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Full Discussion: How to count number of results found?
Top Forums Shell Programming and Scripting How to count number of results found? Post 302770871 by gary_w on Monday 18th of February 2013 05:54:54 PM
Old 02-18-2013
Code:
#!/bin/ksh

FILE1=x1.dat
FILE2=x2.dat

while read word
do
  # -w option to grep for searching on a word boundary.
  count=$( grep -wc "$word" $FILE2 )
  printf "%s: %d\n" "$word" $count
done < $FILE1

exit 0

Code:
$ cat x1.dat
word1
word2
word3
$ cat x2.dat
word1
word2
word3
word1
word2
word3oword1
word2
word2
word2
word3
word3
word3
word3 word3word3
$ ./x
word1: 2
word2: 5
word3: 5
$

I would advise against using tr, since that translation of the entire file is happening for each word in FILE1.
Last edited by gary_w; 02-18-2013 at 07:02 PM..
This User Gave Thanks to gary_w For This Post:
demmel
 

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LEARN ABOUT XFREE86

comm

COMM(1) 							   User Commands							   COMM(1)

NAME

       comm - compare two sorted files line by line

SYNOPSIS

       comm [OPTION]... FILE1 FILE2

DESCRIPTION

       Compare sorted files FILE1 and FILE2 line by line.

       When FILE1 or FILE2 (not both) is -, read standard input.

       With  no  options,  produce three-column output.  Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and
       column three contains lines common to both files.

       -1     suppress column 1 (lines unique to FILE1)

       -2     suppress column 2 (lines unique to FILE2)

       -3     suppress column 3 (lines that appear in both files)

       --check-order
	      check that the input is correctly sorted, even if all input lines are pairable

       --nocheck-order
	      do not check that the input is correctly sorted

       --output-delimiter=STR
	      separate columns with STR

       --total
	      output a summary

       -z, --zero-terminated
	      line delimiter is NUL, not newline

       --help display this help and exit

       --version
	      output version information and exit

       Note, comparisons honor the rules specified by 'LC_COLLATE'.

EXAMPLES

       comm -12 file1 file2
	      Print only lines present in both file1 and file2.

       comm -3 file1 file2
	      Print lines in file1 not in file2, and vice versa.

AUTHOR

       Written by Richard M. Stallman and David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report comm translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       join(1), uniq(1)

       Full documentation at: <http://www.gnu.org/software/coreutils/comm>
       or available locally via: info '(coreutils) comm invocation'

GNU coreutils 8.28						   January 2018 							   COMM(1)
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