[SOLVED] I need help with creating environment variable in the .bashrc file....

BMan8577 · 04-16-2011, 10:57 PM

Ok, 1. I am trying to change the HISTSIZE environment variable to resolve to my process id. How do I change that variable successfully? 2. How do I create a CLICHE environment variable? 3. How do I redirect the output of the date command into a file in the home directory? Also how do you identify the process id and parent's process id?

sibe · 04-16-2011, 11:28 PM

Hi,

1. In your ~/.bash_profile, add these :

export HISTSIZE=1000
export HISTFILESIZE=10000

HISTSIZE holds the number of events during a session.
HISTFILESIZE holds the number between sessions. This var determines the number of lines of history saved in history list file (default to ~/.bash_history).

Type source ~/.bash_profile at the prompt to make it effective wihout logout-login. Check with command env | grep HIST.

2. What dou you mean by CLICHE environment variable?

3. date > ~/today.txt

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sibe

BMan8577 · 04-16-2011, 11:43 PM

I have to create an environment variable CLICHE in which I am to resolve the message "that is how the cookie crumbles". So for the output would it be CLICHE="that is how the cookie crumbles" correct? I am a beginner at the Linux OS in my class which is the basic Redhat Computing Essentials and I am more of a kinesthetic learner...so if I get the right help I need I would be able to understand Linux a lot better...lol.

BMan8577 · 04-16-2011, 11:44 PM

And I give you all the credit for helping me with my questions thanks. I really appreciate it.

sibe · 04-17-2011, 12:13 AM

Quote:

Originally Posted by BMan8577

So for the output would it be CLICHE="that is how the cookie crumbles" correct?

Correct.
To make it persistent, put your var in ~/.bash_profile; export var_name="value here".

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sibe

chrism01 · 04-17-2011, 09:00 PM

Try bookmarking these links
http://rute.2038bug.com/index.html.gz
http://tldp.org/LDP/Bash-Beginners-G...tml/index.html
http://www.tldp.org/LDP/abs/html/