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Full Discussion: Recursive find / grep within a file / count of a string
Top Forums Shell Programming and Scripting Recursive find / grep within a file / count of a string Post 302738621 by RudiC on Sunday 2nd of December 2012 05:57:08 AM
Old 12-02-2012
Thank you, Don, for commenting on my proposal.
Quote:
Originally Posted by Don Cragun
. . . Since no pathname operands are given to awk, all of the filenames printed by awk will be an empty string.
At least with the combination of find and awk implemented on my linux system, there's a full path listing avalable, including filenames containing spaces:
Code:
find /var/log -iname \*.log -print0 |xargs -0 awk  -F\| 'FNR==1 {print FILENAME, NF}'
/var/log/auth.log 1
/var/log/dist-upgrade/history.log 0
. . .
/var/log/x y.log 3
/var/log/kern.log 1

Quote:
And, if there are x field separators on a line, there are x+1 fields.
Yes. Still I thought the number of fields to be more relevant than the number of separators. Might have been premature.

Quote:
Code:
find . -name 'FILENAME.TXT' -exec awk -F'|' 'FNR==1{printf("%s %d\n", FILENAME, NF-1)}' {} +

Works, and satisfies the standards, but:
Code:
time find . . . -print0 |xargs -0 awk  -F\| '. . .'
real    0m0.034s
time find . . . -exec awk -F\| '. . .' {} \;
real    0m0.208s

Quote:
Some implementations of awk have a nextfile statement
Special thanks for this; I was looking for that or an equivalent; unfortunately not available on my system.
 

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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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