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Top Forums Shell Programming and Scripting How to convert space&tab delimited file to CSV? Post 302910150 by prvnrk on Tuesday 22nd of July 2014 07:12:30 PM
Old 07-22-2014
How to convert space&tab delimited file to CSV?

Hello,

I have a text file with space and tab (mixed) delimited file and need to convert into CSV.

Code:
# cat test.txt
/dev/rmt/tsmmt32   HP        Ultrium 6-SCSI      J3LZ    50:03:08:c0:02:72:c0:b5  F00272C0B5               0/0/6/1/1.145.17.255.0.0.0   /dev/rmt/c102t0d0BEST
/dev/rmt/tsmmt37   HP        Ultrium 6-SCSI      J3LZ    50:03:08:c0:02:72:c0:97  F00272C097               0/0/6/1/1.145.17.255.4.0.0   /dev/rmt/c103t0d0BEST
/dev/rmt/tsmmt48   IBM       ULT3580-TD3         5AT0                             5458623002               0/0/6/1/1.145.0.255.8.0.0    /dev/rmt/c72t0d0BESTn
/dev/rmt/tsmmt53   IBM       ULT3580-TD3         5AT0                             5458623006               0/0/6/1/1.145.0.255.8.0.1    /dev/rmt/c72t0d1BESTn

I tried the below

Code:
sed 's/\t/ /g' test.txt |sed 's/  */ /g' |sed 's/ /,/g' >test.csv

It works but unfortunately, few fields have blank values and with above technique, values are getting shifted to left. Please advise.

Also, how to find out if a file has spaces or tabs, do I need to use an editor which shows control characters?

Thanks in advance!
 

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device_maps(4)							   File Formats 						    device_maps(4)

NAME
device_maps - device_maps file SYNOPSIS
/etc/security/device_maps DESCRIPTION
The device_maps file contains access control information about each physical device. Each device is represented by a one line entry of the form: device-name : device-type : device-list : where device-name This is an arbitrary ASCII string naming the physical device. This field contains no embedded white space or non- printable characters. device-type This is an arbitrary ASCII string naming the generic device type. This field identifies and groups together devices of like type. This field contains no embedded white space or non-printable characters. device-list This is a list of the device special files associated with the physical device. This field contains valid device special file path names separated by white space. The device_maps file is an ASCII file that resides in the /etc/security directory. Lines in device_maps can end with a `' to continue an entry on the next line. Comments may also be included. A `#' makes a comment of all further text until the next NEWLINE not immediately preceded by a `'. Leading and trailing blanks are allowed in any of the fields. The device_maps file must be created by the system administrator before device allocation is enabled. This file is owned by root, with a group of sys, and a mode of 0644. EXAMPLES
Example 1: A sample device_maps file # scsi tape st1: rmt: /dev/rst21 /dev/nrst21 /dev/rst5 /dev/nrst5 /dev/rst13 /dev/nrst13 /dev/rst29 /dev/nrst29 /dev/rmt/1l /dev/rmt/1m /dev/rmt/1 /dev/rmt/1h /dev/rmt/1u /dev/rmt/1ln /dev/rmt/1mn /dev/rmt/1n /dev/rmt/1hn /dev/rmt/1un /dev/rmt/1b /dev/rmt/1bn: FILES
/etc/security/device_maps SEE ALSO
allocate(1), bsmconv(1M), deallocate(1), dminfo(1M), list_devices(1) NOTES
The functionality described in this man page is available only if the Basic Security Module (BSM) has been enabled. See bsmconv(1M) for more information. SunOS 5.10 16 Jan 2001 device_maps(4)
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