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Full Discussion: double while
Top Forums UNIX for Dummies Questions & Answers double while Post 302603317 by lawsongeek on Wednesday 29th of February 2012 02:06:50 PM
Old 02-29-2012
double while
file1 contents:
Code:
jandoe1
johndoe1

file2 contents:
Code:
jandoe
johndoe

my output file names file3, and has contents as:
Code:
This is jandoe1

my script:
Code:
cat file1 | while read line1
cat file2 | while read line2
do
do
   sed -e 's/${line1}/${line2}/g' file3 > file3
done
done

all said and done, my output should look like this: This is jandoe

i just don't how to use double while.
Last edited by Scott; 02-29-2012 at 03:25 PM.. Reason: Use code tags, please...
 

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LEARN ABOUT POSIX

zdiff

ZDIFF(1)						      General Commands Manual							  ZDIFF(1)

NAME

       zcmp, zdiff - compare compressed files

SYNOPSIS

       zcmp [ cmp_options ] file1 [ file2 ]
       zdiff [ diff_options ] file1 [ file2 ]

DESCRIPTION

       Zcmp  and  zdiff are used to invoke the cmp or the diff program on files compressed via gzip.  All options specified are passed directly to
       cmp or diff.  If only file1 is specified, it is compared to the uncompressed contents of file1.gz.  If two files are specified, their  con-
       tents  (uncompressed  if  necessary)  are  fed to cmp or diff.  The input files are not modified.  The exit status from cmp or diff is pre-
       served.

SEE ALSO

       cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1)

BUGS

       Messages from the cmp or diff programs may refer to file names such as "-" instead of to the file names specified.

																	  ZDIFF(1)
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