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Top Forums Shell Programming and Scripting Delete an entire column from a tab delimited file Post 302783285 by sampoorna on Wednesday 20th of March 2013 08:00:45 AM
Old 03-20-2013
Delete an entire column from a tab delimited file

Hi,

Can anyone please tell me about how we can delete an entire column from a tab delimited file?

Mu input_file.txt looks like this:

Quote:
Name Postcode Fund ISIN
ABC TN16 9BE Franklin UK Mid Cap Fund A Inc GBP GB00B3ZGH246
ABC BH15 2BX Templeton Global Bond A Mdis GBP H1 LU0316492692
And I want the output as:
Quote:
Postcode Fund ISIN
TN16 9BE Franklin UK Mid Cap Fund A Inc GBP GB00B3ZGH246
BH15 2BX Templeton Global Bond A Mdis GBP H1 LU0316492692
I used the below code
Code:
nawk -v d="1" 'BEGIN{FS=OFS="\t"}{$d=""}{print}' input_file.txt

But in the output, the first column is coming as NULL and then the remaining columns are printed.

Thanks
 

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GBP-PQ(1)						      git-buildpackage Manual							 GBP-PQ(1)

NAME
gbp-pq - Manage quilt patches on patch queue branches in git SYNOPSIS
gbp-pq [ --verbose ] [ --color=[auto|on|off] ] [ --[no-]patch-numbers ] [ --topic=topic ] [ --time-machine=num ] drop | export | import | rebase | switch DESCRIPTION
gbp-pq helps one to manage quilt patches in Debian packages that are maintained with git-buildpackage. This is especially useful with pack- ages using the 3.0 (quilt) source format. With gbp-pq you can maintain the quilt patches that should be applied to a package on a separate branch called patch-queue branch. So if your Debian package lives on master the associated patch-queue branch will be called patch- queue/master. See <URL:https://honk.sigxcpu.org/piki/development/debian_packages_in_git/> for example workflows. ACTIONS
import Create a patch queue branch from quilt patches in debian/patches/ that are listed in debian/patches/series. export Export the patches on the patch-queue branch associated to the current branch into a quilt patch series in debian/patches/ and update the series file. rebase Switch to the patch-queue branch associated to the current branch and rebase it against the current branch. drop Drop (delete) the patch queue associated to the current branch. So if you're on branch foo this would drop branch patch-queue/foo. apply Add a single patch to the patch-queue similar to using git-am. Use --topic if you want the patch to appear in a separate subdir when exporting the patch queue using export. This can be used to separate upstream pathes from debian specific patches. switch Switch to the patch-queue branch if on the base branch and switch to base branch if on patch-queue branch. OPTIONS
--verbose -v verbose execution --color=[auto|on|off] Whether to use colored output. --[no-]patch-numbers Whether the patch files should start with a number or not. --topic=topic Topic to use when importing a single patch --time-machine=NUM When importing a patch queue fails, go back commit by commit on the current branch to check if the patch-queue applies there. Do this at most NUM times. This can be useful if the patch-queue doesn't apply to the current branch HEAD anymore, e.g. after import- ing a new upstream version. TAGS
When exporting patches from a patch-queue branch gbp-pq will look at the patch header for special tags it recognizes. All tags need to start at the first column and require at least one whitespace after the colon. Gbp-Pq-Topic: topic Moves the patch into a subdir called topic when running gbp-pq export . This allows for some structure below debian/patches. SEE ALSO
git-buildpackage(1), dpkg-source(1), quilt(1), gbp.conf(5) AUTHOR
Guido Guenther <agx@sigxcpu.org> 01 June 2012 GBP-PQ(1)
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