A shell script is a script written for the shell, or command line interpreter, of an operating system.

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Paging standard out using 'more', and piping to syslog

I've implemented a wrapper script which causes all commands executed via this wrapper script to log (via rsyslog) things such as the execution time, the user that ran the command, and the exit code. ...
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Who runs scripts inside /etc/cron.hourly if anacron is enabled?

I've read that if anacron is enabled cron doesn't run the scripts inside cron.weekly/hourly/daily/hourly, as not to run them twice. So anacron takes responsability on that folders. However anacron ...
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How to run correctly bash script from another script?

I want to run sqldeveloper on Ubuntu Gnome 14.04. I created some symbolic link and tried to call from one script file another. And it fail with message: /usr/local/bin/sqldeveloper: line 2: ...
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Get file created by a program launched by a bash script

I have the next scripts: | base_dir/ | - test.sh | | tests/ | | - elaborato.sh test.sh run elaborato.sh elaborato.sh could create a file (not always it create a file). I need : to know the ...
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Ubuntu 10.04 LTS - screensaver using image from shared directory [on hold]

I wonder if any Linux expert can give me a help on this? I'm stuck with a task that I need to deliver tomorrow, which is to figure out how to setup a screensaver on many machines with Ubuntu 10.04 ...
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Desktop shortcut doesn't work for script but script work fine

#!/bin/bash/ ls -1 *.mp3 > playlist.m3u for (( ; ; )) do mplayer -playlist playlist.m3u; sleep 0.1; done This is the script and it works ! [Desktop Entry] Version=1.0 Type=Application Name=Play ...
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Permanent autostart

I would like to make a Python 3.4 script that starts with my computer so that it's permanently checked to start up with the computer (edit: permanently checked means it can't be disabled via ...
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need to match a string and then print next string matches and continue till next string

I am having troubles with manipulating a big text file, My sample f1.txt have several 3000 plus lines, with below format I need to match a string , and then match lines after that string with ...
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BASH script for extracting archives - how to make the script ask for folder destination?

I've started using the bash script below, for unpacking archives. How would I go about making the script ask if I would like to specify a folder, or just use the default folder to extract to? I'd ...
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How do I run a script on Unity login/logout?

I have two scripts - one to mount some folders over SSHFS - and one to unmount. I would like to launch the mount script when my default Ubuntu desktop is launched (after I log in at the graphical ...
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Automatic screen capture script

I'm looking to accomlish exactly what Anwar Shah describes here Bash script to take screenshot and save the image - Ubuntu with the added functionality of setting a time increment for the script to ...
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setting up a script to rotate scren Lenovo Yoga Thinkpad S1

I am trying to set up a Lenovo Yoga Thinkpad S1 to rotate the screen with the touch of a button but I am having a little trouble with the script that actually does the work. I have found the scripts ...
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Open terminal in 'always on top' mode on startup

I want Ubuntu to open a terminal in the lower right corner when I log in, with the always on top mode enabled. I have made a script which does this when I run it from a terminal, but it does not work ...
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23 views

Simple bash script not working

I'm pretty new to bash scripting. I'm trying to make a script to export the http_proxy variables. This is what I do from the terminal: $export http_proxy=http://proxy21.iitd.ernet.in:3128/ $export ...
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run bash script from another script and redirect its output

Hi everyone I have to do a program.. I'll be really concise to explain it... And hat I've already done and what i have to do... Simply, I have to do a "simulator" in Bash that run exercises of ...
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End script and restart it with the same options and arguments

Usually !! repeats the last given command. But it doesn’t seem to work in a bash script. Is there a way to end a script and repeat it with the exact same options and arguments given the last time? ...
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problem occuring while creating .exe file

I'm trying to run test problem in the mfix but got struck with an error sh: 0: Can't open ../../model/make_mfix. bhaskar@admin2-Precision-T7600:~/mfix/run/tests/Added_Mass$ sh ../../model/make_mfix ...
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Run terminal command (python command) at start up [duplicate]

New to Ubuntu, but have looked everywhere to get this question answered. Found no solution so far. Basically I need to run two terminal commands on startup, which follow each other directly. This will ...
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How do I open an URL from a bash script?

I have a simple script to start a node.js webserver and open the URL in a browser. However the last part doesn't seem to work, it wont open the URL in a browser (or anywhere else). This is the code I ...
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How to compare two files

So basically what I want to do is compare two file by line by column 2. How could I accomplish this? File_1.txt: User1 US User2 US User3 US File_2.txt: User1 US User2 US User3 NG Output_File: ...
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Can someone kindly tell me what this line of script does [closed]

I had this segmentation fault while trying to run a script. I will like to know what it means.Thanks ./start_enb.bash: line 202: 8746 Segmentation fault (core dumped) ./lte-softmodem -K ...
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Make password appear censored in bash script

I am going to make this short and simple. I am making a bash script where the user needs to enter their root password using the read command and it will be stored in a variable. What I don't like is ...
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What is wrong with this script?

So I got this script from this guide: www.tldp.org/LDP/abs/abs-guide.pdf LOG_DIR=/var/log ROOT_UID=0 LINES=50 E_XCD=86 E_NOTROOT=87 if [ "$UID" != "$ROOT_UID" ] then echo "Must be root to run this ...
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Kindly explain to me what this script does

Can someone kindly explain to me what this script does? I am a newbie to scripting language. if [ $# -eq 1 ]; then declare -x CONFIG_FILE_DIR=$1 Thanks
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Running a .bash file in Eclipse

I know this is really an Eclipse issue but I can't seem to login in their forum. I am running eclipse juno for some c/c++ development.However, I wrote a .bash script that initiate the entire ...
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passing a font as an argument to a script

I am trying to use osdSH for notifications. It has a 'font' parameter that receives a curiously formed string. From the man: -f -font Set font (Default: ...
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Why the same .sh does not work with 2 different users executing it?

I have rwo users User1 and User2. I have this script1.sh inside User2 home folder: #!/bin/bash cd /home/user1 && ./script2.sh that calls script2.sh: #!/bin/bash if [ 2 > 1 ]; then ...
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63 views

Script for changing resolution!

I need help writing a script/program that changes my resolution. When I click on that program I want it to change the resolution. I'm pretty new to Ubuntu, but I gave it a try and wrote one on my own, ...
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.sh file on Startup Applications isn't executed

This is a followup to a question about dialog boxes. I want to show a dialog box both at the start of a session, and after n minutes of inactivity. I have decided to use zenity and xautolock. I have ...
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Do higher level scripting languages use shell scripts to work?

I'm just learning about bash and when I saw that bash uses 'echo' I tried to search for the relationship between PHP and bash and it seems like people are building programs were bash script and PHP ...
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Can't figure out JOIN command

I have two files and I'm trying to join them at a certain spot. I'd like to join them at the fourth column of the second file using the first column of the first. It's driving me nuts! Here is what ...
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How to schedule a shell script using crontab [duplicate]

I want to schedule a shell script to run everyday excluding sunday at 7:30 pm using crontab can you please help
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Query about a script that makes webcam take an image every x seconds

I have a Trust usb webcam. I'm looking for (or creating) a script that could take a screenshot from the camera every 10 seconds and save the image to disc with a timestamp for a filename. I've found ...
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Tell me where is mistake in anacron task?

I have tried to make this task for abacron: dm@dm-system:~$ cat /etc/anacrontab # /etc/anacrontab: configuration file for anacron # See anacron(8) and anacrontab(5) for details. SHELL=/bin/sh ...
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bash utility 'dialog' leaves a messy screen

When I run this script it displays options in a menu style on my terminal and then runs the relavent command in the script. #!/bin/sh TEMP=/tmp/answer$$ dialog --ascii-lines --title "Administrative ...
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Complicated script involving command line and XFCE Terminal

I run Ubuntu 14.04 and installed the XFCE Terminal for some reason, and what I want to do is make a script to go to a folder on my hard drive under /Server/Gen2 and run several .sh scripts in ...
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Trouble using cd command with “~” or “$HOME” in bash scripting

We know that ~ and $HOME refer to the home directory of the current user. (For me echo ~=echo $HOME=pandya). But I can't use it in bash scripting. Here is a simple example script: #!/bin/bash echo ...
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Dropbox not running after logging off: init.d vs. dropbox.py

I'm inheriting admin control over a server used to process and share data between investigators. We've been trying to use Dropbox to share some of the files. Dropbox was installed when I took over the ...
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script in bash not understood using terminal in Ubuntu 12.04 [closed]

Can anyone tells me what does this script means found in a .sh file:: [ ! -n "$T_R" ] && echo "Message Appear" && exit 1;
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variable.sh is not exporting the variable using terminal

I want to export many paths using a .sh script. after running it nothing is exported I don't know why. so if anyone can advise. This is the script used: #!/bin/bash txtrst=$(tput sgr0) # Text reset ...
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31 views

Declare a variable when running the script bash

How to declare the variable content when running the script? I know that is possible to use $1 $2 $3 to set a variable when running the script ./script.sh this is sparta, but I did not found a way to ...
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call shell script from php when ubuntu 14.04 (rightly) disables the shell for www-data

I just migrated from 12.04 to 14.04. 14.04 (sensibly) disables login / shell for www-data. But my php site needs to run some shell scripts to run stuff like kindlegen, rsyncing files to another server ...
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Permissions when running second level script

Evening Everyone, I have 1 bash script that starts the program Motion (some may be familiar with). Motion links to a script in the motion.conf upon picture save or file save to a perl script that ...
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Ubuntu crashing on purple loading screen

I've done something which unfortunately seems to have caused Ubuntu 14.04 to fail at start up and was wondering whether I could get some guidance about debugging the issue. It started when I rebooted ...
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How to activate script on laptop from smartphone?

I want to run a linux script on my laptop remotely from my smartphone (iPhone, namely). For simplicity let's say the script is called myscript.sh and it is located in /root/Desktop. I am running as ...
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Why does hitting Control + C when in an application launched from a script, break the script?

To jump straight in: while true; do #--- MENU LOGIC HERE, stick response in $MENUEXIT #----Deal with responses here if [ $S1 == $MENUEXIT ]; then tail -f /path-to-file ...
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installing a script in $PATH

I am trying to use yeoman in Ubuntu. Everything is installed correctly but I can't use the command yo from bash. If I navigate to the appropriate directory and run node cli.js everything works from ...
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How to start GUI application with upstart?

I have struggled with this problem for three days and I have tried many ways to solve it but not successful yet. I hope you guys can help me... I have an GUI application. I want to start this ...
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2answers
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Translating from Red-Hat to Ubuntu

I am starting in linux because I need it for my reseach. Since I have little time and no local expert support, this is a need based self-learning experience. I have to install a tool and I got this ...
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Script runs program instead of just running script

I want to make a script to run the following command with a double click. My script is: cpufreq-selector -c 4 -g performance Manually running it in terminal is fine but if I use a .sh file it ...