from your ~/.ssh/config.…
Small bash noscript to manage your ssh connections. It builds menu (via dialog) from your ~/.ssh/config. It can not only connect but also to run commands, copy files, tunnel ports. - vaniacer/sshto
aliases for multi-word commands like
I manage my Github issues from the command line using
Is there a way to set an alias so that I can type
Is this possible?
https://redd.it/zm2x48
@r_bash
gh issue list or specific command options?I manage my Github issues from the command line using
gh issue on a regular basis, and since there are a lot of them I find myself running gh issue list -L 100 quite regularly (-L 100 increases the number of issues listed to 100).Is there a way to set an alias so that I can type
gh issue list and have it automatically add the -L 100 but not affect, for instance, gh issue create or gh issue comment? I'm sure I could set alias list="list -L 100", but I can easily see that adversely affecting other commands so I'd rather not. I'm also aware that I could simply alias this specific command to something like ghil but I'm curious and I think learning how to set aliases with multiple words could be useful for a lot of things outside of this one specific use-case.Is this possible?
https://redd.it/zm2x48
@r_bash
reddit
aliases for multi-word commands like `gh issue list` or specific...
I manage my Github issues from the command line using `gh issue` on a regular basis, and since there are a lot of them I find myself running `gh...
How to start a process in the background from a bash noscript but then kill that process when I Ctrl+C see the noscript?
I have this noscript:
#!/bin/bash
sudo nginx -t
if ! ss -l | grep 10002 > /dev/null
then
sudo nginx
else
sudo nginx -s reload
fi
python loop.py > /dev/null &
python app.py
This noscript is supposed to test the nginx config file, then check if nginx is running, if its not running, start it, if it is running reload it, then run a python noscript which is an infinite loop, then load a flask app.
If i don't add the '&' on the loop the flask app will never load because the loop will never end. However, when I press Ctrl+C on this noscript I want both loop.py and app.py to end process.
But right now only app.py ends and loop.py keeps running (I assume because it spawned a child process). How can I make it so loop.py ends when I Ctrl+C?
https://redd.it/zm42ox
@r_bash
I have this noscript:
#!/bin/bash
sudo nginx -t
if ! ss -l | grep 10002 > /dev/null
then
sudo nginx
else
sudo nginx -s reload
fi
python loop.py > /dev/null &
python app.py
This noscript is supposed to test the nginx config file, then check if nginx is running, if its not running, start it, if it is running reload it, then run a python noscript which is an infinite loop, then load a flask app.
If i don't add the '&' on the loop the flask app will never load because the loop will never end. However, when I press Ctrl+C on this noscript I want both loop.py and app.py to end process.
But right now only app.py ends and loop.py keeps running (I assume because it spawned a child process). How can I make it so loop.py ends when I Ctrl+C?
https://redd.it/zm42ox
@r_bash
found a noscript in a file i was sent and I'm wondering what exactly it does.
edited to fix format.
#!/bin/bash
filename=$1
sed -n '1~4s/^@/>/p;2~4p' $filename | awk '{print $1}' > $filename.fasta
https://redd.it/zm6c6b
@r_bash
edited to fix format.
#!/bin/bash
filename=$1
sed -n '1~4s/^@/>/p;2~4p' $filename | awk '{print $1}' > $filename.fasta
https://redd.it/zm6c6b
@r_bash
reddit
found a noscript in a file i was sent and I'm wondering what exactly...
edited to fix format. #!/bin/bash filename=$1 sed -n '1~4s/^@/>/p;2~4p' $filename | awk '{print $1}' > $filename.fasta
"type -P" vs "type -p"
As per
-P force a PATH search for each NAME, even if it is an alias,
builtin, or function, and returns the name of the disk file
that would be executed
-p returns either the name of the disk file that would be executed,
or nothing if
Could someone please provide an example when there is a difference in
https://redd.it/zm7dke
@r_bash
As per
help type output-P force a PATH search for each NAME, even if it is an alias,
builtin, or function, and returns the name of the disk file
that would be executed
-p returns either the name of the disk file that would be executed,
or nothing if
type -t NAME' would not return file'Could someone please provide an example when there is a difference in
-P vs -p output?https://redd.it/zm7dke
@r_bash
reddit
"type -P" vs "type -p"
As per `help type` output -P force a PATH search for each NAME, even if it is an alias, builtin, or function, and returns the...