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#1 (permalink)

07-08-2005

vino

Supporter (in vino veritas)

Join Date: Feb 2005

Location: Bangalore, India

Posts: 2,798

shell magic number with a -

In one of our internal scripts (unix.run), I have noticed that the following shebang.

Code:

#!/bin/sh -
for i in test1 test2 test3 ; do
.
.
.

Any idea what the - in the magic number stands for ?

And what impact does it have on the script ?

Continuing on the same script, I have the following for unix.run

Code:

ls -l unix.run
-rw-------    1 XXXXXX g900          187 Jul  8 04:29 unix.run

If I do a

Code:

./unix.run

it says 'Permission denied'

But if I run it as,

Code:

sh unix.run

it works well.

Why the difference in behaviour between ./unix.run and sh unix.run?

Shouldn't it always say 'Permision denied' in both the cases ?

Any inputs/pointers on these two points, highly appreciated.

Thanks,
Vino

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