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Full Discussion: Weird Exit Status of shell script
Top Forums Shell Programming and Scripting Weird Exit Status of shell script Post 302810455 by fpmurphy on Tuesday 21st of May 2013 10:14:01 PM
Old 05-21-2013
It is due to the fact that you are using a pipeline.

To see the difference, change your code to:
Code:
#!/bin/bash

if [ $# -lt 1 ] ; then #Check there is enough command line parameters.
        exit 1
fi

while read i
do
        `[ -e $i ]`
        if [ $? != 0 ] ; then
             exit 1
        fi
done < $1

exit 0

By the way, your if expression would be better written as:
Code:
while read i
do
     if  [ ! -e $i ]
     then
         exit 1
     fi
done < $1

This User Gave Thanks to fpmurphy For This Post:
Ray Sun
 

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LEARN ABOUT OPENSOLARIS

_exithandle

exit(3C)						   Standard C Library Functions 						  exit(3C)

NAME

       exit, _exithandle - terminate process

SYNOPSIS

       #include <stdlib.h>

       void exit(int status);

       void _exithandle(void);

DESCRIPTION

       The exit() function terminates a process by calling first _exithandle() and then _exit() (see exit(2)).

       The  _exithandle() function calls any functions registered through the atexit(3C) function in the reverse order of their registration. This
       action includes executing all finalization code from the .fini sections of all objects that are part of the process.

       The _exithandle() function is intended for use only with _exit(), and allows for specialized processing such as dldump(3C) to be performed.
       Normal process execution should not be continued after a call to _exithandle() has occurred, as internal data structures may have been torn
       down due to atexit() or .fini processing.

       The symbols EXIT_SUCCESS and EXIT_FAILURE are defined in the header <stdlib.h> and may be used as the value of status to indicate  success-
       ful or unsuccessful termination, respectively.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       exit(2), atexit(3C), dldump(3C), attributes(5), standards(5)

SunOS 5.11							    1 Mar 2004								  exit(3C)
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