Shell Programming and Scripting

HI
I have a following code:

Code:

CM_PROJHOME_DIR=`echo ${SCRNAME} | awk '{FS="/"; p=NF-5; for (i=1; i<= p ; i++) t=t$i"/"; print t}'`

where

Code:

SCRNAME=`whence $0 | sed -e 's/\.\///g'`

I need to modify the code to work in linux and also the interpretation like what is the code exactly doing.
What does the whence command do, i fired in linux it says command not found.

Thanks

FS issue is the same as last time.

whence.

I executed my script which contained this code

Code:

SCRNAME=`whence $0 | sed -e 's/\.\///g'`

And found that $0 is substitued by the script name i.e
whence cm_dsjobrun.sh and SCRNAME contains this value as SCRNAME=''
Due to which its giving me wrong result.
and after this the following code is executed

Code:

awk -F/ '{p=NF-5; for (i=1; i<= p ; i++) t=t$i"/" ; print t}'

Can you please explain me the following code and why a blank value is going in the variable SCRNAME. Please answer my full question.

Read up on (g)awk, maybe?

Seriously, this is a fairly simple piece of code, and you have a lot of topics asking similar questions. There's no point in us doing your job for you.

ok i will try it myself.