BASH is the GNU Bourne Again SHell, the successor to the classic Unix Bourne sh (shell). It's the default shell for various GNU systems.

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shell script to display environment variables

This shell script writes my environment variables and if there is an argument, the shell script will grep for the argument in the environment variables. ...
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Script to download sequentially named files, rename them, and delete smaller files

I've written a little script to download sequentially named files, rename them, and delete files smaller than an certain number of kilobytes. I came up with this but I'm not too happy. Any advice for ...
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Isolate URLs from other text around it and put each on own line (with sed)

I have a small shell script that uses sed to take an input file of URLs with hand-written notes around them and strips the notes and puts each URL on its own line. ...
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Git tag release build files and reset to commit without

This is part of a library that wants to release builded files (eg dist/*) when published to npm and bower. However, I don't want to commit those builded files for ...
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Flac Converter And Organizer

I really like flac files, but my phone can't store them all. So I made a script for converting them, that slowly became a full featured flac organizer. I'd like to improve my programming skills, as ...
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82 views

Baby-sitting bash script using DVD drive

This is the script I wrote to make an automated POC baby-sitter in 5 lines. I first found this on a GIF or meme site and thought of making a POC script that does the same. ...
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Parsing Gaussian09 frequency calculations, reformatting depending on desired output

Quite similar to my earlier review this script parses a frequency calculation and reformats the found values to either fit into one row for easier importing into a spreadsheet software or a formatted ...
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751 views

Bash script to simplify Git deployment workflow

In my company I follow the following workflow. (I think it can be defined a kind of 'Continuous Integration'.) Workflow: We have 3 fixed branches (staging/<...
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65 views

A little advanced mouse clicker in Bash for Linux

My today's goal was to create a little advanced mouse clicker in Bash for Linux powered by xdotool. This clicker implements 15 pixel random range in which it clicks ...
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Resolve dependencies from output of PBS queueing system

I have written a script, that reformats the output of qstat -f1 of the PBS queueing system. Unfortunately this project is by far too big to post here complete, also ...
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672 views

JSON Parsing in Bash

I have a json file which needs to be restructured. The following is the code. ...
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35 views

Parsing Gaussian 09 output for energy statement on one or more files and reformat it to a table

I am a computational chemist working with the program Gaussian 09. After I manually check the output(s) I want to create a summary for easier processing of the obtained values. Also avoid opening all ...
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Bash script to perform LUHN check

The following Bash script takes a single parameter (the PAN) and exits with 1 if the PAN does not satisfy a LUHN check. ...
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Install ruby using rbenv in bash script

I want to write an automated bash script for installing ruby and rails using rbenv. But I am getting issue of session reload in terminal. My bash script:- ...
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Crawling SPOJ through cURL and C++

I am trying to write industry standard code. https://www.quora.com/How-do-I-follow-a-user-on-Spoj-for-solving-problems-Refer-Details Someone gave me this A2A. And I wrote this code for it ...
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89 views

MacPorts - Quick Install Script

I wrote this script to automatically install the relevant version of MacPorts. It's supposed to be used in a fashion similar to the official installer for HomeBrew. FYI: The real reason that I ...
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49 views

Write the running time to file without capturing the program's output

I want to run an application and write (append) its processing time into a file. Also, I want to see the stdout and stderr output on the shell, but don't want to write it in a file. After running the ...
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47 views

Sorting a file with three-line blocks by the second word of the first line in each block

I have a text file with the following three line pattern with blank lines in between. My script sorts alphabetically by each person's last name and preserves formatting. I would love to see other ...
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75 views

Testing a shell command interpretor

I've written tests that use Bash for testing a custom shell. I think the tests work but I'm sure you know better because this is my first test I write this way. ...
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28 views

Bash script that displays and kills selected processes

This is my first Bash script and I decided to use what I've learned so far to help manage stray processes while I develop in my *nix environs. I've tested the script extensively and it seems to work ...
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55 views

Yet another bash backup script, using rsync --link-dest

I’ve written this bash backup script. It uses the --link-dest option of rsync; that way, the user have access to the backed data ...
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Bash script for xrandr modification

Simply, I call the script (brightness.sh) and pass a three character value as an argument. I've got commands to strip individual numbers for math processes, and then the final commands to apply the ...
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28 views

Open github via commandline

I'm learning bash and my goal here is from any repository on my computer to be able to type github and it will open the remote ...
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31 views

Read group of keywords from file, modify value, store new group to variable

I would like to use the following routine in my submission script for GAMESS calculations. I am not entirely sure if this is the optimum way to go. This function would need one of the messaging ...
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36 views

Checking if input file exists, assign output file destination, prevent overwriting any files

I would like to use the following routines in my submission script for GAMESS calculations. Before I do, I would like to get some input if I can improve it somehow. The three messaging routines (<...
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462 views

SSH passing your Public key to all the users on remote host

I've grown tired of typing my password back and forth to all the hosts you connect to, i want to be able to jump to every single user on all the hosts with ease. So i've made this script with a ...
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54 views

Bash script to determine a distro, update, upgrade and install the apps I use

This is my first bash script. I am trying to learn scripting and needed an idea. This is the first idea I came up with. When I used to distro hop I had to reinstall everything. This helped me out once ...
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Bashscript - Find and run main.py file (part of vim-Python IDE)

I try to get into Python and thought I build together my own IDE. Most of it consists of different addons for vim and changes in the vimrc (which of course I simply copied of google), but I also ...
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Setting up a development environment - 2

This is the new code after following the advice from here: Setting up a development environment General feedback is requested. Also, should I be using $() or <...
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332 views

Setting up a development environment

I'm looking for feedback on improving the structure of this code. Also, I could not find the command line executable for Chrome. General feedback is also requested. ...
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35 views

Using arrays to read in file, append it with parsed program output and overwrite original

Yesterday a friend of mine asked on U&L: How to optimize 'grep'-and-save? I will summarise shortly. The output of the torque pbs queueing system tool qstat ...
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22 views

Wordpress downloader and unpacker

Wrote a small bash-script today that downloads the latest swedish wordpress archive , extracts it and writes wp-config.php Would appreciate any feedback that could improve it / prettify it. The ...
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54 views

Watch log dir for new file, automatically tail to slack

We have a process that outputs to log files in the format /var/log/xxx/YYYY_MM_DD.log - the file name is chosen programmatically and is not rotated using logrotate ...
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52 views

Simple load testing script in bash

Here's the code ...
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34 views

Bash script menu

Any comments on this? Like there is a way to get rid of all the if-statements or a better way to # check model and build (which ...
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26 views

Making time lapse screenshots using Bash

My experience in bash is... well, around the Bourne shell on AIX. I wrote a semi-complex script in Bash, and I feel that it could be improved in 100 different ways. The Github project is here: https:/...
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Resolving the path to a Bash script

I wrote a function to resolve the full path to the current Bash script, and I'm wondering if it's SOLID: ...
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39 views

Search and merge split-archive backup parts

I wrote some code which searches parts of a split-archive backup (it's an Android backup, I used flashfire to backup) and rejoins them. As you can easily see, I've achieved this by ...
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32 views

Locating the Bash history file for a user

This looks quite verbose to me, using the command substitution and echo: ...
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Start the Python interpreter with an import statement

When I'm writing Python, I wanna be able to pull up an interpreter quickly, and import what I need easily. Previously, this involved: ...
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81 views

A Dockerfile for Composer (a dependency manager for PHP)

I recently built a Docker image for Composer. I'd love to get a review of the image, the Bash based wrapper script, its recommended use, and the repository structure. Here's the Dockerfile for the <...
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82 views

Un*x terminal history wiper

Using various answers from Stack Overflow and Ask Ubuntu, I've hacked together this simple C program that wipes terminal history. It works but I'm relatively new to C so I'm not sure if everything is ...
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32 views

Generates a randomized locally-administered unicast MAC address

This is the first time I've attempted writing something in bash, and would appreciate any feedback or criticism to make it better. ...
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1answer
31 views

Bash script to create directories and files with a numbered prefix

I wrote a pretty simple bash script. It takes a directory with subdirectories with incremental prefixes in their names (01test, 02test, 03test), creates a new ...
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Bash “Rotating” MySQL backup

I'm quite a novice in shell scripting so far, but i'm learning and getting quite comfortable in writing shell scripts, but i have a lot to learn. The snippet at the bottom of the page creates backups ...
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Shell agnostic startup flow - env, profile, rc, login

The goal of these files is to have some common behavior between Bash and Zsh when starting them. As is known, when Bash starts as a login shell it will source the first found of the following in your ...
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35 views

Bash script to open or close gnome-terminal with a single keybinding

I wanted to bind a single hot key to open and close gnome-terminal in a way similar to terminal emulators such as tilda or guake. I use Ubuntu, and have configured this script to be executed when I ...
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48 views

Nagios plugin webdav check 2

Original post: nagios plugin webdav check According to the good advice I have received I've made some modifications to the code: ...
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70 views

nagios plugin webdav check

I have written a small plugin for nagios to check a WebDAV server. It is supposed to connect using a username and password and upload & delete a test file This is my code: ...