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Top Forums Shell Programming and Scripting Print lines matching value(s) in other file using awk Post 302416517 by SBC on Tuesday 27th of April 2010 03:07:51 AM
Old 04-27-2010
Thanks vgresh. It worked! I was trying similar code since couple of days with the help of information I found in different search results and I was able to store the value in array but cannot get it referenced to the second file. I understand my mistake now. Thanks alot!

---------- Post updated 04-27-10 at 12:07 AM ---------- Previous update was 04-26-10 at 03:58 PM ----------

Hi Vgersh,

If I would like to print the lines matched in file2 comma separated in file1 side by side then what change will help? I tried the following but its only print file2 match entries.

Code:
Desired Output
12,1,456,111,12,"RTF"
1234,12,789,1,1234,"ESC"

Code:
awk -F, 'FNR==NR{f1[$1]=$1;next}$2 in f1{print f1[$1],$0}' OFS="," file1 file2

I only gets file2 matched entries in this case as array print blank value for second file.

Thanks for the help in advance!
 

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DIFF(1) 						      General Commands Manual							   DIFF(1)

NAME
diff - print differences between two files SYNOPSIS
diff [-c | -e | -C n] [-br]file1 file2 OPTIONS
-C n Produce output that contains n lines of context -b Ignore white space when comparing -c Produce output that contains three lines of context -e Produce an ed-script to convert file1 into file2 -r Apply diff recursively to files and directories of EXAMPLES
diff file1 file2 # Print differences between 2 files diff -C 0 file1 file2 # Same as above diff -C 3 file1 file2 # Output three lines of context with every diff -c file1 file2 # Same diff /etc /dev # Compares recursively the directories /etc and /dev diff passwd /etc # Compares ./passwd to /etc/passwd DESCRIPTION
the same name, when file1 and file2 are both directories" difference encountered" Diff compares two files and generates a list of lines telling how the two files differ. Lines may not be longer than 128 characters. If the two arguments on the command line are both directories, diff recursively steps through all subdirectories comparing files of the same name. If a file name is found only in one directory, a diagnostic message is written to stdout. A file that is of either block special, character special or FIFO special type, cannot be compared to any other file. On the other hand, if there is one directory and one file given on the command line, diff tries to compare the file with the same name as file in the directory directory. SEE ALSO
cdiff(1), cmp(1), comm(1), patch(1). DIFF(1)
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