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Full Discussion: sed command working different in linux environment.
Top Forums Shell Programming and Scripting sed command working different in linux environment. Post 302576270 by vee_789 on Thursday 24th of November 2011 11:35:36 PM
Old 11-25-2011
sed command working different in linux environment.
Hi
I tried running the code
Code:
scrname=`whence $0 | sed -e 's/\.\///g'`

where $0 is substituted by cm_dsjobrun.sh
in unix env then the value it returns me is

SCRNAME=/data/ds/dpr_ebicm_uat/etl/cm3_0/scripts/shell/cm_dsjobrun.sh

whereas i ran the same code on linux env

The value its returning me as in scrname as ''

I am not able to figure out why this is happening, could you all please help me. What changes should i make in the command so that it will return me the same output as it is giving in unix enviornment i.e .
Code:
SCRNAME=/data/ds/dpr_ebicm_uat/etl/cm3_0/scripts/shell/cm_dsjobrun.sh

Please help

Thanks.

---------- Post updated at 07:09 AM ---------- Previous update was at 06:45 AM ----------

I read on the whence command one point i would like to share is it detects it detects commands and aliases, and searches your path.
So my script path is searched properly in unix env... whereas this is not happening in the linux enviornment.
Could you all please help me in modifying the command so that i get the exact path of my script.

---------- Post updated at 11:35 PM ---------- Previous update was at 07:09 AM ----------

HI

To get the path in linux i tried
Code:
scrname={PWD}/$0

Where $0 will be script name.

My question is if i am using PWD instaed of whence in linux what difference it can cause to my script.

Thanks
 

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LEARN ABOUT CENTOS

paps

PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME

       paps - UTF-8 to PostScript converter using Pango

SYNOPSIS

       paps [options] files...

DESCRIPTION

       paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves
       through the pango ft2 backend.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       --landscape
	      Landscape output. Default is portrait.

       --columns=cl
	      Number of columns output. Default is 1.

       --font=desc
	      Set the font description. Default is Monospace 12.

       --rtl  Do rtl layout.

       --paper ps
	      Choose paper size. Known paper sizes are legal, letter, a4. Default is A4.

       --bottom-margin=bm
	      Set bottom margin in postscript points (1/72 inch). Default is 36.

       --top-margin=tm
	      Set top margin. Default is 36.

       --left-margin=lm
	      Set left margin. Default is 36.

       --right-margin=rm
	      Set right margin. Default is 36.

       --help Show summary of options.

       --header
	      Draw page header for each page.

       --markup
	      Interpret the text as pango markup.

       --encoding=ENCODING
	      Assume the documentation encoding is ENCODING.

       --lpi  Set the lines per inch. This determines the line spacing.

       --cpi  Set the characters per inch. This is an alternative method of specifying the font size.

       --stretch-chars
	      Indicates  that  characters  should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops
	      behaviour.

AUTHOR

       paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>.

       This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others).

								  April  17, 2006							   PAPS(1)
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