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Full Discussion: Delete line in text file
Top Forums UNIX for Dummies Questions & Answers Delete line in text file Post 82339 by vino on Wednesday 31st of August 2005 03:15:26 AM
Old 08-31-2005
When you do that, you will not see lines containing the $keyword on the terminal. But that wouldnt delete the keyword from the file. Because you are not redirecting the output to a file.

If you need the change to be permanent, then use

Code:
sed -e '/$keyword/d' file.txt >file.txt.new

If the keyword contains spaces and special characteres, you need to put the -e script within double quotes.

Code:
sed -e "/$keyword/d" file.txt >file.txt.new

Vino
 

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LEARN ABOUT ULTRIX

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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