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Full Discussion: Find out match characters on all lines
Top Forums Shell Programming and Scripting Find out match characters on all lines Post 302705181 by cwzkevin on Monday 24th of September 2012 11:14:41 AM
Old 09-24-2012
Quote:
Originally Posted by pamu
For your second requirement..

assuming you have same number of characters per line..

try this..
Code:
sed -e 's/.\{1\}/& /g' file | awk '{ for(i=1;i<=NF;i++){a[NR,i]=$i;max=NF}maN=NR;}END{
for (i=1;i<=max;i++){
k=0;p="";
for (j=1;j<=maN;j++){
if(p){if(p != a[j,i]){k=1}}else{p=a[j,i];};
}
if(k != 1 && p != "-"){ print p;}
}
}'

Thanks, your code works on my example. But it outputs the matching char one at a line. I need to do something like
Code:
 | tr -d '\n'

to remove the newline of every line to get it to print out onto one line only. Thanks, I need to test it on my real file. Should work. Thanks.
 

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shtool-table

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

NAME

       shtool-table - GNU shtool pretty-print a field-separated list

SYNOPSIS

       shtool table [-F|--field-sep sep] [-w|--width width] [-c|--columns cols] [-s|--strip strip] strsepstr...

DESCRIPTION

       This pretty-prints a list of strings as a table.

OPTIONS

       The following command line options are available.

       -F, --field-sep sep
	   Separate columns using sep. Default is ":".

       -w, --width width
	   Width of each column. Default is 15 characters.

       -c, --columns cols
	   Number of columns. Default is 3.

       -s, --strip strip
	   Strip off any characters past strip. Default is 79.

EXAMPLE

	#   shell script
	shtool table -F , -w 5 -c 4 "1,2,3,4,5,6,7,8,9,10,11,12"

HISTORY

       The GNU shtool table command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1999 for GNU shtool.

SEE ALSO

       shtool(1), tr(1), fmt(1), sh(1), awk(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-TABLE.TMP(1)
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