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Full Discussion: Grep problem
Top Forums UNIX for Dummies Questions & Answers Grep problem Post 302151746 by felixwhoals on Monday 17th of December 2007 06:15:32 AM
Old 12-17-2007
Grep problem

Hi there, this is a very simple question.

When I do grep -c "PWD" filename, I get 5. This means the filename contains 5 lines of "PWD" occurence.

I tried to assign to a variable. int= grep -c "PWD" filename

When I typed echo $int
The output:
5

[unix..]
I get an empty line space. Now I cannot do any arithmetic operations because $int will always be 0 rather than 5.
How can I solve this problem?

Last edited by felixwhoals; 12-17-2007 at 07:26 AM..
 

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PWD(1)							    BSD General Commands Manual 						    PWD(1)

NAME
pwd -- return working directory name SYNOPSIS
pwd [-L | -P] DESCRIPTION
The pwd utility writes the absolute pathname of the current working directory to the standard output. Some shells may provide a builtin pwd command which is similar or identical to this utility. Consult the builtin(1) manual page. The options are as follows: -L Display the logical current working directory. -P Display the physical current working directory (all symbolic links resolved). If no options are specified, the -L option is assumed. ENVIRONMENT
Environment variables used by pwd: PWD Logical current working directory. EXIT STATUS
The pwd utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3) STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BUGS
In csh(1) the command dirs is always faster because it is built into that shell. However, it can give a different answer in the rare case that the current directory or a containing directory was moved after the shell descended into it. The -L option does not work unless the PWD environment variable is exported by the shell. BSD
April 12, 2003 BSD
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