BASH is the Bourne Again SHell, the successor to the classic Unix sh (shell). It's the official shell of GNU.

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How to get exit code of a parallel process launched by xargs? [migrated]

I'd made a script for launching parallel rsync process: ...
4
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1answer
35 views

Encrypt and backup folder to email daily, when online

I have a backup script which should backup a folder and send it to email. This should be done once a day. As this is on my laptop which is not online 24/7 I need to check that I am online and can send ...
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1answer
77 views
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1answer
36 views

Is my makefile correct? [closed]

I am new to using makefile. I have got three files in a folder- cat.c, hello.c and bash. I am not sure if this is the right way to do it. ...
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2answers
84 views

Bash script to clear files not matching a given extension

Using LaTeX creates a bunch of auxiliary files like foo.aux, foo.log, etc. Sometimes, I want to create a clean run of my ...
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1answer
51 views

Script for handling PPA's on Ubuntu

I'm writing a bash script to handle the PPA's on Ubuntu & derivatives. I was wondering how to know if I'm handling this the right way. So, the script works (flawlessly), but I posted it to a ...
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2answers
37 views

Is this an appropriate approach and layout for conditionally continuing execution in bash?

I've seen others use && for conditionally continuing execution in bash, and found it effective but rather ugly. (I'm not sure if there's a better name for this technique.) ...
2
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1answer
64 views

Bash pass multiple commands to SSH and make readable

I have a script that sends multiple commands after logging in a remote machine via SSH. Problem is, it's barely readable. I've tried quoting everything with "", but it's terrible (everything appears ...
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2answers
103 views

Bash script that updates Intel e1000e driver

I am now writing a small bash script that updates an Intel NIC driver to the latest version from the official website. Is there any way to improve\simplify the script? I want to avoid a lot of ...
6
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1answer
67 views

Bash script - automate an upload image + description process on a server

I was tasked at work to improve a system where through a web interface a client, which eventually became us, uploads a bunch of images with descriptions (latter coming from csv files), the images are ...
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2answers
148 views

Text snippet creator/manager in Bash

Below is a script to create and manage text snippets. It is also posted on GitHub. Most of the code is error checking and displaying help because I wanted to make a solid command line interface. The ...
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2answers
205 views

Running a shell command and getting output

This is the code I'm currently using to run a shell command on the current machine, intended for use only with GNU/Linux at the moment: ...
6
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0answers
64 views

Connecting to EC2 instances using the instance name instead of IP

I'm an intensive user of AWS EC2 instances, many instances are launched, stopped, repurposed, etc. To connect to any instance using SSH I must keep track of their ...
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1answer
77 views

Ruby install script; packages+installs as a .deb or .rpm from source?

I have a variety of scripts of this form: ...
9
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1answer
69 views

Help speeding up my first Bash script

This is my first more-than-1-line script. It takes an inputfolder and a file prefix and get all the files matching. For the first of the files, the script grabs the first line and appends an extra ...
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1answer
68 views

Interactive menu system in Bash [closed]

This is a simple loop menu script that I have for class. The goal was to make a menu with applicable commands. Menu: A. Greet me. (Greet the user by their username (using the whoami ...
3
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2answers
65 views

Mixing function parameters, commands and command arguments in Bash functions

I'm trying to write a bash function that will take a command such as xcode-select -v or brew -v that outputs a lot of extra ...
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2answers
48 views

Managing while loop in bash

Two difference scenario in bash program, First Here i am breaking loop in function testFunc. ...
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2answers
63 views

Parallelizing upload

I needed smth that could send (scp/rsync) many files in parallel but that would not overload machine, firewalls on the way by starting e.g. 600 simultaneous uploads, so upload should be done in ...
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2answers
70 views

Is there a 'better' way to find files from a list in a directory tree

I have created a list of files using find, foundlist.lst. The find command is simply ...
2
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1answer
80 views

Bash script to monitor Webserver php script

Below is a script I wrote today to use CURL to monitor the length of various HTTP server outputs and output a response if this is different than 103 characters. This is my first bash script, so I had ...
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1answer
113 views

Spell check interview problem in Bash

Thanks for taking the time to read this. I submitted a code screening for a company I really wanted to work for and spent a decent amount of time on their programming assignment. Pretty bummed when ...
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4answers
55 views

apt alternative for proxy environment with bash shell

As I am new to bash scripting, and want to use apt-get in my university. I know that many people have issues when trying to do so. My focus is simplicity and ease of use, but still need to be ...
2
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1answer
135 views

Bash to find all placeholder variables in a file and replace will real variables

I am looking to make a generic config file using variables such as: $PLACEHOLDER_USER Then after moving the file into the correct position I want to replace every instance of *$PLACEHOLDER_VARIABLE* ...
2
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1answer
511 views

Send email if URL is down for 2 times only - bash shell script

we want to check if URL is down or not. But sometimes, environment is down for maintenance for 3-4 hours and we dont want to keep sending emails during that time. I have written a shell script for ...
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2answers
107 views

Floating-Point data input in Bash and C

I wrote a function that dynamically stores statistical data. I tried to clone the functionality of how I had originally written my solution in Bash. Is there perhaps something I could improve, or do ...
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0answers
103 views

Project Bashory - Bash History

In effort to be more effective and productive with terminals I have started building a bash script. It is for handling the bash history of concurrently running terminals, archiving old commands, and ...
2
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1answer
68 views

cpupower bash completion script

I wrote a bash completion script for the cpupower command but I feel that it sucks, it's too long for such a simple task and have too much case/if-else nesting. It supports all the subcommands of ...
2
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1answer
143 views

Bash script to set up an ad hoc wireless network

This script creates an adhoc network using hostapd. I have tested it and seems to work reliably. I am new to linux networking and not sure if this is a recommended way to create an adhoc network this ...
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1answer
109 views

New svn repository script

This is my very first Bash script that does something real. I'm here to learn, so please tell me if and how this can be done better. ...
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2answers
156 views

Automating easy-rsa cert creation with Bash script

In order to make cert creation with easy-rsa as practical for others, this script was created and it works so far. The questions are: where can it be improved? are there flaws that are not obvious ...
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1answer
52 views

Automating the install of postgresql from Shell

When my debian server deploys it can run a shell script so I wanted to make one to install postgreSQL, create a role, create two databases and then import a schema into one. Can anyone please look ...
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1answer
44 views

Trying to remove dashes from files [closed]

Here is what I have. It runs OK unless there are no files with dashes, then I get: mv target filenameblah is not a directory. What am I missing? ...
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1answer
439 views

script- loop through files and directories

I have written the script, which unzips a zip file (passed as argument to the bash), loops through directory and files, then perform different actions based on directory or file. It is working fine. ...
6
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1answer
135 views

Push backup script

I just wrote a little bash script for rsync push backups of my laptop to my Synology-Diskstation at home. Since I am a bash beginner and don't have any experience with ...
2
votes
1answer
46 views

Input Columns with Awk

I wrote a small script to manipulate fields of a file based on the input of a user. Is there something I could've done better, or perhaps a better refactor? I do know however that I need a way to ...
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2answers
76 views

Bash log monitoring optimization

I've made a Bash script to monitor some server log files for certain data and my method probably isn't the most efficient. One section specifically bugs me is that I have to write a newline to the ...
2
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1answer
189 views

bash script to organize files and cleanup files

I have been working on a bash script for a while now to organize my movie files. I can do it by hand, but at the time I was taking a bash scripting class and thought I would like to use it to create ...
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0answers
98 views

Directory's disk usage list

For my classes, I had to finish this task: Directory's disk usage list For indicated directory print a list of files and subdirectories in descending order according to their total disk ...
1
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1answer
419 views

SpamAssassin spam analyzer script in PHP based on sa-learn command

I wrote a small script to analyse spam messages that are spam false negative; meaning that they are spam messages in nature but that happened to be in your INBOX folder because your spam filter failed ...
3
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1answer
229 views

Simple IPSec/tunnel setup script

I've developed a script to set up an encrypted tunnel between two Linux hosts, using iproute2, ssh and ...
3
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1answer
127 views

Simple bash script for opening a repository in the browser from the command line

I'm relatively new to bash scripting, and I'm wondering how I've done on this. Basically it's a script where if I'm in a github or bitbucket repository in my terminal, I can type ...
2
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1answer
75 views

Bash script to manage multiple Java Development Kits installations

I'm writing a bash script to manage multiple JDKs, the script is very simple, you have to choose a directory when you store all the jdk's, and the script maintain ...
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2answers
394 views

Bash script that can uncompress: tar, gzip, rar

This code generally works exactly as it is supposed to. I'm learning bash I'm looking for some constructive help that could help me improve my work. ...
4
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1answer
590 views

Bash Shell Script uses Sed to create and insert multiple lines after a particular line in an existing file

This code seems to work, but I'd like someone with shell-fu to review it. Is the temp file a good idea? How would I do without? Is sed the right tool? Any other general advice for improving my ...
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1answer
43 views

bash file manipulation [closed]

I have files in a directory named so: 1welcome.avi 2introdution.avi I have a rhcsa.txt file that has what these files should be named as: rhcsa_1_welcome.avi rhcsa_2_introduction.avi both the ...
2
votes
1answer
475 views

run external command from python

I have to run an external program from python. External program makes many temporary files (which conflict with other instance of same program). My strategy is Get current directory (native) path, ...
2
votes
2answers
224 views

Shell script to copy video files to another folder

I recently started running but hate running both in the quiet and with music, so i've been listening to podcasts. Unfortunately, I've caught up with all my favorites and so I've started listening to ...
3
votes
1answer
186 views

Improve a script to generally check status of several git repos

I've tried to write a bash script that gives me a general overview of the status of git repos I have cloned/created. It's not meant to replace git status by any ...