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

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5
votes
3answers
714 views

Run ssh login command without modifying remote .bashrc

We have a bunch of servers set up with set -o vi in their ~/.bashrc. It would be nice to be able to ssh into these boxes and automagically run set -o emacs as a timesave. I've seen a solution ...
0
votes
1answer
556 views

Bash script for Angstrom

I have written a bash script to automate cross-compiling an OpenCV program: echo "Compiling started for: $1" if [[ $1 == *.c ]] then gcc -ggdb `pkg-config --cflags opencv` -o `basename $1 .c` $1 ...
2
votes
1answer
144 views

How to link different (incompatible) libraries at runtime depending on program?

I have a number of legacy codes that need to be compiled with specific (and often conflicting) libraries. To be specific I have a program which can only be compiled with g77 and another program which ...
2
votes
3answers
301 views

What is the difference between ./script and . ./script? [duplicate]

Possible Duplicate: Using ‘.’ to execute files in bash I was trying to figure out how to export my environmental via script instead of changing my .bashrc file. I found this old useful ...
6
votes
3answers
2k views

Added bin directory to my path, can't execute commands in it with 'sudo command'

I made a bin directory in my home folder where I place all my scripts. Then in my .bashrc I added the following: export PATH=$PATH:/home/myusername/bin So I could access files I placed in there ...
11
votes
5answers
641 views

How to test for possible conflicts while using alias in bashrc?

Is there a simple way to list all the command conflicts that have occurred in the system due to the bashrc update involving alias commands? For example, someone writes alias ...
6
votes
2answers
7k views

What is the difference between interactive shells, login shells, non-login shell and their use cases? [duplicate]

Possible Duplicate: Difference between Login Shell and Non-Login Shell? I have been looking at /etc/profile. bash.bashrc to see how they are run, and notice that some are executed by ...
4
votes
2answers
6k views

Global bash_profile

I realize there are /etc/profile and /etc/bashrc files for setting global environment variables and maybe I'm just misunderstanding their purposes, but... Is their a global bash_profile file? This ...
4
votes
1answer
2k views

Problems with automatically starting screen on SSH login

I'm looking at http://taint.org/wk/RemoteLoginAutoScreen to setup my server so it autostarts a screen session when I login via SSH. I have added the following to my .bashrc: # Auto-screen ...
3
votes
2answers
125 views

Is there any way I can fit this into my ~/.bashrc as a function?

I just discovered this useful bit of code on this useful-looking website. #!/bin/sh exec tclsh "$0" ${1+"$@"} proc main {} { set lines [lrange [split [read stdin] \n] 0 end-1] set count ...
1
vote
0answers
412 views

How to use history commands with readonly PROMPT_COMMAND?

I'm sometimes logged in on a host which I do not control and where PROMPT_COMMAND is readonly. Is there some way to work around this to run history commands anyway, for example using PS1? I've tried ...
14
votes
3answers
7k views

How do I get rid of Cygwin's /cygdrive prefix in all paths?

I'm switching to Cygwin from the bash shell that ships with Git for Windows, and encountering a strange problem. Someone thought it would be a good idea to add /cygdrive/ to all paths, while I think ...
2
votes
3answers
483 views

When the lines of a file or directory get too long, upgrade to ls list format?

Is there a way I can do this? For example if a gets a long name like: i-have-names-that-are-too-long-to-describe/ i-have-names-that-are-too-long-to-describe-2/ ...
0
votes
2answers
2k views

How to assign user root rights?

I have Suse Linux on my desktop. So I am root and "normal" user. Frequently e.g. to start tomcat or install/remove a program I should use sudo or switch to super user. But I have defined many aliases ...
27
votes
3answers
11k views

What is the difference between ~/.profile, ~/.bashrc, ~/.bash_profile, ~/.gnomerc, /etc/bash_bashrc, /etc/screenrc …?

Answers to the questions on SO and askubuntu, along with poking through (and reading headers of) $HOME and /etc/, indicate a number of files that can be used to set environment variables, including: ...
3
votes
3answers
1k views

Issues with .bash_profile and terminal commands

I added some data to my .bash_profile to run two aliases ruby version 19 and the proper gems. As soon as I added the data I could not longer run any commands such as the MacPorts command port nor the ...
1
vote
1answer
135 views

What's the right way to reuse this one-liner?

I recently came up with the following one-liner: for f in *.mp3; do sha1sum $f | sed -r 's/[a-z]//g' | cut -c1-2 | awk '{ print ($1 >= 255) ? $1 - $1 + (1/3)*$1 : $1 }' | xargs -i id3v2 -T {} $f; ...
12
votes
4answers
3k views

How can I find a rogue alias declaration?

I'm trying to find where a specific alias has been declared. I've searched all the usual places I know to look for aliases: ~/.bashrc ~/.bash_profile /etc/bashrc /etc/profile With no luck. I know ...
0
votes
1answer
233 views

Fedora 7 server export in .bashrc not getting set [duplicate]

I'm trying to set the JAVA_HOME environment variable in my .bashrc but every time I log back in it gets unset again to its original value, below is my .bashrc file # .bashrc # User specific aliases ...
4
votes
2answers
6k views

Where is the system profile that gets sourced at login on CentOS 5.8?

In CentOS release 5.8 (Final), where is the bash system profile? Is it /etc/profile ? I've added the following to source my ~/.bashrc file but haven't had any luck as it fails. I know it fails ...
3
votes
1answer
237 views

Alias in .bashrc doesn't seem to accept an argument [duplicate]

Possible Duplicate: In Bash, when to alias, when to script, and when to write a function? I'm trying to setup an alias in my .bashrc file, but it's not working as expected. I have this ...
11
votes
4answers
882 views

How can I source the bashrc file every time I 'clear'

This might be a bad idea. The more I think about it the more I come to the realization that I probably shouldn't do it... but I've been trying and failing so I REALLY want to know how to do it, even ...
8
votes
7answers
7k views

Doing simple math on the command line using bash functions: $1 divided by $2 (using bc perhaps)

Sometimes I need to divide one number by another. It would be great if I could just define a bash function for this. So far, I am forced to use expressions like echo 'scale=25;65320/670' | bc but ...
8
votes
1answer
1k views

How to detect when a shell is owned by a remote SSH session?

My question is similar to this one, but I'm looking for something slightly different. I have a notebook PC that I use to access Linux machines on a network in two different scenarios: I have a ...
127
votes
4answers
218k views

How to correctly add a path to PATH?

I'm wondering where a new path has to be added to PATH environment variable. I know this is accomplished editing .bash_rc (for example), but it's not clear how to do this. This way: export ...
2
votes
0answers
323 views

Populate PS1 asynchronously

I have a few git svn related functions that see if I have to pull/push from/to the repository. My problem is that the functions I've wrote to gather these informations are too slow, I'd like to make ...
14
votes
2answers
1k views

.bashrc overwritten but still sourced — how can it be recovered?

Usually when I find a command I want to alias, I echo it to my .bashrc like so: [up button pressed to last command, then line edited so that it reads] $echo "command-i-just-did" >> ~/.bashrc ...
1
vote
1answer
2k views

.bashrc doesn't get executed

I have a user (non-root) which has a ~/.bashrc file with some aliases in it. But it doesn't look like the file is executed at log in time. If I do source ~/.bashrc then it does what it's supposed to. ...
5
votes
2answers
690 views

Can a home directory have both .cshrc and .bashrc files?

Or are they both not allowed at the same time?