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Full Discussion: Grep character classes '\w' '\d'
Top Forums UNIX for Advanced & Expert Users Grep character classes '\w' '\d' Post 302399425 by glev2005 on Sunday 28th of February 2010 09:40:11 PM
Old 02-28-2010
Wow, even after going back and looking for it I couldnt find the -p switch, I actually had to grep the grep manual for it! Thanks, that's what I was looking for!

---------- Post updated at 09:37 PM ---------- Previous update was at 12:53 AM ----------

I got some errors using the -P switch, but I found the \w character class works well when double quoted and with the -E switch for extended regex.

---------- Post updated at 09:40 PM ---------- Previous update was at 09:37 PM ----------

Code:
:~ localadmin$ echo "Hello 123 abc <># .. asdf" |grep -Eo "\w+"
Hello
123
abc
asdf


STLM011:~ localadmin$ echo "Hello 123 abc <># .. asdf" |grep -o "\w+"
STLM011:~ localadmin$ 

STLM011:~ localadmin$ echo "Hello 123 abc <># .. asdf" |grep -oE \w+
STLM011:~ localadmin$ 

STLM011:~ localadmin$ echo "Hello 123 abc <># .. asdf" |grep -oE "\W+"
 
 
 <># .. 
STLM011:~ localadmin$

 

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LEARN ABOUT PHP

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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