Bash is the shell used in Ubuntu's command-line interface.

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How to clear system tray notification via command line

I have an application which produces system notification every 5 seconds. Overtime the notification tray I have (Gnome env) gets crowded. How can I clear it like every minute but I need to do this ...
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94 views

Upstart and process substitution

So I want to use the following in my script stanza: forever -l >(tee $QW_LOG_DIR/webserver.log | logger -p user.info -t '[QW]') start webserver.js However, that won't work because: That's bash ...
3
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356 views

msmtp not working?

I was trying to send mail from bash, but it doesn't work and I can't find the reason... So my .msmtprc file is account default host smtp.gmail.com port 587 from account@gmail.com tls on tls_starttls ...
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18 views

How to check the password entered is a valid password for this user?

The scenario: In a bash script, I have to check if a password given by a user is a valid user password. I.e suppose I have a user A with password PA.. In the script I asked userA to enter his ...
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50 views

How to get bluetooth serial port tx/rx buffers status?

The problem comes from that I have to send data via bluetooth serial port from a tiny robot to my laptop at baudrate 115200, robot sends 32-bytes packet every 10ms (100 times per second). Transmission ...
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70 views

How to have a video player resume from where I last left off?

I'd like to be able to launch a video player (VLC, SMPlayer) via Terminal, using some command like resume_media and then it will automatically find the most recently played media file (.mkv, mp4 etc.) ...
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115 views

How do I force nmcli to reconnect to different uuid?

I have a bash script that checks my network environment and mounts shares accordingly. If I'm at work and have a hard-wire connection to the LAN, then I'd like to activate a hotspot connection for ...
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114 views

pdsh works well standalone, but doesn't work in script

I am trying to install hadoop via script on my small cluster [introduced in the book: Apache Hadoop Yarn]. I have set up ssh connect without password, and pdsh&pdcp are all fine if I use it alone. ...
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382 views

Slow bash tab completion

My bash shell's tab completion is very slow, usually taking 1-2 seconds per completion. This only seems to happen when I'm using my laptop from work. Tab completion is very speedy when using my laptop ...
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97 views

Can I set up a cron job on Ubuntu Phone

I've been looking around, and can't find if Ubuntu Touch can run cron. So my question is: Can it? Also does it have a standard set of bash utils installed?
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1k views

How can I create an X server that has a backing store?

So I am completely new to Ubuntu (I am running 12.04 on a Toshiba Satellite). I am trying to remotely access my work computer but I keep getting an error reading: "xevas: requires a X server that ...
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726 views

Why doesn't duply work when set as a cron job?

I have a problem with a cron job which starts but doesn't complete. Running the command manually works fine. I already read the page about cron issues and solutions here on AskUbuntu, tried the ...
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25 views

speech-dispatcher always stop working after terminal exit?

In a previous question I made this line: trap 'clear; ~/ascii3.sh; spd-say "Exit"; sleep 2' EXIT The content of ascii3.sh is: echo -e "\033[01;31m" echo " _ _ __ _ _ ____ __ __ _ ...
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41 views

Bash script: command not found

I have an executable script install_packages.sh in /home/etienne/admin folder. The directory's path is added to $PATH variable from /etc/bash.bashrc. When I type #echo $PATH I see that the variable ...
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35 views

Connecting Ubuntu to Windows Domain

I made a bash script to automatically connect Ubuntu computers to a domain using PBIS Open. The script works and connects computers to the domain just fine almost every time. After awhile though, a ...
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18 views

Unresolved dependenices after trying to reinstall ROS

I tried to re-install ROS because of issues with not finding system paths correctly and now all I can see is a black screen when I turn on the computer. In tty1, when I try sudo apt-get install ...
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27 views

How do I run as bash script from a WebApp?

I currently am developing a custom Ubuntu dist. that runs a dedicated Kiosk app upon boot. I would like an easy method to shutdown from inside the Kiosk app, but I am currently at a standstill at what ...
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64 views

Showing progress in whiptail while using sshpass and SCP

I'm writing a bash script that automates the building, copying and running of a golang app to a remote server. I'm using whiptail to let the user pick some options, enter in some details (e.g. SSH ...
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23 views

Disappearing files in the cat command

I am handling a rather large dataset. I have 238 files, for whcih I would like to import their content into excel. In order to do so, I am creating a combined txt file using cat *.pdb > ...
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62 views

bash script to cd into an USB device

i am creating a simple updater for a program which will be ran on an Odroid C1 with Ubuntu 14.04 Server.. Preamble 1) i want the updater.run downloaded from my server and placed into an USB; then ...
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53 views

If you install anaconda, how can you inactivate the anaconda environment?

I'm currently using Anaconda to get access to a "standard" set of packages on nearly any platform. The issue is, on the linux side of the house, my current approach is to tell the installer to ...
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68 views

Randomizing host name and mac address on boot

I'm trying to set up a startup script to randomize my hostname and mac address on boot. Here is the script http://pastebin.com/qatdtbVH The random mac address is working fine, but the hostname ...
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46 views

Altering command to start application by mouse click - how to

I have Google Earth installed on my Ubuntu 14.04 (Trusty Tahr) and, in order to display clamped polygons on it, I have to start it with the command LIBGL_ALWAYS_SOFTWARE=1 googleearth. I would ...
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47 views

How to automate configuration of legacy wireless drivers during installation

Perhaps the most common roadblock in deploying Linux on donated machinery is getting them to access the wireless network, due to the known issues with supporting legacy Broadcom drivers. Instead of ...
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48 views

Desktop Environments Incorrect After SLiM Install

I am working on making an automated install based off of Lubuntu using Debian Installer so that the install is as automated as possible (a few inputs at the very beginning). So far I am mostly pleased ...
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53 views

Errors in update checking script (cause: repositories not available)

I have a scripts that tests if updates on my 14.04 server are available, and send me a text message if that happens. The bash script begins with: IFS=';' read updates security_updates < ...
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258 views

Increasing ALSA's buffer size

I'm trying to change ALSA's original buffer size, in order to increase it. Until now, I had no luck. I've tried to execute the commands listed in http://pastebin.com/4FibYN0U, however,I don't have ...
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37 views

How to terminate server process?

I just created automation sending an email using a shell script, but it always running and send me an email every sec to my email. I'm using PID and that process name to terminate it, I'm writing ...
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59 views

$DISPLAY env var gets cleared at random times

Stock Ubuntu 14.04 Trusty. I seem to regularly experience the $DISPLAY environment variable getting cleared for some reason I don't understand. Basically everything will work just fine until it's ...
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36 views

Change content of list in app indicator made using cappind

I made a simple indicator using cappind script which is based on zenity - Webupd8 article Capind page I want to change the text of the list according to some condition.. Like, if the contents are - ...
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133 views

Unable to reproduce the ShellShock bug locally

I have been trying to reproduce the Shellshock bug on my local 14.04 Ubuntu VM without any luck. I know my local bash version is still vulnerable because the following command prints out the commented ...
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232 views

Synaptic Package Manager -E-“cache open”, E - Default-Release not available

In an attempt to re-install Bash I tried to open Synaptic Package Manager but got this message E: The value 'precise-updates' is invalid for APT::Default-Release as such a release is not available in ...
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159 views

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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198 views

How can I draw selection rectangle on screen for my script?

I am trying to make a simple screencasting bash script. I want to get screen selection coordinates by drawing a red rectangle with mouse. I can use xdotools to get coordinates but how can I draw ...
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332 views

Can you use gnome keyring in bash script, if yes then how?

I am developing a automated mounting script for Windows shares. I have finished the script and it works just fine, but is it possible to add Gnome Keyring to the bash so once user writes hes/hers ...
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55 views

On Trusty, what is CL program to create desktop configuration file?

On Precise, I used to create a desktop configuration file with my own GUI wrapper which called the gnome-desktop-item-edit command line program (part of the gnome-panel package) which had the ...
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223 views

Why is netcat remote shell not returning any output on ubuntu 12.04?

I'm connecting to a server I have on my laptop, both are on the same vmnet and both systems are Ubuntu 12.04 LTS. In order to connect I use reverse shell from the web sever. First I start listening ...
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314 views

java file will not launch from .desktop file - Ubuntu 12.04 LTS

I have a bin/bash script- #!/bin/bash java -Xms256m -Xmx1g -jar KeeperDesktop.jar inside an executable text file ( keeper-start) I have created a .desktop file for it as i want to launch it ...
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323 views

Cursor positioning using mouse in bash possible?

In Vim I can actually position the cursor in insert-mode using the mouse. So I assume this should (technically) also be enable-able for the bash. Is it possible? This would be quite useful at times ...
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134 views

How To Set FQDN From Bash Script

Is it possible to set the fully qualified domain name from a bash script? I am using Ubuntu 12.04 LTS. I have an autoscaling group on Amazon and I am using Puppet for configuration. For example, I ...
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182 views

getting problem while executing ./bootstrap

bootstrap file content : !/usr/bin/env bash # The contents of this file are subject to the MonetDB Public License # Version 1.1 (the "License"); you may not use this file except in # compliance with ...
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217 views

Problem with characters encoding in bash in 12.04 new install?

I just installed Ubuntu 12.04.4 64 bits, all seemed to be ok, when I started to work on console I noticed: that I couldn't get some accented characters typed in to the console, for example, if I ...
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90 views

Matlab compilation returning an error when run

After putting in numerous hours, I felt ready to run my code on my friend's high end computer. I compiled my application (named Zeta). However, when I entered: sh '/home/nicbit/Desktop/run_Zeta.sh' ...
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81 views

Login errors in .bashrc in 13.04

I just upgraded to 13.04, and suddenly I get xsession errors in my .bashrc on login. There is nothing wrong with the .bashrc file--I can source it from a terminal login, and after I get into the ...
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278 views

javac cannot found, even after adding non-standart path to it in $PATH

Ubuntu 12.10, 32bit Problem too damn simple: I have a NTFS partition and unpacked from .tar.gz jdk on it. All I need from bash, is to see javac compiler, that is located in directory ...
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4 views

Install linux-image-$(uname -r) non-interactively

How do I install linux-image-$(uname -r) non-interactively? sudo apt-get -y install linux-image-$(uname -r) The above command will get me past the initial "do you want to install this" prompt, but ...
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27 views

After changing Ubuntu 9 version to ubuntu 12.04.If i run my code i get core dumped segmentation fault

After upgrading from Ubuntu 9 to ubuntu 12.04, when I run my my shell (below) I get a: core dumped segmentation fault This code used to work before. My C-based applications still work. #! ...
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28 views

Running a bash script on “Switch User”?

I've had my first dabble with bash and got a working script going for each user on session start which checks if a NAS share is mounted and if it is unmounts it and mounts as the current user. This ...
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28 views

sed error Bash script

So here's the deal I'm trying to do some auto editing of a file with sed in a bash script. Here's my code: systemdate=$(date) sudo mkdir "/tmp/autoupdate" sudo echo "$systemdate" > ...
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42 views

How to I clear bash history completely in Ubuntu 14.04?

How do I completely clear bash history from Ubuntu 14.04? I tried the command "cat /dev/null > ~/.bash_history" and other commands I found, such as "cat /dev/null > ~/.bash_history", but none of ...