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fedir/bash_args.md

Last active August 29, 2015 13:57
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bash_args.md 
$$  The PID number of the process executing the shell. 
$?  Exit status variable. 
$0  The name of the command you used to call a program. 
$1  The first argument on the command line. 
$2  The second argument on the command line. 
$n  The nth argument on the command line. 
$*  All the arguments on the command line. 
$#  The number of command line arguments.
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