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Top Forums Shell Programming and Scripting Getting error in command line arguments Post 302181442 by sunitachoudhury on Thursday 3rd of April 2008 02:29:29 AM
Old 04-03-2008
Getting error in command line arguments

Hi,

When i am running the following script 1.sh (without giving the command line arguments) then i am getting the following error.

if [ $1 = dm5admin ]
then
echo "UID and PWD are correct"
elif [ $1 != dm5admin ]
then
echo "Either UID or PWD is wrong. Please check your UID and PWD"
else
echo "UID and PWD can't be blank"
exit;
fi


by running this 1.sh script i am getting the following error.

>1.sh
./1.sh: [: =: unary operator expected
./1.sh: [: !=: unary operator expected
UID and PWD can't be blank


Can anybody rectify this?????

Thanks.
 

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PWD(1)							    BSD General Commands Manual 						    PWD(1)

NAME
pwd -- return working directory name SYNOPSIS
pwd [-L | -P] DESCRIPTION
The pwd utility writes the absolute pathname of the current working directory to the standard output. Some shells may provide a builtin pwd command which is similar or identical to this utility. Consult the builtin(1) manual page. The options are as follows: -L Display the logical current working directory. -P Display the physical current working directory (all symbolic links resolved). If no options are specified, the -L option is assumed. ENVIRONMENT
Environment variables used by pwd: PWD Logical current working directory. EXIT STATUS
The pwd utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3) STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BUGS
In csh(1) the command dirs is always faster because it is built into that shell. However, it can give a different answer in the rare case that the current directory or a containing directory was moved after the shell descended into it. The -L option does not work unless the PWD environment variable is exported by the shell. BSD
April 12, 2003 BSD
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