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Full Discussion: Passing Arguments in Shell Scripts
Top Forums Shell Programming and Scripting Passing Arguments in Shell Scripts Post 302292750 by cfajohnson on Sunday 1st of March 2009 04:15:12 PM
Old 03-01-2009
Quote:
Originally Posted by kev_1234
Right following our conversation:

This is a if statement I did which doesn't seem to work?

Code:
if [ -s /bin/bash ]
then 
     echo "file /bin/bash exists"
else
     echo "file /bin/bash exists"
fi

If I do a search ./test -s mylist1.html

it displays files exists

but the if I type ./test -s mylist14.html

still says the same

1. You tell it to print the same thing whether the test succeeds or fails.

2. You don't use the command-line argument anywhere. You are always testing for /bin/bash.

Code:
case $1 in
     -s) searchstring=$2 ;;
esac

if [ -s "$searchstring" ]
then
  echo  "file $searchstring exists"
else
  echo  "file $searchstring does not exist"
fi

 

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LEARN ABOUT OPENSOLARIS

setusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

	 /bin/bash		    /bin/csh
	 /bin/jsh		    /bin/ksh
	 /bin/ksh93		    /bin/pfcsh
	 /bin/pfksh		    /bin/pfsh
	 /bin/sh		    /bin/tcsh
	 /bin/zsh		    /sbin/jsh
	 /sbin/pfsh		    /sbin/sh
	 /usr/bin/bash		    /usr/bin/csh
	 /usr/bin/jsh		    /usr/bin/ksh
	 /usr/bin/ksh93 	    /usr/bin/pfcsh
	 /usr/bin/pfksh 	    /usr/bin/pfsh
	 /usr/bin/sh		    /usr/bin/tcsh
	 /usr/bin/zsh		    /usr/sfw/bin/zsh
	 /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

NOTES

       Restricted shells should not be listed in /etc/shells.

SunOS 5.11							    1 Nov 2007							  getusershell(3C)
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