sh -c in shebang

Asked Aug 02 '19 at 12:26

Active Aug 02 '19 at 12:45

Viewed 572 times

I have a file test with the content

#!/bin/sh -c 'echo was called with $0'

I if i execute it it with ./test, i would expect the OS to effectively execute

sh -c 'echo was called with $0' ./test

which to my understanding should result in was called with ./test.

However, i get the error message

/bin/sh: 0: Illegal option -

What is the reason for this Error?

please note that i understand that there are easier ways to print the arguments, the echo part is a stand-in for unrelated and more complex things.

Added information: cat -E test gives me

#!/bin/sh -c 'echo was called with $0'$
$

edited Aug 02 '19 at 12:45

asked Aug 02 '19 at 12:26

keppla

@msp9011 i tested it in 2 docker containers: ubuntu:latest and alpine:latest. What is your setup? – keppla Aug 02 '19 at 12:38
if i replace /bin/sh with /bin/echo, it prints the rest of the shebang, since that works, i guess it's nothing general like lineendings but something sh-specific – keppla Aug 02 '19 at 12:47
1

Linux only supports one argument on the hashbang line, see Multiple arguments in shebang, Shebang line with #!/usr/bin/env command --argument fails on Linux and then there's Sven Mascheck's page about hashbang differences in different systems, with more information you ever want to know. – ilkkachu Aug 02 '19 at 13:22

0 Answers0