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Top Forums Shell Programming and Scripting Compare values in two files. For matching rows print corresponding values from File 1 in File2. Post 302641785 by otheus on Wednesday 16th of May 2012 01:31:17 PM
Old 05-16-2012
Quote:
Column1 of File1 with Column1 of File2. If a match is found, print the corresponding value from Column2 of File1 in Column5 of File2.
I think my answer is correct but you have the files on the command line in the wrong order.
Code:
awk 'NR==FNR{A[$1]=$2;next} A[$1]{$5=A[$1];print}' file1 file2

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CP(1)							      General Commands Manual							     CP(1)

NAME
cp - copy SYNOPSIS
cp [ -ip ] file1 file2 cp [ -ipr ] file ... directory DESCRIPTION
File1 is copied onto file2. By default, the mode and owner of file2 are preserved if it already existed; otherwise the mode of the source file modified by the current umask(2) is used. The -p option causes cp to attempt to preserve (duplicate) in its copies the modification times and modes of the source files, ignoring the present umask. In the second form, one or more files are copied into the directory with their original file-names. Cp refuses to copy a file onto itself. If the -i option is specified, cp will prompt the user with the name of the file whenever the copy will cause an old file to be overwrit- ten. An answer of 'y' will cause cp to continue. Any other answer will prevent it from overwriting the file. If the -r option is specified and any of the source files are directories, cp copies each subtree rooted at that name; in this case the destination must be a directory. SEE ALSO
cat(1), mv(1), rcp(1C) 4th Berkeley Distribution June 8, 1985 CP(1)
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