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Full Discussion: Bash Scipting (New); Run multiple greps > multiple files
Top Forums Shell Programming and Scripting Bash Scipting (New); Run multiple greps > multiple files Post 302748605 by neutronscott on Wednesday 26th of December 2012 10:33:17 AM
Old 12-26-2012
It'd take a lot of time to run 80 greps on every file. If you read in your word file into an array you can do it at once, depending on how many files and if you need to do subdirectories.

If not many words/files, you can try:

Code:
#!/bin/bash
wordfile=words.lst

# read in fixed strings from word file
while IFS= read -r line; do
        words+=('-e')
        words+=("$line")
done < "$wordfile"

echo grep -F "${words[@]}" -- dir1/*
mute@clt:~/temp/LDHB2012$ ./script
grep -F -e one -e string with spaces -e foo -e bar -- dir1/file1 dir1/file2 dir1/file3

remove the 'echo' and adjust as needed.

edit: oops. sorry. this doesn't meet the requirement of outputting to separate files. while I wasn't looking an awk solution was posted. That'd probably be best.
 

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LEARN ABOUT OPENSOLARIS

dircmp

dircmp(1)							   User Commands							 dircmp(1)

NAME

       dircmp - directory comparison

SYNOPSIS

       dircmp [-ds] [-w n] dir1 dir2

DESCRIPTION

       The  dircmp  command  examines dir1 and dir2 and generates various tabulated information about the contents of the directories. Listings of
       files that are unique to each directory are generated for all the options. If no option is entered, a list is output indicating whether the
       file names common to both directories have the same contents.

OPTIONS

       The following options are supported:

       -d      Compares  the  contents	of  files with the same name in both directories and output a list telling what must be changed in the two
	       files to bring them into agreement. The list format is described in diff(1).

       -s      Suppresses messages about identical files.

       -w n    Changes the width of the output line to n characters. The default width is  72.

OPERANDS

       The following operands are supported:

       dir1    A path name of a directory to be compared.
       dir2

USAGE

       See largefile(5) for the description of the behavior of dircmp when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

ENVIRONMENT VARIABLES

       See environ(5) for descriptions of the following environment variables that affect the execution of dircmp: LC_COLLATE,	LC_CTYPE,  LC_MES-
       SAGES, and NLSPATH.

EXIT STATUS

       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred. (Differences in directory contents are not considered errors.)

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cmp(1), diff(1), attributes(5), environ(5), largefile(5)

SunOS 5.11							    1 Feb 1995								 dircmp(1)
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