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Top Forums Shell Programming and Scripting Tried many options but unable to delete blank lines from text file Post 303000956 by Scrutinizer on Monday 24th of July 2017 10:26:00 AM
Old 07-24-2017
You can also use grep but with [[:space:]] instead of [[:blank:]] :
Code:
grep -v '^[[:space:]]*$'  file

But this will leave the Windows carriage return character on the other lines.

--
You could do it all at once like so:
Code:
awk '{sub(/\r/,x)}NF' file


Last edited by Scrutinizer; 07-24-2017 at 11:38 AM..
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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