Special character $$

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Top Forums UNIX for Beginners Questions & Answers Special character $$
# 1  
Old 02-15-2019

on ksh
What does the following do?
grep -v "toolbox" $home_oracle/.profile >$home_oracle/.profile.$$


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Mod Comment Please use CODE tags as required by forum rules!

Last edited by RudiC; 02-15-2019 at 08:43 AM.. Reason: Added CODE tags.
# 2  
Old 02-15-2019
Hello big123456,

$$ is the process ID (PID) of the script itself.
$BASHPID is the process ID of the current instance of Bash. This is not the same as the $$ variable, but it often gives the same result
Reference URL is Internal Variables

R. Singh
# 3  
Old 02-15-2019
# 4  
Old 02-15-2019
Originally Posted by big123456
I am surprised that after 293 posts in this forums you are NOT aware of THANKS system here. We thank here to all helpful posts by hitting THANKS button on left of each post, cheers and happy learning.

R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
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