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Full Discussion: File Processing: Handling spaces in a line
Top Forums UNIX for Advanced & Expert Users File Processing: Handling spaces in a line Post 302874517 by rbatte1 on Friday 15th of November 2013 11:39:17 AM
Old 11-15-2013
As a first query, could we get rid of the sed part? It more simply written as:-egrep -v "^$|^#" $file

More importantly, do you have a file that contains your environment variables you wish to set? Does it look like this:-
Code:
# My variables
# Some other comment

WHOA1=Hello
WHOA2=Bye
Other=stuff

If so, you can simply source in the file (or an extract of it) rather than worrying about the eval and the very real risks that creates.

In your script, you would simply have:-
Code:
. file

If you just need the selection of variables starting WHOA, you could easily:-
Code:
grep "^WHOA" $file > /tmp/myenv.$$
. /tmp/myenv.$$
rm /tmp/myenv.$$



Does this help, or have I missed the point?


I would like to know more about where Corona688 is leading us, especially the here document bit. I'm a little puzzled and it would be nice to understand the suggestion.


Robin
Liverpool/Blackburn
UK
Last edited by rbatte1; 11-15-2013 at 12:41 PM.. Reason: Spling correxions
This User Gave Thanks to rbatte1 For This Post:
baanprog
 

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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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