I left out some details but I basically have a bunch of *.csv's that I am trying to collect together into one file. The format of each *.csv matches what I posted earlier, where the filename is the first record and the second line is the data. Is there a good way to add a header row at the top of the output file? For some reason I don't believe my shell is working the way it is supposed to, so I am resorting to calling awk once to create the output file with the header row and then on the second call to populate it. Either way, thanks for your help!
---------- Post updated at 04:58 PM ---------- Previous update was at 04:47 PM ----------
My awk script looks like:
BEGIN{
RS="\n"
FS="*"
OFS=","
ST1="Channel Number"
ST2="Channel Label"
ST3="Time at Max"
ST4="Time History Max"
ST5="Time at Min"
ST6="Time History Min"
ST7="Frequency at Max Response"
ST8="Max Response"
}
{
if (FNR==1)
outputfile=$1
print ST1 ST2 ST3 ST4 ST5 ST6 ST7 ST8 >outputfile
if (FNR==2)
print $1 $2 $3 $4 $5 $6 $7 $8 >>outputfile
}
I thought this would work but it doesn't
You're close. You have a few problems:
First, the expressions passed to print need to be separated by a comma.
Second, you print the headerline to outputfile twice (because you're missing a { } pair around the commands you want to run when FNR is 1.
Third, you aren't closing any of the output files you're opening. With a small number of files, it won't matter since all open files will be closed when you get to the end. But if you have a large number of files, you may run out of file descriptors.
The default value for RS is a <newline>, so you don't need to set it.
I've made a couple of other slight changes and reformatted to make it easier to read, but this is VERY similar to what you did:
Code:
BEGIN{
FS="*"
OFS=","
ST1="Channel Number"
ST2="Channel Label"
ST3="Time at Max"
ST4="Time History Max"
ST5="Time at Min"
ST6="Time History Min"
ST7="Frequency at Max Response"
ST8="Max Response"
}
FNR==1 {
if (output file!="") close(outputfile)
outputfile=$1
print ST1,ST2,ST3,ST4,ST5,ST6,ST7,ST8 >outputfile
}
FNR==2 {
print $1,$2,$3,$4,$5,$6,$7,$8 >>outputfile
}
Im using awk and I want the output filename to contain the first field of the input file.
Ex.
1 dddd wwwww
1 eeeee wwww
1 wwww eerrrr
2 eeee eeeeee
I want the output files to be xxx1 and xxx2
Thank you (4 Replies)
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I'm sorry if my question wasn't clear at all.
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awk -F'' '
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Hello,
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Discussion started by: cmccabe
3 Replies
LEARN ABOUT DEBIAN
smokeping_sorters_max
..::lib::Smokeping::sorters::Max(3) SmokePing ..::lib::Smokeping::sorters::Max(3)NAME
Smokeping::sorters::Max - Order the target charts by Max RTT
OVERVIEW
Find the charts with the highest round trip time.
DESCRIPTION
Call the sorter in the charts section of the config file
+ charts
menu = Charts
title = The most interesting destinations
++ max
sorter = Max(entries=>10)
title = Sorted by Max Roundtrip Time
menu = by Max
format = Max Roundtrip Time %f seconds
COPYRIGHT
Copyright (c) 2007 by OETIKER+PARTNER AG. All rights reserved.
LICENSE
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
AUTHOR
Tobias Oetiker <tobi@oetiker.ch>
2.6.8 2012-02-26 ..::lib::Smokeping::sorters::Max(3)