Comments on: Remove blank lines from a file using grep

By: sg1973

sg1973 — Thu, 19 Nov 2009 18:35:04 +0000

thanks

By: bryansenter

bryansenter — Wed, 19 Aug 2009 13:44:37 +0000

Include blank lines that aren't really blank (tabs, spaces, CRLF, etc)

grep -vc '^[[:space:]]*$'

By: sivapitchai

sivapitchai — Fri, 07 Aug 2009 20:22:49 +0000

Have you tried the above commans…?

By: Luis

Luis — Fri, 13 Mar 2009 18:46:04 +0000

awsome

By: Jadu Saikia

Jadu Saikia — Wed, 07 Jan 2009 08:01:31 +0000

All ways together, :-)

$ grep -v '^$' file
$ grep '.' file
$ sed '/^$/d' file
$ sed -n '/^$/!p' file
$ awk NF file
$ awk '/./' file

unstableme.blogspot.com

By:

Mon, 23 Jun 2008 03:55:49 +0000

The easiest way to remove blank lines from a file is to use a sed statement. The following syntax removes the blank lines.

# cat my_file | sed /^$/d

By:

Wed, 23 Jan 2008 03:17:56 +0000

This wasn’t working for me using Cygwin, then I realised that the file I was looking at had Windows line endings. There are any number of solutions to this, but the one I chose was to pipe through tr -d “r” before piping through grep. Then it worked like a charm. — Richie Hindle, richie@entrian.com

By:

Fri, 03 Sep 2004 04:08:08 +0000

.. or, quicker, grep .

By: raxxal

raxxal — Thu, 13 May 2004 12:02:13 +0000

By the way, if you want to see the $ sign, in vi enter :set list
also, in cat do the following: cat -vet

Raxxal

By: qmchenry

qmchenry — Tue, 25 Nov 2003 06:31:59 +0000

Great catch! You are absolutely correct. The recipe has been repaired. Thank you for helping to improve Tech-Recipes.

Quinn