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Full Discussion: Tab Delimiter to csv in python:perl
Top Forums UNIX for Beginners Questions & Answers Tab Delimiter to csv in python:perl Post 303046314 by Perlbaby on Thursday 30th of April 2020 01:59:16 PM
Old 04-30-2020
Tab Delimiter to csv in python:perl
Hi
How do we handle delimiter values in python or perl to convert the field values from 3 columns to 2 columns into csv file

Columns Values

Product : Contain one value
ID : Ignore this
Features : Contains multiple values separated by tab

$cat Check_File
Code:
Product                ID                   Features 
Apple-for-Laptop 1.2.13.22 itunes app-stores health    # [ Product1 ]
Samsung-for-Mobile 5.43.67  music play-store long-battery    # [ Product2 ]
Nokia 4.1.2 long-battery    # [ Product3 ]


Expected format :
Code:
Product, Features
Apple-for-Laptop,itunes
Apple-for-Laptop,app-stores
Apple-for-Laptop,health   
Samsung-for-Mobile,music 
Samsung-for-Mobile,play-store 
Samsung-for-Mobile,long-battery 
Nokia,long-battery

Is there better way to handle this in python/perl . The file is big with 200 Million records.
 

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LEARN ABOUT DEBIAN

battery-stats-collector

BATTERY-STATS-COLLECTOR(8)				      System Manager's Manual					BATTERY-STATS-COLLECTOR(8)

NAME

       battery-stats-collector - Collect statistics about battery charge

SYNOPSIS

       battery-stats-collector [option] ...

DESCRIPTION

       Does exactly as it says on the tin - it will collect information from the APM subsystem and write it to a log file.

       Normally battery-stats-collector will be invoked by the system startup scripts.

OPTIONS

       battery-stats follow the usual GNU command line syntax, with long options starting with two dashes (`-').

       -V, --version
	      Show version of battery-stats-collector and exit.

       -h, --help
	      Show summary of options and exit.

       -s, --syslog
	      Log  error  messages  to	syslog,  rather than stderr. Note that messages regarding invalid command line parameters will still go to
	      stderr.

       -o filename, --output filename
	      Append statistics to the given file. The default filename is /var/log/battery-stats

       -1, --once
	      Only collect a single sample and exit. The default is to loop continiously.

       -i seconds, --interval=seconds
	      Sampling intervals in seconds. If not specified, stats will be collected every 30 seconds.

       -I, --ignore-missing-battery
	      Keeps quiet about missing batteries. This stops the warnings on stderr/syslog that would otherwise occur when the battery  is  miss-
	      ing.

       -F samplecount, --flush=samplecount
	      Flushes  data  to  the logfile every <samplecount> samples. A value of zero turns off flushing altogether. If left unspecified, bat-
	      tery-stats-collector will assume a value of 1, i.e. flush at every write.  Setting the value too low will  tend  to  keep  the  disk
	      spinning (and use battery needlessly).  Setting the value too high will loose statistics in case of an improper shutdown.
	      Note  that  since  battery-stats-collector  uses the standard Ansi C library, data will still be flushed periodically (regardless of
	      this setting) once the buffer fills up. The size of the buffer is platform dependent, but 4Kb and 8Kb seem pretty normal.

FILES

       /var/log/battery-stats
	      Default file for writing battery charge samples to.

SEE ALSO

       battery-graph(1)
       Newer versions of this program may (or may not) be available at http://karl.jorgensen.com/battery-stats

AUTHOR

       This manual page was written by Karl E. Jorgensen <karl@jorgensen.com>, for the Debian GNU/Linux system (but may be used by others).

								September 18, 2002					BATTERY-STATS-COLLECTOR(8)
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