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Full Discussion: Need Help with Echo
Top Forums UNIX for Dummies Questions & Answers Need Help with Echo Post 302209976 by saintdesy on Sunday 29th of June 2008 03:32:26 PM
Old 06-29-2008
Need Help with Echo
I am trying to glue 4 comma separated values files side by side into one. Right now, I'm working based on this:

i="1"
while [ $i -lt 426 ] #files are 425 lines
do
echo `head -$i file1.csv | tail -1`,`head -$i file2.csv | tail -1`,`head -$i file3.csv | tail -1`,`head -$i file4.csv | tail -1` >> finished.csv
let "i += 1"
done

for some reason though, the echo command does not output the data in a single line, and if you try to output from all 4 files by typing the echo command directly into the shell, it only displays the first half of the data. Does anyone know why echo is not cooperating?
 

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LEARN ABOUT DEBIAN

obd2csv

obd2csv(1)						      General Commands Manual							obd2csv(1)

NAME

       obd2csv - Convert obdgpslogger(1) logs to csv files

SYNOPSIS

       obd2csv [ options ]

DESCRIPTION

       Convert obdgpslogger(1) logs to csv files

OPTIONS

       -o|--out <output filename>
	      Output to this .csv file

       -d|--db <database>
	      Work from logs stored in this database file

       -s|--start <time>
	      Only dump rows more recent than this

       -e|--end <time>
	      Only dump rows older than this

       -z|--gzip
	      gzip compress output using zlib [if available]

       -v|--version
	      Print out version number and exit.

       -h|--help
	      Print out help and exit.

NOT OPTIONS

       These options aren't intended for end-users, they're for the GUI.

       -p|--progress
	      Print out progress. It will occasionally print a number in the range [0..100], indicating progress percentage.

SEE ALSO

       obdgpslogger(1), obd2kml(1), obd2gpx(1), obdsim(1), obdgui(1), obdlogrepair(1)

AUTHORS

       Gary "Chunky Ks" Briggs <chunky@icculus.org>

																	obd2csv(1)
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