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03-09-2009
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Need help with awk - how to read a content of a file from every file from file list
Hi Experts.
I need to list the file and the filename comes from the file ListOfFile.txt. Basicly I have a filename "ListOfFile.txt" and it contain Example of ListOfFile.txt /home/Dave/Program/Tran1.P /home/Dave/Program/Tran2.P /home/Dave/Program/Tran3.P /home/Dave/Program/Tran4.P /home/Dave/Program/Tran5.P Each file contain the same format on the first 2 lines about it's version. I need to read the data from thesecond line column 3 Example of Tran1.P /**************************** 01122008 /home/Dave/Program/Tran1.P 10.05 ****************************/ After I get the data from second line column 3 (10.05), I need to compare this data to the same filename that I found from file mapVersion.txt Example of mapVersion.txt Tran001.P|3.4 Tran020.P|4.2 Tran1.P|10.05 Tran12.P|4.11 Tran2.P|3.0 Tran3.P|10.5 Tran3A.P|12.3 Tran4.P|4.1 Tran5.P|1.2 I want to know if it's the same or not. I know how to write script with ksh but I like to use awk to do this because I think it's faster than while loop. Thanks in advance, Tanit |
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03-09-2009
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Quote:
Quote:
Quote:
Last edited by vgersh99; 03-09-2009 at 10:56 AM.. Reason: remove code - misread the question - see radoulov's code |
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03-09-2009
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Yes, we must ask you to be patient.
Try this (use nawk or /usr/xpg4/bin/awk on Solaris): Code:
awk -F\| 'FILENAME == ARGV[1] {
m[$1] = $2; next
}
FILENAME == ARGV[2] {
n = split($0, t, "/"); f[$0] = t[n]
ARGV[ARGC++] = $0; next
}
{
FNR == 1 && FS = "[ \t]*"
if (FNR == 2)
print FILENAME ": version", ($NF == m[f[FILENAME]] ? \
"OK" : "mismatch " $NF " <-> " m[f[FILENAME]])
}' mapVersion.txt ListOfFile.txt
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03-09-2009
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Notice that if the input files are large and you have GNU awk, including nextfile after the print statement in the if block (you should add another pair of braces too) will significantly improve the performance of the script.
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