How to check the number of terminals open from inside a shell script

[Mark Liggett]

Hi Sumatheja,

I'm guessing you want a script to run only once (did say whether it was per user).  You could add your script to the .bashrc file - this way the script would run once when the user logs on.  Alternatively run the script and export an environment variable - then check it using an if statement before you run the script again, eg;

if [ -n "$script-has-run-envar" ]; then
    <source_script>
    script-has-run-envar="Yes"
    export $script-has-run-envar
fi

Check the lifecycle of the environment variable is what you need though.

Mark



On 29/10/2010 12:26, "sumatheja" <sumatheja at gmail.com> wrote:

Hi All,
        I'm can anyone let me know if there's some variable holding
the value of the total number of terminals open. I have a requirement
where i need to execute some script only first time a terminal is
opened. I feel this is not the right place to post this but will be
glad if someone can help me out.

--
cheers
Sumatheja Dasararaju
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