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Search found 4783 results on 192 pages for 'bash completion'.

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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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• 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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• 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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• 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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• TAB completion not working in ubuntu hardy heron

  - by Tutul

  I have recently installed ubuntu hardy and found that shell command completion with TAB doesn't work, the package 'bash-completion' is installed in my system. I guess it is related to dash being the default shell? Is there a way to use tab completion in dash? If there isn't a way then how can i change my default shell to bash?

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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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• 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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• Retrieve a command from another, remote bash session

  - by Oli

  So I was on our laptop, SSH'd into my desktop, dropping some mad bashfu skill. There was one command I ran which was particularly skilful. I'm now about minute walk from the laptop and I really want that command here on my desktop, so that I can run it again. I realise I've already spent more time that it would have taken to rewrite it, but this has raised a common issue I have with bash history. I know I can force it to update each command, but I haven't... so: Is there any way to get a history from a different, live bash session?

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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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• C code - ls system command not showing bash colors

  - by m0atz

  I've just been fooling around with some code in C, an example of a really basic program is as follows which just, obviously, lists the directories using the ls system command. #include <stdio.h> int main (void) { system("ls -l -d */"); printf("I've just listed the directories :-)\n"); return 0; } This runs fine, but it shows the ls output in monochrome, whereas Bash would output the list using colors for the directories (or files if I included files). How can I make my C code use the bash colors? Thanks

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• Creating A Simple Bash Script With Multiple Commands

  - by unorthodox grammar

  Trying to create a bash script that opens gnome-terminal, and then runs ls to display the contents of a directory, but it just opens gnome-terminal. I will be creating some other scripts that also use multiple commands. My script: #!/bin/bash gnome-terminal ls -a /examplefolder EDIT: To clarify what I'm trying to achieve. I'm trying to create a script that will open gnome-terminal, list the contents of /examplefolder, and then be ready for regular terminal usage. Is this possible, or am I barking up the wrong tree?

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• Dynamic case statement in bash

  - by infra.user

  Hi folks, I'm trying to figure out how to create a dynamic case statement in a bash script. For example, let's say I have the output of an awk statement with the following contents red green blue In this scenario, the output can change at any time. I'm trying to then execute different logic if a value is included in this awk output. So if the data above is in $list, then I'd conceptually like to do something like: case "${my_var}" in $list) ..... something_else) ..... esac I'm trying to use this to build a dynamic custom tab completion function (see http://www.debian-administration.org/article/An_introduction_to_bash_completion_part_2 for some background). Any ideas? Thanks.

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• fixed width bash prompt

  - by seaofclouds

  I'd like to set my bash prompt to a fixed width, and make up the difference in space before the $, so whether long or short, my prompt remains the same width: [name@host] ~/Directory/Dir...Another/LastDir $ [name@host] ~/Directory(branch) $ Currently, in a short directory path my prompt looks something like this: [name@host] ~/Directory(branch) $ a deeper directory path looks like this: [name@host] ~/Directory/Dir...Another/LastDir $ You can see I've truncated the PWD in the middle so I can see where the path begins, and where it ends. I'd like to make up the difference before the $. Here is my current prompt: # keep working directory to 30 chars, center tuncated prompt_pwd() { local pwd_symbol="..." local pwd_length=30 newPWD="${PWD/#$HOME/~}" [ ${#newPWD} -gt ${pwd_length} ] && newPWD=${newPWD:0:12}${pwd_symbol}${newPWD:${#newPWD}-15} } # set prompt prompt_color() { PROMPT_COMMAND='prompt_pwd;history -a;title_git' PS1="${WHITEONMAGENTA}[\u@\h]${MAGENTA} \w\$(parse_git_branch) ${MAGENTABOLD}\$${PS_CLEAR} " PS1=${PS1//\\w/\$\{newPWD\}} PS2="${WHITEONTEAL}>${PS_CLEAR} " } In my search, I found A Prompt the Width of Your Term which does do some fill, but couldn't get it working for this particular prompt.

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• How to interrupt stuck bash tab completion?

  - by codeape

  Case: A Windows share mounted using samba over a flaky VPN connection (sometimes very slow, sometimes it drops) When doing tab-completion on filenames, my bash shell can freeze up if the VPN is slow or dropped when I am attempting the tab completion. Example: $ cp myfile.zip /mnt/winbox-c/Progr<tab> key pressed here Is there a bash key I can press to get bash out of its hung state when something like this happens?

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• What steps put my bash prompt commands into vim and then back again to bash to execute?

  - by xtian

  I've enabled VIM style editing of bash commands at the bash prompt as default bash setting. On a few occasions I've accidentally opened a blank vim file with some complex bash command I was writing. Awesome. How do I get the newly written line in vim back into bash? I found another post where the author had the opposite trouble--or so it seems. What steps put my bash prompt commands into vim and then back again to bash to execute?

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• Remove a line from a csv file bash, sed, bash

  - by S1syphus

  I'm looking for a way to remove lines within multiple csv files, in bash using sed, awk or anything appropriate where the file ends in 0. So there are multiple csv files, their format is: EXAMPLEfoo,60,6 EXAMPLEbar,30,10 EXAMPLElong,60,0 EXAMPLEcon,120,6 EXAMPLEdev,60,0 EXAMPLErandom,30,6 So the file will be amended to: EXAMPLEfoo,60,6 EXAMPLEbar,30,10 EXAMPLEcon,120,6 EXAMPLErandom,30,6 A problem which I can see arising is distinguishing between double digits that end in zero and 0 itself. So any ideas?

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• Bash script not adding variables to session

  - by travega

  I have a bash script that I have added as a startup application. It does a bunch of exports and alias assignment. #! /bin/bash alias devhm='cd ${DEV_HOME}; ll'; alias wlhm='cd ${WL_HOME}; ll'; alias dirch='watch --interval=1 "ls -la"'; alias vols='watch --interval=1 "df -h"'; alias svn-update='svn update --depth infinity ./*'; alias mci="~/mci.sh"; alias vncserver="vncserver -geometry 1680x1050"; alias ..="cd .."; alias hist="history | grep "; export PROXY_HOST=proxy.my.setup; export PROXY_PORT=3128; export LD_LIBRARY_PATH=$LD_LIBRARY_PATH/usr/lib/oracle/12.1/client64/lib; export ORACLE_HOME=/usr/lib/oracle/12.1/client64; export TNS_ADMIN=${ORACLE_HOME}/network/admin; echo "DONE!"; But none of these values are available in my terminal sessions anymore. Even when I run the script straight into the terminal like so: ./setup.sh I see the "DONE!" prompt printed but no aliases or env variables are set. If I copy and paste the contents of the file into the terminal the aliases and env variables are set. I have tried adding a line to execute the script from .bashrc also but still no aliases or env variables set. Any ideas what might be going on here? Also could anyone suggest a better way to have these env variables/aliases added to every terminal session?

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• Menu tab completion for recent history in zsh

  - by dat5h

  I am interested in a potential zle widget for zsh. Is there a way to build a widget that mimics the kill-completion selectable menu? Essentially I want to be able to press , tab in vi-command-mode, or maybe !-tab-completion at the shell and get a list of recent history (or related history compared what is already entered at the commandline) that allows me to scroll through it and possibly select a relevant function to call or compare similar calls. Looking through the manual I stumbled onto a similar widget that I have mapped like so: # tab completion history menu (vicmd) autoload -z history-beginning-search-menu zle -N history-beginning-search-menu-space-end history-beginning-search-menu bindkey -M vicmd "\t" history-beginning-search-menu-space-end # emacs binding could be "\e\t"? (I wouldn't know) Therefore, if I enter vicmd and hit tab when I enter something like "grep", then I get a list of all grep calls in history. It also asks me for the list-number and it will perform the numbered item in history. If I enter a space and then try this, it lists ALL of my history history. This is fairly close to what I want, but there are some problems. For example, 1) it prints the entire list of relevant history and does not check the number of lines of the screen so it could easily blow up the space on the terminal; 2) when I type in numbers for selecting an item in history it does not show me the numbers I type, so I may make a mistake and have to start over again; 3) I would love to be able to hook in appearance tweaks. I was wondering if there exists more updated version of this widget or if there is any way to look at the source for kill-completion or history-beginning-search-menu to see if I could think of a way to do it.

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• difference between flower brackets and normal brackets in bash?

  - by Bharath H S

  what is the difference between flower brackets and normal brackets in bash? FYI... I did not get it in the related questions list and also not able to locate it in questions search. Please point me to the question if it has been already asked.

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