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Full Discussion: Head command queries
Top Forums Shell Programming and Scripting Head command queries Post 302948053 by RudiC on Thursday 25th of June 2015 06:47:55 AM
Old 06-25-2015
You can achieve the same result with (recent) bash only:
Code:
head -1 file
tail -n+2 file | sort -t, -k1,2 -k3nr |
  while IFS=, read A C R X
    do [ "$TMP" != "$A,$C" ] && CNT=2
       [ $(( CNT-- )) -gt 0 ] && { echo $A,$C,$R      
                                   TMP="$A,$C"
                                 } 
    done

 

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SHTOOL-FIXPERM.TMP(1)					      GNU Portable Shell Tool					     SHTOOL-FIXPERM.TMP(1)

NAME
shtool-fixperm - GNU shtool file permission fixing command SYNOPSIS
shtool fixperm [-v|--verbose] [-t|--trace] path [path ...] DESCRIPTION
shtool fixperm fixes file permissions inside a source tree under path by cleaning up the permission bits. It determines the cleaned up permission from the already set bits. It is intended to be run before a tarball is rolled (usually with shtool tarball) out of a source tree. The trick is that this is more convenient than having to set the permissions manually or by using a large file list. OPTIONS
The following command line options are available. -v, --verbose Display some processing information. -t, --trace Enable the output of the essential shell commands which are executed. EXAMPLE
# Makefile.in dist: shtool fixperm -v * ... HISTORY
The GNU shtool fixperm command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1996 for OSSP eperl. It was later taken over into GNU shtool. SEE ALSO
shtool(1), chmod(1). 18-Jul-2008 shtool 2.0.8 SHTOOL-FIXPERM.TMP(1)
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