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Full Discussion: Need to remove multiple text from a single file
Top Forums Shell Programming and Scripting Need to remove multiple text from a single file Post 302382937 by TonyFullerMalv on Sunday 27th of December 2009 09:38:39 AM
Old 12-27-2009
awk is usually far more elegant for this sort of thing but I think you answered your own question, you can of course use multiple "grep -v" in one go, e.g.:
Code:
$ grep -v A inputfile | grep -v F | grep -v K | grep -v Y | grep -v U | grep -v P | \
  grep -v B | grep -v S | grep -v D > outputfile

If each record starts with the letter concerned then using:
Code:
grep -v "^A"

for each "grep -v" would be better, i.e. remove all lines that start with a capital A.
 

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LEARN ABOUT BSD

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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