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Full Discussion: Egrep ERE to find null
Top Forums Shell Programming and Scripting Egrep ERE to find null Post 302801899 by sydox on Thursday 2nd of May 2013 04:28:23 PM
Old 05-02-2013
Thanks!!

This is what I ended up using that works
Code:
while [`echo $jobname | egrep '^[^[:blank:]]+$' | wc -l -gt 0 ]; do

MadeInGermany: I'm unaware of what the "x" in your example does. I'm not asking for a long winded explanation, although you may. If you don't mind give me a viable resource where I may read up on that functionality!

balaisuri: thanks for helping. I did try the ERE of "^$|^ *$" and it didn't work at least not on my system. it catches null but doesn't catch a line with a space.

Corona688: Thanks for the many responses. I'll have to wait till I have more time to go through your methods.
 

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extract_font_range(3alleg4)					  Allegro manual				       extract_font_range(3alleg4)

NAME
extract_font_range - Extracts a range of characters from a font. Allegro game programming library. SYNOPSIS
#include <allegro.h> FONT *extract_font_range(FONT *f, int begin, int end) DESCRIPTION
This function extracts a character range from a font and returns a new font that contains only the range of characters selected by this function. You can pass -1 for either the lower or upper bound if you want to select all characters from the start or to the end of the font. Example: FONT *myfont; FONT *capitals; FONT *fontcopy; ... /* Create a font of only capital letters */ capitals = extract_font_range(myfont, 'A', 'Z'); /* Create a copy of the font */ fontcopy = extract_font_range(myfont, -1, -1); ... destroy_font(capitals); destroy_font(fontcopy); RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it to avoid memory leaks. SEE ALSO
get_font_range_begin(3alleg4), get_font_range_end(3alleg4), merge_fonts(3alleg4), transpose_font(3alleg4), exfont(3alleg4) Allegro version 4.4.2 extract_font_range(3alleg4)
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