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Full Discussion: grep to generate a file
Top Forums UNIX for Dummies Questions & Answers grep to generate a file Post 302285761 by vgersh99 on Monday 9th of February 2009 03:35:08 PM
Old 02-09-2009
Quote:
Originally Posted by rushhour
Hi

I need help with the following problem.

I need to use grep to generate the file text1.txt which is identical to text.txt but contains no blank lines.

I am a complete novice at grep so any help will be great.

Thanks in advance.
depending on your definition of 'blank lines':
Code:
sed '/^$/d' myFile
nawk 'NF' myFile
grep -v '^$'  myFile

 

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LEARN ABOUT NETBSD

zgrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

BSD
								 December 28, 2003							       BSD
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