Tagged Questions
0
votes
2answers
131 views
Trying to set JAVA_HOME in ~/.bashrc
I have added this line at the end of ~/.bashrc file.
export JAVA_HOME=/usr/java/jdk1.5.0_07/bin/java
But when I do echo $JAVA_HOME I don't get anything as output, I expected ...
0
votes
1answer
67 views
Shell script executing in the terminal but not from shell script file [closed]
Possible Duplicate:
How can I make variables “exported” in a bash script stick around?
I have a problem with executing script from file. When I type in command line
...
4
votes
2answers
161 views
In zsh how can I list all the environment variables?
I want to get a list of all environment variables (shell variables? exported variables?) and their values at a given time, in zsh.
What is the proper way to do this?
4
votes
1answer
114 views
How can I make variables “exported” in a bash script stick around?
I have multiple Amazon EC2 accounts and want to quickly be able to switch variables, such as $EC2_HOME, using a script.
I have have a shell script set up like this:
#!/bin/sh
export ...
1
vote
2answers
83 views
What are the key differences between $ENV_VAR and `env_var`?
It's a quite simple asked question I think:
What are the key differences between using environment variables just like
$HOSTNAME and `hostname`. Where is which appropriate, why are there two ...
1
vote
2answers
642 views
How can I run a cron command with existing environmental variables?
How can I run a cron command with existing environmental variables?
If I am at a shell prompt I can type echo $ORACLE_HOME and get a path. This is one of my environmental variables that gets set in ...
2
votes
0answers
72 views
How to get environment variables to persist across login? [closed]
Possible Duplicate:
How do I set a user environment variable? (permanently, not session)
For a project I'm working on, I have a service that runs at startup which calls a script to set ...
2
votes
4answers
578 views
Run script in a non interactive shell?
I have a cron job that is running a script. When I run the script via an interactive shell (ssh'ed to bash) it works fine. When the script runs by itself via cron it fails.
My guess is that it is ...
2
votes
2answers
340 views
How to get a clean environment in a ksh shell?
I need to get rid of all the environment variables in a Ksh shell. I can fork a new instance, but it will inevitably source some init files (as far as I know .profile, .kshrc). Is there a way to ...
5
votes
3answers
133 views
For a same unix or linux user, different sets of environment variables
I'm using tcsh, and for a specific project every member of my team connects to a server with the same user. (This is something we cannot change).
The situation arises because I want to have some ...
1
vote
1answer
135 views
pass 1 environment variable using sudo
Is this a correct way for passing an environment variable in sudo ?
sudo -u www-data -b env FOOBAR="foobar" /home/user/folder/daemon
4
votes
4answers
162 views
Last failed command in bash
The $? variable holds the exit status of last run command. Is there a variable that holds last run command itself?
4
votes
2answers
84 views
Why do newlines mess up my while condition?
I have a while loop that allows setting variables when written one way but does not allow it when written another way. Why is that? This prints var as 1234 and does not print var2
#!/bin/bash
...
3
votes
2answers
207 views
In `while IFS= read..`, why does IFS have no effect?
I might have something absolutely wrong, but it looks convincing to me, that setting IFS as one of the commands in the pre-do/done list has absolutely no effect.
The outer IFS (outside the while ...
8
votes
3answers
1k views
Why is `while IFS= read` used so often, instead of `IFS=; while read..`?
It seems that normal practice would put the setting of IFS outside the while loop in order to not repeat setting it for each iteration... Is this just a habitual "monkey see, monkey do" style, as it ...
