Questions tagged [bash]
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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Semaphore implementation by file locking in a bash script
This implementation is inspired by the POSIX functions sem_wait() and sem_post(). It tries to get rid of busy loops in the code ...
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Laravel Docker-Compose
I've created a repo for some Docker containers that work together with docker-compose to make a very easy and quick installation for Laravel including nginx, mariadb, and redis. Laravel is known for ...
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Shell script to backup local files to public cloud
This is a script that I've written for personal use, and to educate myself. The script is a bit comment heavy to help future me remember all the details & design choices made at the time of ...
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Bash script for user backups with BorgBackup
I use BorgBackup to handle backups for my personal computer.
The following is a bash script that creates backups of my system to various different targets.
I have little experience with bash and hope ...
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Copying multiple S3 files in parallel using aws shell command
Any improvements to this welcome, I have got it working and I'm happy with it. I'm not really all that proficient with bash shell scripts though.
Problem:
AWS can copy multiple files pretty much as ...
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Clear-net browsing with Lynx over Tor
This project is designed to enable clear-net browsing over the Tor network with the Lynx web-browser. Currently everything seems to be functioning as intended, however, it would be most appreciated if ...
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tar-backup V1.01 - backup script for Linux (full and differential backups)
The backup script itself. Make it executable and place it somewhere in your path:
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appleseed command line widget (CLW)
─── appleseed on GitHub
appleseed v1.0.0 is a command line widget (CLW), I designed for macOS
and iTerm2. Its a flexible platform for process automation and added
eye candy. It utilizes ...
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WSL LAMP stack script
The following code is aimed to establish a WSL based LAMP environment.
This is instead XAMPP or WAMPP based LAMP environment which doesn't allow Bash.
The script includes a cat heredocument called "...
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Bash script to symlink configuration files from git repo into home directory
My goals are to:
Do it automatically (without adding a line to my script every time I add or change the location of a config file)
The files in the git repo folder should not be hidden, but the ...
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Selective Time Machine backup deletion
Time Machine is a useful backup service for Mac, but deleting multiple backups is cumbersome. This script allows mass deletion of unwanted backups while allowing specified "important" backups to ...
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SLOC Counter Script Optimization
I'm a HPC guy so I'm all about "make it work, then make it fast." I have a little bash script which gets a Physical Source Lines Of Code (PSLOC) and Logical SLOC (currently just of Java code, but it ...
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Bash script for pull-mode backups via restic's rest-server
I wrote the following Bash scripts to make pull-mode backups with restic, a backup solution written in Golang, similar to Borg Backup. The main use case for this script is pulling backups into a ...
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Bash script for rebalancing weighted round robin
I have written a tool that is used to rebalance weights in a weighted round robin in AWS. I am quite happy with it whereas I would welcome feedback from any Bash programmers.
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Bash script to mirror XWindow to remote SSH host
The source code within this question aims to provide a short-cut for mirroring a local XWindow (or session) to a remote host via SSH port forwarding, such as:
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Systemctl services start and UFW ports allow script
I made a script to start something akin to a "session" in which I start services and open tcp and udp ports in the firewall in order to work with, for example, a full stack project, and stop and close ...
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Using SSH.NET to interact with a Bash shell
I'm trying to interact with a bash shell on a router to automate some CLI commands using SSH.NET. I'm not sure if the approach I'm taking is the best one and would like to get some recommendations on ...
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Merging multiple awk commands while retaining functionality
Turned in a project a few days ago, and I needed a way to filter and format values off a file. I decided to go for a bash script since it seemed like a good option, and I came up with the following:
<...
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NRPE script for monitoring filesystems usage
Next script returns NRPE friendly output. It checks percentage usage of all local filesystems.
Desired output if everything is ok:
OK | /=56;;;; /boot=20;;;; /opt=40;;;; /var=60;;;; (and ...
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Follow-up: Script to create symlinks for dotfiles in a Git repository
This is a follow up to my previous question on Code Review. I did try to implement most of feedback provided by thiagoalessio.
This is what my updated code looks like:
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Bash webapp duplicator
I've written the following Bash script used to duplicate a webapp/website you have (say, a Wordpress website) locally on your server environment, for testing purposes, indicating after 2 days if you ...
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Compare timestamps of svgs versus exported pngs and export via Inkscape
This script goes through all svg files in an assets folder and compares them to the exported layers (one level above). If the svg timestamp is newer, it will automatically export the svg using ...
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Bash manual page selection menu (version 2)
This is update to a previously asked question Bash manual page selection menu. This script generates a menu for the user to select which manual page he/she would like to read.
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Daemonizing shell scripts - MqSH
This is an mqtt driven, interactive, and asynchronous remote shell daemon written in bash. I call it "MqSH" or simply "mq". It works with bash, the busybox ash shell, and perhaps other Bourne-like ...
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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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Implementing a data extraction pipeline with Bash
I wrote the following scripts to extract data from BigQuery and InfluxDB using the bigquery cli and the influx cli. The code works as expected. I included all files for completeness, but I'm primarily ...
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Fast git change sets with git wrapping scripts
After having a good experience with virtualenvwrapper built on top of the venv, I thought maybe it could be benefitial to have similar shortcuts for standard activities with git which could be time ...
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Reliable separation of Steam users
I wrote this bash script to try to make sure save games don't get mixed between different steam users using the same Ubuntu account.
It uses inotify to try to figure out when a user changes and a soft ...
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The Blacklist v2
This script gathers domains listed from sources in this JSON file and compiles them into one text file. Text files that have a similar key under the whitelists ...
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Ansible to automate dev environment setup
This is a follow-up to Bash script to automate dev environment setup.
In that question I'd thrown together a (sloppy) shell script to automatically setup my development environment. One of the answers ...
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Pulling host list from ldapserach command from netgroup
As i am learning bash, i have written a small code which is nothing but a simple ldapsearch query which lists all the...
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Upgrade script for MediaWiki website with one external addon (wave 2)
I have created the following Bash script to somewhat automate the upgrade of any MediaWiki website which contains one extension (ContactPage).
I have tested the essential parts of the script several ...
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What is a better practice in bash scripts to test if string is empty: [[ -z ${value//[0-9]/""} ]] or ! [[ ${value//[0-9]/""} ]]?
I test in a bash script if a variable value contains digits only.
There are two options, both give the valid results:
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Bash wrapper for connmanctl with autocompletion
So the idea came from the fact that
connmanctl only completes filenames/directories when used non-interactively,
whereas when used interactively (executing ...
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bash script to delete files resurrected by Adobe InDesign bug
After a March update, Adobe Indesign will resurrect removed directories it was responsible for creating in the first place, but not any files except for one file called "AdobeFnt.lst". So where once ...
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Qutebrowser Searchengine Script
Qutebrowser uses search engines similar to DuckDuckGo's Bangs to facilitate searching.
The config.py file for the browser contains a search engine Python dictionary....
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Vim swap file sweep and recovery
This is the draft contents of a function intended to be run after a system crash in order to quickly review all of the recent vim swap files. They will be loaded up into and displayed in a vim ...
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Outputting a standalone shell script from arguments
I am solving an exercise. Essentially, it's a shell script that takes in file and/or directory arguments and outputs another (standalone) shell script that outputs these files, including any directory ...
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Bash script to scp specific, most-recent files from remote server
I'm writing a helper script that I wish to be able to share with my co-workers. We all work using macOS Mojave, but all have their own shell configurations. For example, I actually use ZSH and bash 5....
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Auto re-connecting to a VPN on OS X and pointing Squid accordingly
We need to tunnel certain applications over a VPN at work. Ideally we would use a dedicated firewall/network appliance for this but the only permanent infrastructure we have are Mac Pro's running ...
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Bash bitcoin blockchain explorer
I wrote a little bash script that displays the transaction info in json:
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Bulk File Rename; Improved Safety and Performance
A function that funnels all filenames into a file and opens that file in vim. The user then changes the names, saves, and quits. Finally the function renames the files in the folder with the new names ...
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BASH script to obfuscate android/meterpreter payloads
I have written a little script that does a pretty good job of obfuscating android/meterpreter payloads. It will generate payloads or used supplied msf payloads while also injecting a custom icon. The ...
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Code to backup the history file in Linux
How is the logic, efficiency and can it be improved?
This is a snippet from my .bashrc file; I just wrote it and I've tested it and it almost works. This was the ...
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S3 Tools in Bash
This is a follow on to a previous question:
Part 1: Signature
All the code I am submitting here is available in github
The reason to write these tools is so I can prototype and quickly verify ...
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Read file real time with while loop and trigger action on change
I want to read a file real time with a while loop that is being fed by the stdout of a process (inotifywait). The output could ...
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Copy recently modified files from one directory to another
I am new to bash scripting. Could you please give a review of this code that copies recently modified files from one directory to another in bash? The main commands are in my ...
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Chip-8 Emulator in Zsh
I've spent the last few weeks writing a Chip-8 emulator in zsh. It doesn't run in bash but the syntax is nearly identical. I have it on a GitHub repo here: https://github.com/hcorion/chipzsh a ...
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Log all Google Chrome browser activity
This script documents every website visited and writes the text content of each webpage to its own individual file. It seems to work as intended. Is there anything I could do to improve it?
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Is this docker entrypoint bash script for passing parameters to the containerized app 'good'?
Source code located here
I am trying to pass extra parameters from a container to the contained application. The following bash script is working to pass extra variables, but I'm not sure that it's ...
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