${tasks[i]}"

done

echo ""

# Read user input and set corresponding variables

read -p "Enter task flags (default=all): " input_tasks

input_tasks=${input_tasks:-"all"}

# Check for invalid task flags

for flag in $(echo $input_tasks | tr "," " "); do

if [[ ! "${flags[@]}" =~ "${flag}" && $flag != "all" ]]; then

echo "Error: Invalid task flag: $flag"

exit 1

fi

done

# Set variables based on user input
errthang=false
system_update=false
clean_temp_files=false
clamav_scan=false
rkhunter_scan=false
remove_logs=false
check_file_system=false
clean_apt_cache=false
clear_memory_cache=false
optimize_disk_usage=false
reboot_if_needed=false

IFS=',' read -ra task_flags <<< "$input_tasks"
for flag in "${task_flags[@]}"; do
case "$flag" in
all) errthang=true;;
-s|all) system_update=true;;
-c|all) clean_temp_files=true;;
-v|all) clamav_scan=true;;
-r|all) rkhunter_scan=true;;
-l|all) remove_logs=true;;
-f|all) check_file_system=true;;
-a|all) clean_apt_cache=true;;
-m|all) clear_memory_cache=true;;
-o|all) optimize_disk_usage=true;;
-b|all) reboot_if_needed=true;;
t ) continue ;;
q ) break 2 ;;
*) echo "Error: Invalid task flag: $flag"; exit 1;;
esac
done

#Verbose
# set -x
# Execute selected tasks
echo "Executing selected tasks..."

if [ "$errthang" = true ]; then
echo "Updating system packages..."
system_update_func
wait
clean_temp_files_func
wait
clamav_scan_func
wait
rkhunter_scan_func
wait
remove_logs_func
wait
check_file_system_func
wait
clean_apt_cache_func
wait
clear_memory_cache_func
wait
optimize_disk_usage_func
fi

if [ "$system_update" = true ]; then
echo "Updating system packages..."
system_update_func
fi

if [ "$clean_temp_files" = true ]; then
echo "Cleaning up temporary files..."
clean_temp_files_func
fi

if [ "$clamav_scan" = true ]; then
echo "Checking for ClamAV malware..."
clamav_scan_func
fi

if [ "$rkhunter_scan" = true ]; then
echo "Checking for rkhunter malware..."
rkhunter_scan_func
fi
if [ "$remove_logs" = true ]; then
echo "Removing old log files..."
remove_logs_func
fi

if [ "$check_file_system" = true ]; then
echo "Checking and repairing file system errors..."
check_file_system_func
fi

if [ "$clean_apt_cache" = true ]; then
echo "Cleaning up apt cache..."
clean_apt_cache_func
fi

if [ "$clear_memory_cache" = true ]; then
echo "Clearing system memory cache..."
clear_memory_cache_func
fi

if [ "$optimize_disk_usage" = true ]; then
echo "Optimizing disk usage..."
optimize_disk_usage_func
fi
# set +x
clear
done
echo "Done."

https://redd.it/11g142q
@r_bash

I've implemented working parser in Bash + Sed from the ground and wrote unit tests for it

It allows to extract command name, denoscription, tags, tokens for code examples and their denoscriptions.

Here is my implementation. It works straightforward: parser validates page layout and checks more details user requests for. For instance if I wanna get some tag from page (to get link to the official tool documentation) parser will check not just layout, but also whether written tags are right.

And that's how it looks like right now:


https://preview.redd.it/pgngxz09jbla1.png?width=1587&format=png&auto=webp&v=enabled&s=e3e8160086d637375dd55fd8c85408c60fddf93f

In other words I've proved myself that it's possible to right some cool stuff in Bash and Sed. ;)

https://redd.it/11g1b5q
@r_bash

zentest, small simple solution for testing code.

ZENTEST
-------

### Overview

A minimal test setup, that is taken out of a larger context.
There are so many ways to perform tests, I needed one I
could use standalone, in a loop like so:

for f in fileA FileB fileC ; do
.git/test-runner.sh $f > logs/$f-$(date +%s).log
done

I can also invoke the tests from my build Makefile in a
rule like so:

fileA:
shellcheck -xe $@
.git-test-runner.sh $@

Or, I can call it up from my .git precommit hook, if it fits
the bill, file name wise, that a file that is under testing,
is about to be committed.

### Organization

Everything is initiated/executed with the project root, as
the current working directory $PWD.

Every source file, that is to be tested, has its own little
makefile with the different tests. The make in use is
GNUmake, so that the .ONESHELL directive works, so that you
can yourself decide if the test passes or fails, in fact,
every rule in the makefile will work as a little shell
noscript. (Otherwise every commandline in a makefile is executed in its own shell.)

In project root, we have a workdir directory, which holds
temporary project files, and a tests directory, that
contains all the small makefiles, and what else of files,
that are needed to perform the tests in the makefiles.


The test-runner.sh is a very simple noscript, that only
figures out the correct makefile to run from the test/
directory. It bails if it doesn't find a suitable makefile,
I plan to make a copy of my template-makefile then, and open
it in $EDITOR.

### What is left out here:

The error messages, I like to get the errors into a format
that I can load into a quick fix list in Vim, so when my
tests fails, I deliver errors in the unix error format.
That is outside of the scope here, but easy to implement!

### "Source code".


#!/bin/bash
# Preliminaries: output is redirected up front to $TESTERRORS
# Context: We are executed from the root of our project, i.e. right
# inside the directory that contains the project.
# We have a "tests" folder within the project directory, that contains
# makefiles, one for every file that is to be tested.
# each makefile is named as the same as the file in question,
# which means that every file of your project, that is to be tested
# needs to have a unique stem name.

PNAME="${0##/}"
if [[ $# -ne 1 ]] ; then
echo -e "$PNAME : I need a file name to test\nTerminating..."
exit 2
fi

if [[ "${1}" != "${1/.//}" ]] ; then
makefname="$( basename "${1}" "${1#.}")"mk
else
makefname="${1}".mk
fi


if [ ! -r tests/"$makefname" ] ; then
echo -e "$PNAME : tests/$makefname doesn't exist.\nCan't test ${1}!\
\nTerminating..."
exit 2
else
make -f tests/"$makefname"
exit $?
fi

The makefiles is equally simple, below is a simple template.
makefile. Here is a small superb make
tutorial

.ONESHELL:
all: ./workdir/step3 clean

./workdir/step1:
@noscript1 ./workdir/step1
touch ./workdir/step1

./workdir/step2: ./workdir/step1
@noscript1 ./workdir/step2
touch ./workdir/step2
exit 1

./workdir/step3: ./workdir/step2
@noscript1 ./workdir/step3
touch ./workdir/step3


clean:
rm ./workdir/step1 ./workdir/step2 ./workdir/step3

Last updated:23-03-02 15:06

https://redd.it/11g3mnv
@r_bash

My cat entered the following into git bash and it put my editor into some sort've other commandline

p[-0.4kjmn.cf yy;bknmg#f'g 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9Function Key 9OAFunction Key 9i

Typing in p[ seems to trigger it but I don't know what it is, any ideas?

https://redd.it/11g7uma
@r_bash

Diff 2 Files Without Knowing Exact Names

I want to diff two files, but I do not know the exact names.

The use case is, we are using DevOps pipelines that download a pre and post configuration file.

I would know what the files start with but the ending will be a date time string that I would not know.

Looking for help with a noscript that finds the files and does a diff of the later version vs the earlier version.

Names would be something like this:

name20230302T142605
name20230302T142803

Any thoughts on how to do this?

https://redd.it/11gauho
@r_bash

Download Toddle for FREE: Toddler is a bash noscript that extracts all the TODO comments across your codebase into a markdown file.
https://github.com/Madjarx/toddler

https://redd.it/11ga9gb
@r_bash

Worked a lot on this noscript lately

I would like to share a noscript that I think can be quite useful for people who play games in DOSBox, or want to extract the OST from games (works with console games too that use CD audio). All that's required is to pass the CUE file as an argument to the noscript.

&#x200B;

https://github.com/linux4ever07/noscripts/blob/main/cuebin\_extract.sh

&#x200B;

I linked it before as part of a collective post about a bunch of my noscripts. Since I made that post, I've spent a lot of time refining everything so my noscripts can reach their 'final form'. The goal is to have them in such a state that I could die tomorrow and they will keep working indefinitely, and be easy to understand and maintain should people need to.

&#x200B;

This specific noscript seems to be the last of the bunch to get its 'final makeover'. I might still update it, but I don't think I will change it a whole lot more. The one thing that comes to mind is to add support for additional audio formats, like Opus, MP3 etc. The reason I didn't add it myself yet is because I'm not interested. I always just use FLAC, and Ogg Vorbis is there as a lossy option. DOSBox supports Opus though, so maybe someone will be interested in forking the noscript and adding that, I don't know.

&#x200B;

Listing the top comments of the noscript below, to elaborate on how it works:

&#x200B;

\# This noscript is meant to take an input BIN/CUE file, extract the raw

\# track(s) (data / audio) in whatever format the user has specified

\# through noscript arguments. The noscript simply separates all the tracks

\# of BIN/CUE files.

&#x200B;

\# Available audio formats are:

\# * cdr (native CD audio)

\# * ogg (Ogg Vorbis)

\# * flac (Free Lossless Audio Codec)

&#x200B;

\# If no format is specified as an argument, the noscript will extract all

\# 3 formats, and create CUE sheets for all 3 formats as well.

&#x200B;

\# The original purpose of the noscript is to take DOS games that have CD

\# audio, and getting rid of the need to store the uncompressed audio.

\# Ogg Vorbis is a lossy codec, so the files are much smaller and near

\# the same quality. In the case of FLAC, it's a lossless format so the

\# quality is identical to native CD audio. The only difference is FLAC

\# is losslessly compressed so the files are slightly smaller. The

\# generated CUE sheets can be used with DOSBox, using the 'IMGMOUNT'

\# command.

&#x200B;

\# https://www.dosbox.com/wiki/IMGMOUNT

&#x200B;

\# Another use case for this noscript is to simply extract the OST from

\# games, to listen to.

&#x200B;

\# The noscript will work with all kinds of games, including PS1 and Sega

\# Saturn games. All that's required is that the disc image is in the

\# BIN/CUE format. Though, I'm not sure if there's emulators that can

\# handle FLAC or Ogg Vorbis tracks. The point would mainly be to listen

\# to the music.

&#x200B;

\# Yet another use case is to just split a BIN/CUE into its separate

\# tracks, with the '-cdr' argument, without encoding the audio.

&#x200B;

\# It's possible to do a byteswap on the audio tracks (to switch the

\# endianness / byte order), through the optional '-byteswap' argument.

\# This is needed in some cases, or audio tracks will be white noise if

\# the endianness is wrong. So, it's easy to tell whether or not the byte

\# order is correct.

&#x200B;

\# ISO files produced by 'bchunk' are discarded, and data tracks are

\# instead copied directly from the source BIN file, calculating the

\# length of tracks based on information gathered from the CUE sheet.

&#x200B;

\# Since the 'copy_track' function is now able to correctly copy any

\# track from the source BIN file, it's possible to make this noscript not

\# depend on 'bchunk' anymore. The default mode is to use 'bchunk', but

\# if the user passes the '-sox' argument to the noscript, then 'sox' is

\# used instead. The end result is identical either way. It's just nice

\# to have a way out, in

case a certain program is not available.

&#x200B;

\# The advantage of using the '-sox' argument, is that the noscript is then

\# able to process CUE sheets that contain multiple FILE commands (list

\# multiple BIN files). As an example, Redump will use 1 BIN file /

\# track, so that can be processed by the noscript directly in this case,

\# without having to merge the BIN/CUE first.

&#x200B;

\# It may also be possible to use 'ffmpeg' in a similar way to how 'sox'

\# is used in the 'cdr2wav' function. But I did not manage to get it

\# working. The command would probably be something like this:

&#x200B;

\# ffmpeg -i in.cdr -ar 44.1k -ac 2 -f pcm_s16le out.wav

&#x200B;

&#x200B;

https://preview.redd.it/325rj5fpzdla1.png?width=2560&format=png&auto=webp&v=enabled&s=c46a6f02733b6b18d1077925dbd99477cd134985

https://redd.it/11gd8rf
@r_bash

Cannot pipe the output to a file

Hey guys. I am writing a noscript to provision a VM on Oracle Cloud. This Bash noscript is running on Ubuntu. The command themselves are working fine. I want to log the output to a file. I tried but nothing is being logged.

The output for this Oracle command takes about 5 minutes to come through. My guess is that the "tee" command is not waiting around for the output and it times out. How can I make it wait so it will log the output?

#!/bin/bash

echo -e "#######################################################################" >> /home/ubuntu/OCIprovision.log

date >> /home/ubuntu/OCIprovision.log

oci compute instance launch \

--availability-domain $A \

--compartment-id $C \

--shape VM.Standard.A1.Flex \

--subnet-id $S \

--assign-private-dns-record true \

--assign-public-ip true \

--availability-config file:///home/ubuntu/availabilityConfig.json \

--display-name NEW-autoprovisioned \

--image-id $I \

--instance-options file:///home/ubuntu/instanceOptions.json \

--shape-config file:///home/ubuntu/shapeConfig.json \

--ssh-authorized-keys-file /home/ubuntu/.ssh/id_rsa.pub \

--| tee -a /home/ubuntu/OCIprovision.log

https://redd.it/11guy2f
@r_bash

Command to grab piece of text from somewhere

I just need some random small text. Maybe there are sites that store text pieces for such purposes? Why do I need it? Well, I wanna write a program to demonstrate how Linux commands work in practice by showing some grabbed input text on the left and transformed output on the right side with visual highlighted differences via smth like ydiff.

https://redd.it/11hdeyp
@r_bash

Sshto update

Hi, sshto is getting better and better each time)
I've added hosts selection from groups and added 'CONTENTS' button in commands section to fast jump to other groups. Now you can merge groups with ease!

Enjoy!)

https://redd.it/11hetsr
@r_bash

Tip to translate random languages with ChatGPT and tell which language is used in a text box

https://www.reddit.com/r/ChatGPT/comments/11hk3cc/tipuseakeyboardcomboshortcuttotranslatea/

https://redd.it/11hkens
@r_bash

Need some help with bash to combine two lists

I have two lists (List-1 and List-2) as shown below.

How would I combine them two by corresponding volume id (see my desired output)

&#x200B;

echo $LIST1
/dev/nvme0n1:vol020dae210a89ec02f
/dev/nvme1n1:vol04a2ddeb86823787a
/dev/nvme2n1:vol0e87fd7996e425e4c
/dev/nvme3n1:vol00835963bde10321b

echo $LIST2
/dev/sda1:vol020dae210a89ec02f
/dev/sdb:vol0e87fd7996e425e4c
/dev/sdf:vol04a2ddeb86823787a
/dev/sdg:vol00835963bde10321b

&#x200B;

Desired output:

echo $OUTPUT
/dev/nvme0n1:/dev/sda1
/dev/nvme1n1:/dev/sdf
/dev/nvme2n1:/dev/sdb
/dev/nvme3n1:/dev/sdg

Appreciate your help ! Cheers !

https://redd.it/11hq0my
@r_bash

Odd behavior with reading from stdin and then trying to read user input in a while loop

I successfully made a bash noscript that would make a centered list of files (images) then let you select an image interactively and it would display whatever image you would currently have selected, in the terminal using an image viewer.

It works well if I assign the array from within the bash noscript with

names=(fd . /home/sweet/Pictures/icons --extension jpg)
and then I would read the user input in a while loop that would let me move through the array in increments to select different files/images using 'j' or 'k'.

the problem Im having is that I want to be able to use any command and pipe it into my bash noscript but no matter which method I try, it blocks the user keys/input from being read. I've spent 5 hours trying every suggestion online that I could find and reading man pages but to no avail. Most of them would "work" to assign the piped in files to the array but then everytime I hit j or k it would just show up on the screen literally as an ascii character instead of catching the case statement and triggering the function to move up/down through the array, display the image and return to drawing the screen.

I tried simple things like names=$(cat) or

names=()
while read -r line; do
 names+=( "$line" )
done < "${1:-/dev/stdin}"

and "readarray -t names"

I also tried to take stdin, write it to a file and then read that file into the array. Below is the full code with some things commented out that I tried

Im trying to achieve a fzf like behavior where I can pipe images into the noscript, display them and then pick on option. Any suggestions as to how I can prevent read/stdin from blocking the ability to read user input would be amazing.

\#!/bin/bash

# move selection up
up() {
  if [ ${current} -gt 0 ]; then
current=$((current-1))
  fi
  tui
}

# move selection down
down () {
if [ ${current} -lt $((length-1)) ]; then
current=$((current+1))
fi
tui
}


# kitty
o() {
  kitty +kitten icat --scale-up --place 50x50@0x0 "${names[$current]}"
}

get_term_size() {
  read -r LINES COLUMNS < <(stty size)
}

indent() {
  for i in $(seq 1 $1); do printf ' '; done
}

# note this didnt work
# read from stdin by default unless there is an argument in pos 1
# names=()
# while read -r line; do
  # assign each item from stdin to the array
  # names+=( "$line" )
# done < "${1:-/dev/stdin}"

# This works by itself
# names=($(fd . /home/sweet/Pictures/anime-icons --extension jpg))

# length=${#names[@]}

tui() {
clear
for (( n=0; n < ${#names[*]}; n++ )); do
# n is the iterator, get word length and subtract by column size to center
wordlength=${#names[n]}
move_to=$(( $(( COLUMNS / 2)) - $(( wordlength / 2 )) ))
indent $move_to
if [ ${n} -eq ${current} ]; then
for i in $(seq 1 $wordlength); do printf '─'; done
printf '\n'
indent $move\_to
printf "\\033\[1m${names\[n\]}\\033\[0m\\n"
indent $move\_to
for i in $(seq $wordlength); do printf '─'; done
printf '\n'
else
printf "${names\[n\]}\\n"
fi
done
}

# quit program

q() {
  quit='true'
  clear
  printf '\e[?25h'

}

&#x200B;

ctrl_c() {
  clear
  printf '\e[?25h'
  exit
}

# get terminal size
get_term_size

# init variable for list index
current=0

# keep track of quit
quit='false'

# STDIN
names=$(cat)

length=${#names\[@\]}

# hide the cursor
printf '\e[?25l'

# init input list/array
tui

# main event loop
while [ ${quit} != 'true' ]; do

  # trap ctrl+c to unhide cursor and reset terminal
  trap ctrl_c INT

  # take input from user
  read -sn 1 key

  case "$key" in
'k') up;o;;
'j') down;o;;
'o') o;;
'q') q;;
  esac

done

https://redd.it/11imlvv
@r_bash

I wrote a wallpaper getter setter in pure BASH v4.2+
https://github.com/wick3dr0se/wgs

https://redd.it/11inv00
@r_bash

Help! Urgent!

Hello everyone
I am trying to solve some bash noscript questions and need some help urgently as I have a deadline to meet in a few hours. Please dm if anyone can help me solve those questions. Would love to interact and learn

https://redd.it/11jfcfx
@r_bash

Out of curiosity, what is your best noscript you can showcase?



https://redd.it/11jhm6s
@r_bash

Getting file path from an android device

I'm looking for a way to get the internal android path of an SD card from a device and assign it to a variable in bash.

For instance, when I browse my device connected to my pc, the entire working path is something like:

/run/user/1000/gvfs/mtp:host=motorola_Z38948/SanDisk SD card/Tunes

When browsing the same directory from the phone, it appears as

/storage/9028-e980-z73899-987/Tunes

As far as I can figure out (which probably isn't very far), there doesn't seem to be a way to list the latter path from the pc. So far I've been manually typing it into my noscript, but that's a terribly inefficient way to go about things, especially since the number (some sort of UID?) changes whenever the device is power cycled or the media is removed.

Any suggestions on how to retrieve the internal path for such detachable media via bash?

https://redd.it/11jjl5d
@r_bash

Do you use bash at/for your work?

New to this, just curious as to what some of you use it for besides personal projects.

https://redd.it/11jtqfu
@r_bash

bash issue with ip command

hi guys, i am trying to write a bash noscript that i will assign later to an alias, to output easier ip eth0 and eth0 ip (for openvpn)

the code looks good to me and work when both eth0 and tun0 are enabled but dont when tun0 is disabled

it output something i didnt ask for and should just change the eth0 output to "disabled" instead of being blank

ideas and help would be nice, thanks yall

https://preview.redd.it/ut9x13eed3ma1.png?width=821&format=png&auto=webp&v=enabled&s=9273f918bb620f17010feaf7b72130ae140cd4b5

https://preview.redd.it/dkmyu4ofd3ma1.png?width=457&format=png&auto=webp&v=enabled&s=992ef304e62f96e904be2aca73714b1d455eafbd

https://redd.it/11junh7
@r_bash

Where can I learn to use NNN as a noob?

What's a good tutorial on nnn for Mac. I'm a terminal noob, and installed the program. It's really fast and I love it for zipping around my folders and doing basic tasks. I've not managed to get previews however. I've spent quite some hours now with ChatGTP to get help but I mostly get inadequate, conflicting, or plainly wrong instructions. The learning curve is steep here as I'm looking at the instructions for installing preview-tui, and I can't quite get my head around it.

This is probably not the right forum for asking, but perhaps someone on here can point me in the right direction? Where can I get help with this stuff? Any advice would be appreciated.

Thanks.

https://redd.it/11kauu4
@r_bash