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• Bash script not working as required with xbindkeys

  - by RanRag

  I made a simple bash script to display a notification whenever my capslock key is pressed. It works fine when I call it like bash capsnotify.sh. The problem now is when I bind my above script to capslock key using xbindkeys tool it doesn't work as required. It shows a notification caps ON when my caps is on but it doesn't show caps OFF notification when my caps is off instead it again shows the caps ON notification. capsnotify.sh #!/bin/bash value=$(xset -q | awk '/Caps/ {print $4}') if [ "$value" == "on" ] then notify-send "caps ON" elif [ "$value" == "off" ] then notify-send "caps OFF" fi .xbindkeysrc "bash /home/ranveer/capsnotify.sh" m:0x2 + c:66 So, the problem is after binding my caps lock key on both events(on/off) it shows caps ON notification.

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• How can I see Bash history from more than one terminal session in Ubuntu?

  - by Sanoj

  I use Ubuntu 9.10 and I would like to be able to see my bash history for more than one terminal sessions. I.e. my last 200 commands or so, even if I have been logged out in between. When I use the history I just see all commands from my actual terminal session. How can I see more command history from Bash? Is there any specific settings for bash that I should change from the default values in Ubuntu?

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• Running a .bash file in Eclipse

  - by Anne Ambe

  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 program.As input argument to this script, I have a a configuration file which is one directory lower than the .bash file. In terminal I just do: ./startenb.bash ./CONF/ANNE it runs just fine. How can I configure the external tools in eclipse to take this file path as input argument? Any help or old thread vaguely addressing this issue is highly welcome.

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• Bash command history not working

  - by creepylol

  The command history between sessions is not getting saved. I'm using guake and the history for the session is working fine. I noticed that .bash_history had some commands I executed in "sudo -s" mode and tried the same again and all the commands while in the session got saved so I tried "chmod 777 .bash_history" Now the old commands appear at the start of a session but no new commands are getting saved Thanx in advance

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• bash command history update before execution of command

  - by Jon

  Hi, Bash's command history is great, especially it is useful when adding the history -a command to the COMMAND_PROMPT. However, I'm wondering if there is a way to log the commands to a file as soon as the Return key is pressed, e.g. before starting the command and not on completion of the command (using the COMMAND_PROMPT option would save the command once the prompt is there again). I read about auditing programs like snoopy and session recorder like script but I thought they're already too complex for the simple question I have. I guess that deactivating that script logs all the output of the command would lead already in the right direction but isn't there a quicker way to solve that probelm? Thanks, Jon

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• Manage a `visited` links history in browsers

  - by osgx

  Hello Can I edit the browser's visited links history? How can I dump full list of visited sites, or list of pages from some site? I'm interested in the solution for the most popular browsers: IE7-8, Firefox3, Safari4, Chrome3, Opera9.50+ The best will be solution, which can be scripted in JS+CSS. But plugins or instructions for managing visited links history will be good. Thanks

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• How to launch git bash window with particular working directory using a script?

  - by holocronweaver

  How can I launch a new Git Bash window with a specified working directory using a script (either bash or Windows batch)? My goal is to launch multiple Git Bash windows from a single script, each Bash terminal set to a different working directory. This way I can quickly get to work after booting computer instead of having to open Git Bash windows and navigating each one to the correct working directory.

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• Run simple bash script to start applications at login

  - by ganjan

  I want to run a simple bash script automatically when I log in. For example #!/bin/bash echo "start spotify" gnome-terminal -e spotify --title spotify When I run this command, one gnome-terminal shows up and spotify show up. I also want the gnome-terminal to popup "hidden" in a different virtual desktop. (one of the other four virtual desktops you can choose from taskbar) I tried to add this to /home/me/.bash_login or something, but that didn't work..

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• Overwrite previous output in Bash instead of appending it

  - by NES

  For a bash timer i use this code: #!/bin/bash sek=60 echo "60 Seconds Wait!" echo -n "One Moment please " while [ $sek -ge 1 ] do echo -n "$sek " sleep 1 sek=$[$sek-1] done echo echo "ready!" That gives me something like that One Moment please: 60 59 58 57 56 55 ... Is there a possibility to replace the last value of second by the most recent so that the output doesn't generate a large trail but the seconds countdown like a real time at one position? (Hope you understand what i mean :))

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• Help with Bash script

  - by Andrew

  #!/bin/bash if [ "$(Which gimp)" != ""] then { if [ "$(gimp -version)" != 2.8 ] then { sudo apt-get remove gimp sudo add-apt-repository ppa:otto-kesselgulasch/gimp sudo apt-get update sudo apt-get install gimp } else echo You already have gimp 2.8 fi } else { sudo add-apt-repository ppa:otto-kesselgulasch/gimp sudo apt-get update sudo apt-get install gimp } fi I am trying to make a gimp 2.8 installer in bash Please help me?

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• How to write Bash scribt to open two different terminals

  - by Ahmed Zain El Dein

  How to write Bash script to open two different taped terminal ,and write in both of them commands separately to be executed unrelationally for instance : Terminal number one open skype terminal number two open in the end , i want one more thing , can i write in the bash script my skype username and password to put them in skype when open it in terminal one automatically then login too Thanks

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• Bash script won't stay open in background after running through while

  - by jfreak53

  I can't get the following bash script to stay open after the first message is received from NC: #!/bin/bash port=3333 nc -l $port | while read msg; do notify-send Alert "$msg"; done After the first message it exits. I want it to stay open and continue monitoring for new messages from NC. I know that if I launch nc -l port without the while loop it stays open and I can chat away between the two connections even disconnect from the connected host. I am sending the message using: echo 'done' | nc IP port

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• lower-case 'c' key not working in bash

  - by gavin

  This is a bit of a strange one. I'm running Ubuntu 12.04. It's been working well but today, I ran into a hell of strange phenomenon. I can no longer type a lower-case 'c' in bash. At first I thought it was a misconfiguration for the gnome terminal but I tried both a stock xterm and directly at the console (ctrl+alt+F1) and the issue was the same. I can type an upper-case C without any difficulty and I can type lower-case 'c' in any other terminal based program (vim, bash, less, etc.). The lower 'c' also works if I jump into plain old sh. I looked at all the configuration files I know of and haven't found anything incriminating in there. I suspect it's not going to be that simple anyway because if I run bash with the '--norc' option from within sh, the problem remains. I don't know what else to check. In fact, if I wanted to cause this problem on a given machine, I have no idea how it could be done. Total mystery.

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• This Week in Geek History: Morse Code, Mars Rovers, J.R.R. Tolkien’s Birthday

  - by Jason Fitzpatrick

  Every week we bring you interesting facts from the history of Geekdom. This week in Geek History witnessed the first successful demonstration of the electric telegraph, the safe landing of the Spirit rover on the surface of Mars, and the birth of famed fantasy author J.R.R. Tolkien. Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC The Deep – Awesome Use of Metal Objects as Deep Sea Creatures [Video] Convert or View Documents Online Easily with Zoho, No Account Required Build a Floor Scrubbing Robot out of Computer Fans and a Frisbee Serene Blue Windows Wallpaper for Your Desktop 2011 International Space Station Calendar Available for Download (Free) Ultimate Elimination – Lego Black Ops [Video]

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• Is site first item in history?

  - by Jan Tojnar

  How to find out if site is the first item in history?

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• History of open source software

  - by Victor Sorokin

  I've been always interested, out of the pure self-amusement, in the history of open software used today: who were the people which started it and what were the reasons to start what were design decisions at the start how software evolved over the time Specifically, I'm interested in following software: GCC X Linux kernel Java Of course, there is plenty of information in Internet to google for, but I thought it would be nice to have list of interesting resources at this site. I hope some of visitors of this site have similar interest and can share a link or two they found particularly amusing/interesting. To make this entry more question-like, here's straight question: what are the most interesting/amusing links about history of open source software?

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• how to print bash varibles contents into two dimensional array bash shell

  - by puspa

  how do print bash shell variables contents into multidimensional array?? Thanks

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• bash: per-command history. How does it work?

  - by romainl

  OK. I have an old G5 running Leopard and a Dell running Ubuntu 10.04 at home and a MacPro also running Leopard at work. I use Terminal.app/bash a lot. On my home G5 it exhibits a nice feature: using ? to navigate history I get the last command starting with the few letters that I've typed. This is what I mean (| represents the caret): $ ssh user@server $ vim /some/file/just/to/populate/history $ ss| So, I've typed the two first letters of "ssh", hitting ? results in this: $ ssh user@server instead of this, which is the behaviour I get everywhere else : $ vim /some/file/just/to/populate/history If I keep on hitting ? or ?, I can navigate through the history of ssh like this: $ ssh otheruser@otherserver $ ssh user@server $ ssh yetanotheruser@yetanotherserver It works the same for any command like cat, vim or whatever. That's really cool. Except that I have no idea how to mimic this behaviour on my other machines. Here is my .profile: export PATH=/Developer/SDKs/flex_sdk_3.4/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/sw/bin:/sw/sbin:/bin:/sbin:/bin:/sbin:/usr/bin:/usr/sbin:$HOME/Applications/bin:/usr/X11R6/bin export MANPATH=/usr/local/share/man:/usr/local/man:opt/local/man:sw/share/man export INFO=/usr/local/share/info export PERL5LIB=/opt/local/lib/perl5 export PYTHONPATH=/opt/local/bin/python2.7 export EDITOR=/opt/local/bin/vim export VISUAL=/opt/local/bin/vim export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home export TERM=xterm-color export GREP_OPTIONS='--color=auto' GREP_COLOR='1;32' export CLICOLOR=1 export LS_COLORS='no=00:fi=00:di=01;34:ln=target:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:*.tar=00;31:*.tgz=00;31:*.arj=00;31:*.taz=00;31:*.lzh=00;31:*.zip=00;31:*.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:*.deb=00;31:*.rpm=00;31:*.TAR=00;31:*.TGZ=00;31:*.ARJ=00;31:*.TAZ=00;31:*.LZH=00;31:*.ZIP=00;31:*.Z=00;31:*.Z=00;31:*.GZ=00;31:*.BZ2=00;31:*.DEB=00;31:*.RPM=00;31:*.jpg=00;35:*.png=00;35:*.gif=00;35:*.bmp=00;35:*.ppm=00;35:*.tga=00;35:*.xbm=00;35:*.xpm=00;35:*.tif=00;35:*.png=00;35:*.fli=00;35:*.gl=00;35:*.dl=00;35:*.psd=00;35:*.JPG=00;35:*.PNG=00;35:*.GIF=00;35:*.BMP=00;35:*.PPM=00;35:*.TGA=00;35:*.XBM=00;35:*.XPM=00;35:*.TIF=00;35:*.PNG=00;35:*.FLI=00;35:*.GL=00;35:*.DL=00;35:*.PSD=00;35:*.mpg=00;36:*.avi=00;36:*.mov=00;36:*.flv=00;36:*.divx=00;36:*.qt=00;36:*.mp4=00;36:*.m4v=00;36:*.MPG=00;36:*.AVI=00;36:*.MOV=00;36:*.FLV=00;36:*.DIVX=00;36:*.QT=00;36:*.MP4=00;36:*.M4V=00;36:*.txt=00;32:*.rtf=00;32:*.doc=00;32:*.odf=00;32:*.rtfd=00;32:*.html=00;32:*.css=00;32:*.js=00;32:*.php=00;32:*.xhtml=00;32:*.TXT=00;32:*.RTF=00;32:*.DOC=00;32:*.ODF=00;32:*.RTFD=00;32:*.HTML=00;32:*.CSS=00;32:*.JS=00;32:*.PHP=00;32:*.XHTML=00;32:' export LC_ALL=C export LANG=C stty cs8 -istrip -parenb bind 'set convert-meta off' bind 'set meta-flag on' bind 'set output-meta on' alias ip='curl http://www.whatismyip.org | pbcopy' alias ls='ls -FhLlGp' alias la='ls -AFhLlGp' alias couleurs='$HOME/Applications/bin/colors2.sh' alias td='$HOME/Applications/bin/todo.sh' alias scale='$HOME/Applications/bin/scale.sh' alias stree='$HOME/Applications/bin/tree' alias envoi='$HOME/Applications/bin/envoi.sh' alias unfoo='$HOME/Applications/bin/unfoo' alias up='cd ..' alias size='du -sh' alias lsvn='svn list -vR' alias jsc='/System/Library/Frameworks/JavaScriptCore.framework/Versions/A/Resources/jsc' alias asl='sudo rm -f /private/var/log/asl/*.asl' alias trace='tail -f $HOME/Library/Preferences/Macromedia/Flash\ Player/Logs/flashlog.txt' alias redis='redis-server /opt/local/etc/redis.conf' source /Users/johncoltrane/Applications/bin/git-completion.sh export GIT_PS1_SHOWUNTRACKEDFILES=1 export GIT_PS1_SHOWUPSTREAM="verbose git" export GIT_PS1_SHOWDIRTYSTATE=1 export PS1='\n\[\033[32m\]\w\[\033[0m\] $(__git_ps1 "[%s]")\n\[\033[1;31m\]\[\033[31m\]\u\[\033[0m\] $ \[\033[0m\]' mkcd () { mkdir -p "$*" cd "$*" } function cdl { cd $1 la } n() { $EDITOR ~/Dropbox/nv/"$*".txt } nls () { ls -c ~/Dropbox/nv/ | grep "$*" } copy(){ curl -s -F 'sprunge=<-' http://sprunge.us | pbcopy } if [ -f /opt/local/etc/profile.d/cdargs-bash.sh ]; then source /opt/local/etc/profile.d/cdargs-bash.sh fi if [ -f /opt/local/etc/bash_completion ]; then . /opt/local/etc/bash_completion fi Any idea?

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• Sed problem in a Bash script

  - by moata_u

  Hello there. I'm having a problem using the sed command . I'm trying to write a bash script that does the following : search for the line that contain :@ then save the line that contained :@ and replace it with new line as in the following: #! /bin/bash echo "Please enter the ip address of you file"<br> read ipnumber<br> find=`grep ':@' application.properties` # find the line<br> input="connection.url=jdbc\racle\:thin\:@$ipnumber\:1521\:billz" # preparing new line<br> echo `sed "s/'${find}'/'${input}'/g" application.properties` # replace old with new line <br> The problem is: nothing happens. I've already tried to use "${find}" instead of '${find}'

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• BASH Scripting: Check If running with sudo/superuser, if not, dont run, return error

  - by EvilPhoenix

  This is something I've been curious about. I make a lot of small bash scripts (.sh files) to do tasks that I routinely do. Some of those tasks require everything to be ran as superuser. I've been curious: Is it possible to, within the BASH script prior to everything being run, check if the script is being run as superuser, and if not, print a message saying You must be superuser to use this script, then subsequently terminate the script itself. The other side of that is I'd like to have the script run when the user is superuser, and not generate the error. Any ideas on coding (if statements, etc.) on how to execute the aforementioned?

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• How do I create a permanent Bash alias?

  - by Bakhtiyor

  I would like to create an alias to rm command in order to have a confirmation message after executing this command. So I am creating an alias like this alias rm='rm -i'. But as far as I know this is a temporary alias and it lives until you close the terminal. As it is explained here to save alias permanently I need to execute ~/.bash_aliases or ~/.bashrc commands in terminal and add my alias there. But when I execute ~/.bashrc I get following error message : bash: /home/bakhtiyor/.bashrc: Permission denied When I run ~/.bash_aliases I get another error message like this: bash: /home/bakhtiyor/.bash_aliases: File or directory doesn't exist. What is the actual problem and how can I solve it?

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• How do I log into bash shell only?

  - by Tom D

  On my home desktop I want to use Ubuntu Unity sometimes and just the bash shell (without any gui) other times. Is it possible to set up a login option where I can choose between using the Unity GUI or just the shell? For example, on the Ubuntu login screen I can choose among Unity, Gnome Shell, XFCE, etc. An option there for just the Bash shell command line would be ideal. I'm not trying to invite "why would you do that" debate here. I have my reasons. Thanks.

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• Bash does not remember programs with non 0 exit status in history

  - by Amigable Clark Kant

  I enter a command. It fails. I press arrow up, modify something and enter it again ... hold it right there. It used to work like that. Now it's more like: I enter a command. It fails. I press arrow up, get the last command which didn't fail, likely "ls" or something useless and I type the whole thing again back by hand. What happened? It wasn't always like this. But it's quite some time since this behavior changed, I'll give you that. Some years ago, at least. How do I put some sanity back into my bash prompt?

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• Prevent nautilus showing partition mounted in bash script

  - by bcbc

  In my bash script I mount partitions, check them, copy files to them, and unmount. When the script mounts the partition, Nautilus pops up with a Window showing the partition and stealing focus. This is something I want to avoid. Note: I know I can change the behaviour of this in System settings, Details, Removable media, Never prompt or start programs on media insertion, but I don't want to change the behaviour e.g. if a USB stick is plugged in, I just want to prevent it in my bash script. Actually this auto display doesn't seem consistent. If I do the exact same command from the terminal, Nautilus doesn't show, and I know there are other mounts in my script that don't show. So what could be causing this? Here's an example of the code: mkdir -p $target/home mount $target/home $homedev Thanks in advance

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• build command by concatenating string in bash

  - by Lennart Rolland

  I have a bash script that builds a command-line in a string based on some parameters before executing it in one go. The parts that are concatenated to the command string are supposed to be separated by pipes to facilitate a "streaming" of data through each component. A very simplified example: #!/bin/bash part1=gzip -c part2=some_other_command cmd="cat infile" if [ ! "$part1" = "" ] then cmd+=" | $part1" fi if [ ! "$part2" = "" ] then cmd+=" | $part2" fi cmd+="> outfile" #show command. It looks ok echo $cmd #run the command. fails with pipes $cmd For some reason the pipes don't seem to work. When I run this script i get different error messages relating usually to the first part of the command (before the first pipe). So my question is whether or not it is possible to build a command in this way, and what is the best way to do it?

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