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Using #! /bin/sh in Shell scripts

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# 1  
Old 12-01-2006
Using #! /bin/sh in Shell scripts
Hi All,

What does #! /bin/sh mean in a shell script? Is it mandatory to include in a shell script? I'm able to execute the shell script without it.

Any help on this would be appreciated.
sumesh.abraham
# 2  
Old 12-01-2006
it actually tells the script to which interpreter to refer. As you know, bash shell has some specific functions that other shell does not have and vice-versa. Same way is for perl, python and other languages.
# 3  
Old 12-01-2006
Thanks for the info. I still have doubts. If this information is not provided, how the path of the interpreter is assumed?
sumesh.abraham
# 4  
Old 12-01-2006
Do people ever read the FAQ's or even use the search feature ? Smilie

See https://www.unix.com/showthread.php?t=7077
This User Gave Thanks to vino For This Post:
# 5  
Old 12-01-2006
Right. You should do what vino says before asking. Anyway, If you don't specify that information, the user's default shell will be used.
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