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Top Forums Shell Programming and Scripting Comparing two columns in two files and printing a third based on a match Post 303023526 by vgersh99 on Tuesday 18th of September 2018 08:57:52 PM
Old 09-18-2018
Quote:
Originally Posted by dis0wned
Update, I have been making a little progress but still dont have it. This will print fields when there is a match but it isnt printing fields from file1. It will print all lines, but none of the matching info. Any help (explanation would be awesome too) is greatly appreciated!!
Code:
$  awk -F',' 'FNR==NR{a[$1]=$2;next}{if(a[$5]==""){a[$5]=0}; print $1,$2,$5,a[$1,$2]}' file1 file2

------ Post updated at 12:55 AM ------

Below is a sample of what is being returned

Code:
$  awk -F',' 'FNR==NR{a[$1]=$2;next}{if(a[$5]==""){a[$5]=0}; print $1,$2,$5,a[$1,$2]}' file1 file2

Hostname Port Vlan
onshintstat Te1/1 trunk
onshintstat Te1/2 trunk
onshintstat Te1/3 trunk
onshintstat Te1/4 trunk
onshintstat Te1/5 572
onshintstat Te1/6 572
your array a is populated with the single dimension. Why are you trying to print it indexing by 2 indecies?
Have you tried the last proposed solution from post #8?
 

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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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