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Full Discussion: Strings with Special chars in IF condition
Top Forums UNIX for Dummies Questions & Answers Strings with Special chars in IF condition Post 302401468 by hooaamai on Saturday 6th of March 2010 08:26:24 AM
Old 03-06-2010
Yes. It's working if i remove the quotes. Thank you.

Additionally, I had to redirect the err out of if statement to /dev/null.


But, if I get the same value in the variable for another command, then how can i convert the variable "fax" into a string variable??


Code:
 
#!/bin/ksh
fax= `grep abcd file1.dat | cut -c1-12 `

if [  -z  ${fax} ]; then
        fax_no="000-000-0000"
else
        fax_no=$fax
fi
echo $fax_no

Lets assume that "grep abcd file1.dat | cut -c1-12" returns the value "123-456-7890". The code is not working in this case.
Last edited by hooaamai; 03-06-2010 at 09:27 AM.. Reason: wrong formatting
hooaamai
 

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LEARN ABOUT LINUX

g3topbm

g3topbm(1)						      General Commands Manual							g3topbm(1)

NAME

       g3topbm - convert a Group 3 fax file into a portable bitmap

SYNOPSIS

       g3topbm [-kludge] [-reversebits] [-stretch] [g3file]

DESCRIPTION

       Reads a Group 3 fax file as input.  Produces a portable bitmap as output.

OPTIONS

       -kludge
	      Tells g3topbm to ignore the first few lines of the file; sometimes fax files have some junk at the beginning.

       -reversebits
	      Tells  g3topbm to interpret bits least-significant first, instead of the default most-significant first.	Apparently some fax modems
	      do it one way and others do it the other way.  If you get a whole bunch of "bad code word" messages, try using this flag.

       -stretch
	      Tells g3topbm to stretch the image vertically by duplicating each row.  This is for the low-quality transmission mode.

       All flags can be abbreviated to their shortest unique prefix.

REFERENCES

       The standard for Group 3 fax is defined in CCITT Recommendation T.4.

BUGS

       Probably.

SEE ALSO

       pbmtog3(1), pbm(5)

AUTHOR

       Copyright (C) 1989 by Paul Haeberli <paul@manray.sgi.com>.

								  02 October 1989							g3topbm(1)
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