Shell special Variables

Tag: Process Using Div string shell script

$0: Script Name $1-$9: location parameter #2-#9 $ {10}: location parameter #10 $ #: Number of location parameters "$ *": all location parameters (as a single string) "[email protected]": All location parameters (each as an independent string) $ {#*}: number of command line parameters passed to the script $ {#@}: Number of command line parameters passed to the script $? : Return value $: script process ID (PID) $-: Flag passed to the script (use set) $ _: last parameter of the previous command $! : ID of the process (PID) of the last job running in the background)