value of $$

06-15-2004

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value of $$

Hi,
I have a shell (k-shell) program running which has the following:
spool /tmp/load.log.$$

--can any one tell me what's the value of this $$
Thanks

caprikar

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06-15-2004

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As far as I can tell, the value of $$ is your current process id.

RTM

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06-15-2004

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Yeah $$ is the pid of the shell. The reason why people use stuff like /tmp/load.log.$$ is to ensure that if two copies of the script run at the same time, they each get a separate log file.

Perderabo

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UNIX for Advanced & Expert Users

value of $$