create csv using ksh

Posted on 2010-11-16
Last Modified: 2013-12-26
hi guys, trying to create a csv in ksh,

using 'awk '{print $1" "$14" "$15" "$16" "$17" "$18" "$19}' >> $TMP_FILE' on another set of files I a simple log file with hundreds of lines in like so:

ABC_DEFGHI_16_JKLMNP11.20101115_095412_374.log:09:54:29.579 cars amount 29, total cars 70
ABC_DEFGHI_16_JKLMNP11.20101115_095412_374.log:09:54:29.585 cars amount 34, total cars 43
ABC_DEFGHI_16_JKLMNP11.20101115_095412_374.log:09:54:29.601 cars amount 22, total cars 44

but from the above log file i'm trying to create 2 csv files which looks like so:

date,time,cars amount

and the other one...

date,time,cars amount

could anyone provide an example awk or cut to achieve the above? cheers!
Question by:r_padawan
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LVL 12

Expert Comment

ID: 34151360
Will you accept a Perl solution that you can run from your shell script or command line, r_padawan?

Author Comment

ID: 34153198
yes pearl is good ;-)
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Expert Comment

ID: 34153482
Is this homework, r_padawan?  Tell us all about it.
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Author Comment

ID: 34158947
solved with awk...
LVL 12

Expert Comment

ID: 34159614
Hi r_padawan,

Sorry for the delay with this.  In case you're still interested, here's a quick & nasty Perl alternative (without the column headings):

perl -ne '($x,$x,$x,$x,$d,$x,$x,$x,$h,$m,$s,$t,$x,$x,$a)=split(/[._:, ]/);$d=~s|(....)(..)(..)|$3/$2/$1|;print "$d,$h:$m:$s,$a\n";warn "$d,$h:$m:$s.$t,$a\n"' $TMP_FILE >file1.csv 2>file2.csv

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What does your awk solution look like?

By the way, I'd suggest you consider the option of generating these 2 output files from the original source, rather than having your awk script (the one in your original post) generate an intermediate file (unless you need that intermediate file for something, of else course).  If you need help with doing this, pls post some sample data from the original file, which corresponds to the data you've already provided (which was very useful, by the way!).

Author Comment

ID: 34162308
keep it open! :-)

Author Comment

ID: 34162328
I know that generating from the original source would be best but the lines contained in the original files are very very long, i was attempting to make the awk more simple by first chopping down the data into somthing more manageable, I struggle to with awk at the best of times, this was the awk I used (I didn't write this):

awk -F'[ \t,_:.]*' '{print substr($5,7,2)"/"substr($5,5,2)"/"substr($5,1,4)","$9":"$10":"$11"."$12}'

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LVL 12

Expert Comment

ID: 34162703
Hi r_padawan,

I see that the awk one-liner above produces only one of the two files you wanted.  What about the other file?  I also see it has a '\t' in it (that represents a TAB character.  If there are no tabs in your input file, you should be able to remove the '\t' from the awk one-liner.  If there ARE tabs, tell me where, pls.

What would you like me to do for you now?  Some options are, I could:
1. Change my Perl one-liner to put column headings on the output files.
2. Change my Perl one-liner to take input from the original source file.  If you want me to do this, pls ATTACH some sample data from the original file, which corresponds to the data you've already provided.
3. Do something else.  Tell me.

Accepted Solution

genialdinesh earned 500 total points
ID: 34443999

A solution with awk and cut
test1.txt is the log file, containing hundreds of lines.

cat test1.txt  | tr ' .'  ,, | cut -d, -f2,3,7  | nawk -f summary.awk

summary.txt contents
#!/bin/awk -f
printf("%d/%d/%d,%s,%d\n",    day,month,year,astime,$3);

Author Closing Comment

ID: 34853210

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