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Top Forums Shell Programming and Scripting Comparing two columns from two different files Post 302595444 by amarn on Friday 3rd of February 2012 07:08:02 AM
Old 02-03-2012
dear tukuyomi, i'm following exactly what you wrote and still i get only the column of $1 from file 2

Code:
akm@snoopy:~/temp$ awk 'NR==FNR{A[$1]=$2;next}$0=$1 OFS A[$1]' file2 file1 > file3
akm@snoopy:~/temp$ cat file3
78RC09/34 
45FD11/11 
00AB01/11 
43TG22/00

---------- Post updated at 06:58 AM ---------- Previous update was at 06:48 AM ----------

ok,my bad, i was inserting file1 instead of file2 in the previous awk command...however i still get the comparison results of column $1 successfully but i'm not able to get their corresponding $2 column.

so now i get in the newly file3 after:

Code:
awk 'NR==FNR{A[$1]=$2;next}$0=$1 OFS A[$1]' file2 file1 > file3

Code:
cat file3
00AB01/11 
43TG22/00 
78RC09/34

---------- Post updated at 07:08 AM ---------- Previous update was at 06:58 AM ----------

tukuyomi,

ok, i'll need to update you on that...the command you wrote is correct but for a weird reason this command was not fully functional on an ubuntu machine...i've tried it on cygwin in a windows environment and it worked perfectly well...sounds a bit awkward but ok,..at the very end everything now is okSmilie

thank you!
 

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PASTE(1)						      General Commands Manual							  PASTE(1)

NAME
paste - paste multiple files together SYNOPSIS
paste [-s] [-d list] file... OPTIONS
-d Set delimiter used to separate columns to list. -s Print files sequentially, file k on line k. EXAMPLES
paste file1 file2 # Print file1 in col 1, file2 in col 2 paste -s f1 f2 # Print f1 on line 1 and f2 on line 2 paste -d : file1 file2 # Print the lines separated by a colon DESCRIPTION
Paste concatenates corresponding lines of the given input files and writes them to standard output. The lines of the different files are separated by the delimiters given with the option -s. If no list is given, a tab is substituted for every linefeed, except the last one. If end-of-file is hit on an input file, subsequent lines are empty. Suppose a set of k files each has one word per line. Then the paste output will have k columns, with the contents of file j in column j. If the -s flag is given, then the first file is on line 1, the second file on line 2, etc. In effect, -s turns the output sideways. If a list of delimiters is given, they are used in turn. The C escape sequences , , \, and are used for linefeed, tab, backslash, and the null string, respectively. PASTE(1)
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