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Top Forums Shell Programming and Scripting Read in 2-column CSV, output many files based on field Post 302740137 by pxalpine on Wednesday 5th of December 2012 03:36:23 PM
Old 12-05-2012
Read in 2-column CSV, output many files based on field

Is there a way to read in a two-columned CSV file, and based on the fields in 1st column, output many different files? The input/output looks something like:

Code:
input.csv:
call	Call Mom.
call	Call T-Mobile.
go	Go home.
go	Go to school.
go	Go to gas station.
play	Play music.
play	Play Beatles.

Code:
outputs 3 files:
call.xml
<value><tokens><token>Call</token><token>Mom</token></tokens></value>
<value><tokens><token>Call</token><token>T-Mobile</token></tokens></value>

go.xml
<value><tokens><token>Go</token><token>home</token></tokens></value>
<value><tokens><token>Go</token><token>to</token><token>school</token></tokens></value>
<value><tokens><token>Go</token><token>to</token><token>gas</token><token>station</token></tokens></value>

play.xml
<value><tokens><token>Play</token><token>music</token></tokens></value>
<value><tokens><token>Play</token><token>Beatles</token></tokens></value>

I'm stuck at the part of checking which items in 1st column are the same, then saving all those identical items along with their rows into a new list?? Is this possible to do with shell scripts, or would I need to use Python?
 

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music123(1)						      General Commands Manual						       music123(1)

NAME
music123 - plays various sound files (usually including MP3, Ogg and Wav). SYNOPSIS
music123 [ -hqrvz ] file ... DESCRIPTION
music123 is a shell around various command line programs to play music files. It will descend directories trees with -r, and randomize file lists with -z. The programs used and the options given them are listed in /etc/music123rc or ~/.music123rc. OPTIONS
-h Show command help and exit; -q Quiet mode. No messages are displayed. -r Recurse into directories, instead of ignoring them. -v Display version information and exit. -z Play files in random order. -Z Play the files randomly and endlessly. -l Loop. -z -l differs from -Z in that -z -l will randomize, play through the song list (without repetition) in random order once, and repeat the songs in that order over and over; -Z will randomly play the songs, without any order, and will possibly play a song right after itself. -i Ignore extension case. -L List files and exit. -T Start a task that handle commands, only one command supported : quit, using q or Q will quit the application at the end of the cur- rent song. -D Set music123 not to delay between songs. (May make music123 harder to kill). -d Customize the time music123 delays between songs. -d takes one argument, expressed in seconds, which may have a fractional part. -@ Play the files listed in the mandatory argument of -@. Other files can be added on the command line, and this option can be given several times. Note that music123 doesn't yet play URLs. -- End option list. EXAMPLES
Play three songs: music123 test1.ogg test2.mp3 test3.wav Play a couple of directories and other songs at random: music123 -z -r Rock/ test1.ogg Pop/ test4.wav FILES
/etc/music123rc Describes which programs music123 uses, which files types it supports, and which options it passes those programs. ~/.music123rc Per-user config file to override the system wide settings. AUTHORS
Authors: David Starner <dvdeug@debian.org> July 24, 2002 music123(1)
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