Shell Programming and Scripting

Hi All ,

Please help me in understanding why i am getting error for the below script in LINUX, but the same script will work perfectly in AIX unix.

Script Name:try.ksh

#!/bin/ksh

echo "$0 \n"
MYPWD=$(pwd $(dirname $0))
echo " $MYPWD \n"

O/P in LINUX OS:
./try.ksh
./try.ksh[4]: pwd: too many arguments


O/P in AIX OS

./try.ksh
/exec/applis/74epur/current

Thanks In Advance
Sudhir

Is your Korn shell on Linux really Korn? I haven't played with Linux for a while, but the Bourne shell (/bin/sh) used to be a link to Bash - is it still? Is the same true for ksh?

If you want to track the directory the shell is running in, here's my standard code chunk...

Code:

dirname=`dirname $0`
[ "$dirname" = "." ] && dirname=`pwd`

Hopefully this this shell neutral code!

The problem is not with ksh per se, it is with your code. Passing a command line argument to pwd is invalid.

Code:

MYPWD=$(pwd $(dirname $0))

Here is an example

Code:

$ pwd .
pwd .
ksh: pwd: too many arguments
$

Some shells silently ignore the error

Code:

bash-3.2$ pwd .
/home/fpmurphy
bash-3.2$ pwd /opt
/home/fpmurphy
bash-3.2$