.bashrc is the primary configuration file for the bash shell.

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8
votes
3answers
286 views

How can I have my .bashrc only invoke TMUX if it exists on my system?

I use tmux on most boxes, but not all. I have the following line in my .bashrc file: [ -z "$TMUX" ] && export TERM=xterm-256color && exec tmux which invoke tmux if it exists. I ...
16
votes
2answers
413 views

How to retrieve lost aliases?

Let me start by saying I know this was dumb. Time and Linux make fools of us all. I made an echo command to my .bash_aliases file and erased all of my aliases, except the test alias. However, I ...
5
votes
1answer
56 views

Linux: $SSH_CONNECTION is set even without SSHing to the server

I have a remote server and I am writing a script in the server and want it to fire only when I SSH. I thought of using the $SSH_CONNECTION and $SSH_TTY for this purpose. I found out that when I have ...
4
votes
1answer
79 views

PS: what does “ps -o comm= -p $PPID” do

I have a script which does ps -o comm= -p $PPID. The explanation says this gets the parent process name. From the man page I found out -o means user defined format, comm means command and -p means ...
3
votes
3answers
105 views

Messed up bash.bashrc file, commands not working anymore

Trying installing Java, I tried to add it to the executable path with the line: export PATH=/usr/lib/jvm/jdk1.7.0_60/bin:$PATH in the system-wide /etc/bash.bashrc file. For some reason this ...
6
votes
4answers
104 views

disabling job control in bash (CTRL-Z)

It happens to me sometimes, that I press CTRL+Z by accident and my application disappears into background. I know, I can bring it back with fg, so it's not such a big deal. But I am wondering about ...
2
votes
2answers
41 views

How do I remove the new environment commands that were created by the virtualenvwrapper script?

I've installed and run virtuarenvwrapper.sh to try to configure an alternate version of python on my system. This script has placed somewhere a series of commands that are now executed whenever I ...
1
vote
2answers
40 views

How to find out the right String syntax for my bash?

I am getting an error message for this alias: alias ejectall='osascript -e 'tell application "Finder" to eject (every disk whose ejectable is true)'' And here is the error message: -bash: .bashrc: ...
2
votes
2answers
199 views

What is the purpose of .bashrc and how does it work?

I found the .bashrc file and I want to know the purpose/function of it. Also how and when is it used?
9
votes
2answers
784 views

Is it OK to use “.” to run files instead of source - in .bashrc in Ubuntu and OS X?

OK, so source runs the script in the current shell and . separately, as detailed in running script with ". " and with "source " for example, but, specifically, in my .bashrc file, ...
0
votes
2answers
51 views

How can I shorten an if then else using the [] format

I want to shorten this to a one liner: if ls --version 2>/dev/null | grep -q 'coreutils'; then alias ls='ls --color=always' else alias ls='ls -G' fi I frequently use [] for conditionals, e.g. [ ...
1
vote
0answers
156 views

Make xterm transparent

I'm going through the process of making xterm transparent, I've followed the steps on this site. I installed transset-df and Xcompmgr and added this line to my .bashrc file [ -n "$XTERM_VERSION" ] ...
1
vote
1answer
128 views

Terminal, Prompt changed to “-Bash-4.2” and colors lost

Usually my terminal prompt was username place$ now it only shows bash-4.2$ and all the color settings have been lost (on the terminal profile I have the same color scheme, but it just don't show ...
3
votes
2answers
204 views

How can I use nested [] to replace a if-then-fi ? (“[: -f: binary operator expected”)

In my .bashrc file I have: if [ -f /etc/bash_completion ] && ! shopt -oq posix; then . /etc/bash_completion; fi I wanted to use [] around it instead of if then fi I already have [ -f ...
0
votes
1answer
105 views

RVM + TMUX—Duplicate entries in $PATH

My Linux terminal config files (.bash_profile, .profile, .bashrc) expand $PATH by prepending some custom directories. This only happens once (and I've also included some ENV vairiable based guards to ...
5
votes
3answers
82 views

How can I make my .bashrc call to shopt -s autocd depend on the bash version?

In Ubuntu I like having shopt -s autocd in my .bashrc file for automatic CD'ing with typing 'cd', i.e. just type the directory name (and probably use tab completion too) and press return and be ...
2
votes
2answers
77 views

bashrc that calls other bashrc depending on linux distro

I login to a system that reads my bashrc file and loads some software ready to use. I'd like to load a given bashrc file depending on the linux system that I am logging into. Specifically, if I am ...
6
votes
1answer
124 views

Is there a Bash file that will be always sourced in interactive mode no matter if it is login or non-login?

As far as I know the interactive shells may be login or not login and the start up files for them are different. If interactive + login shell → /etc/profile then the first readable of ...
0
votes
3answers
108 views

How to create a permanent alias without resourcing the .bashrc-like file?

I really like bash aliases, it annoys me that every time I want to add a new alias I have type two commands: echo "alias \"short-cmd\"='long-command'" >> ~/.bash_aliases source ~/.bash_aliases ...
3
votes
1answer
279 views

Where can I find a good boilerplate bashrc?

I've used unix/linux at work in the past, and recently started developing on a Mac. I'd always (lovingly) borrow co-workers' bashrc's for a good starting point, such as common aliasing and commands, ...
3
votes
2answers
106 views

Setting tabstop for bash output

Is it possible to set a tabstop (number of spaces per tab) for the more and less commands? In vi, I've added this line to .vimrc set tabstop=4 However when I read through a file with more it still ...
0
votes
2answers
146 views

How to write an alias function to make dd show progress bar?

According to this article, by replacing: $ dd if=/dev/sda of=/dev/sdb [additional options] with: $ pv -tpreb /dev/sda | dd of=/dev/sdb [additional options] one can augment the default dd ...
2
votes
4answers
92 views

Defining aliases for a certain directory

Is there a way to have an alias set for a particular directory and its subdirectories? I know I can put it in my .bashrc file, but I would like it only for a certain directory. Edit: what i mean is ...
3
votes
1answer
43 views

Why did my “d” break when I screwed up a bind?

I was swapping some readline settings in my .bashrc earlier today and mistyped the following (bind since it's not in .inputrc): bind "mark-symlinked-directories on" I forgot to put a set in there ...
0
votes
1answer
39 views

Using !n in script or interactive mode

I add to ~/.bashrc the following code: test_exclamation () { printf %s "$READLINE_LINE" | xargs echo } bind -x '"\eX": test_exclamation' I write to bash prompt buffer $ !1700 If I press Enter, ...
5
votes
2answers
172 views

how to add command line calculator to bash that uses comma as decimal mark?

How can I add a command line calculator to my bash? I have found some, but all of them use the full stop as decimal mark, but I want to have it to use the comma as decimal mark as most of the world ...
0
votes
1answer
226 views

java add to the path

I have some .jar files in a directory, /home/unix/dfernand/bin/picard/picard-tools-1.106. But when I add the directory to the PATH and CLASSPATH in my bashrc, java still does not recognize the .jar ...
0
votes
2answers
122 views

How to format history file to contain username too?

tail -2 /root/.bashrc export HISTTIMEFORMAT="%d/%m/%y %T " export PROMPT_COMMAND='builtin history 1 >> /var/log/root.log' With this all the commands could be logged (even the ones that were ...
1
vote
2answers
143 views

Debian: How to resolve Xserver failure

I keep finding similar posts online but I can't really use the solutions in my case. in my /etc/bash.bashrc file, I have the following code placed at the very bottom: if [ -e /tmp/.X0-lock ]; then ...
6
votes
2answers
447 views

l, ls & la — what are the differences, and are there more of these commands?

So, through typing several commands I've found that there's not only ls, but l and la too. There doesn't appear to be any man entries on Ubuntu 12.14. They all appear to do similar things with minor ...
2
votes
1answer
85 views

How to make an alias active in both current session and in .bashrc at same time?

I just found frequently I decide to add an alias for longer time use at the same time use it now. So I have to type the same thing twice, first in current bash session then .bashrc.
9
votes
2answers
529 views

using export in .bashrc

I have noticed in my .bashrc, that some lines have export in front, such as export HISTTIMEFORMAT="%b-%d %H:%M " ... export MYSQL_HISTFILE="/root/.mysql_history" whereas other have not, such as ...
7
votes
2answers
162 views

How can I create a local function in my bashrc?

My .bashrc had some code that was repetitive so I used a function to simplify it do_stuff() { local version=$1 export FOO_${version}_X="17" export FOO_${version}_Y="42" } do_stuff '5.1' ...
24
votes
3answers
543 views

Multicolored Grep

I'm trying to get each grep command to highlight it's results in a different color. I can do it manually with a line like this: ls -l GREP_COLORS='mt=01;32' grep c | GREP_COLORS='mt=01;31' grep o | ...
7
votes
3answers
123 views

In shell config scripts, how can I account for differences between coreutils on BSD compared to GNU?

Up until this month, my shell configs have been pretty simple (just a .bashrc or .bash_profile with some aliases mainly), but I have been refactoring it so I can get different behavior depending on ...
5
votes
2answers
99 views

How to report time and other information on all bash commands? [duplicate]

Most of the things I run in the terminal take a long time to compute and I would like to have bash output a time report at the end of every command entered into the terminal. Is there something I can ...
1
vote
2answers
191 views

.bashrc execute command after “/bin/bash --login”

I have this alias in my .bashrc: alias s='cd ~/Documents/projects/s && /bin/bash --login && rvm use ruby-1.9' How can I execute the right part after it enters login shell (/bin/bash ...
1
vote
1answer
319 views

How do I track down the source of a ssh login message?

I installed mailutils on my linux machine with Linux Mint 15 (basically Ubuntu 13.04). When I log in, I get the following: Welcome to Linux Mint 15 Olivia (GNU/Linux 3.8.0-32-generic i686) Welcome ...
2
votes
3answers
380 views

SSH parameter to ignore .bashrc script

I have a server which when it starts, a line in .bashrc executes the following command /bin/watch ~/checker.bash which as expected watches that command upon server start. I also have a client which ...
0
votes
1answer
34 views

Unexpected output after switch to root

Does somebody know, why I get -ne (probably param from echo from section of setting PROMPT_COMMAND line 23) after I switch to root? Here is my /etc/bashrc. Bash 3.2.51, OS X 10.9 ...
3
votes
1answer
96 views

Change the location of .bashrc

Is it possible to change the location of .bashrc from /home/orhanc/.bashrc to some other directory?
2
votes
2answers
732 views

HISTTIMEFORMAT modification. In /etc/bash.rc or /etc/profile? [duplicate]

I'd like to add the date/time to the output of the history command in CentOS/RHEL 6. I would like this to apply to all users on the machine by default. This itself is easy. It seems to just be a case ...
1
vote
1answer
176 views

Can't get golang working on Fedora 19

I've installed the golang package on Fedora 19. Go also needs the the GOPATH variable. I added to my ~/.bashrc: GOPATH=$HOME/.go/ But go env didn't see it (after the source ~/.bashrc): ...
1
vote
1answer
305 views

Aliases in scripts are not set globally

I know this sound really wierd but this is exactly what happens. I have my .profile and .bashrc file set up in a way that the .bash_aliases file gets executed (checked it with a echo). I do not get ...
4
votes
2answers
246 views

How do I execute a command on login for a system user with no home folder and no personal .bashrc file?

I set these users' home folders through the /etc/passwd file, but when they log in I would like them to activate a python virtualenv. If they had a personal .bashrc file, I'd just include the activate ...
3
votes
2answers
445 views

Bash doesn't read .bashrc unless manually started

bash won't source .bashrc from an interactive terminal unless I manually run bash from a terminal: $ bash or manually source it: $ source ./.bashrc or running: $ st -e bash Here's some useful ...
14
votes
2answers
334 views

bash_history: comment out dangerous commands: `#`

To prevent logging "dangerous" commands in bash history, I have added following line to my .bashrc file: HISTIGNORE='rm *:mv *:cp *:cat*>*:pv*>*' this works well, but it has a side effect: I ...
0
votes
0answers
175 views

Emacs alternate editor client server start

How can I get Emacs to start in server mode with the alternate editor? From this conversation, I was able to enable the server with the alternate editor. However, I just re-installed emacs and I am ...
3
votes
4answers
425 views

Bash aliases/functions and command line options

I want to set an alias to start nedit together with command line option -noautosave (due to text files up to 500MB). What seemed to be easy: alias nn="nedit -noautosave $1 &" just raises some ...
1
vote
2answers
314 views

Adding to PS1 in bash_profile

In my .bash_profile currently, I have PS1='\[\e[1;91m\][\u@\h \w]\$\[\e[0m\] '. I am trying to follow these commands to show branch name on iTerm terminal. I changed my PS1='\[\e[1;91m\][\u@\h ...