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Top Forums UNIX for Beginners Questions & Answers Need to save output of echo and awk to a file Post 303036726 by jim mcnamara on Tuesday 9th of July 2019 10:21:32 AM
Old 07-09-2019
This works for me:
Code:
 a=$(echo 'hi there:' && awk '{printf "  %s:\n     ip: %s\n", $2, $1 }' host2.txt)
 echo "$a" > yaml_file

Note I added 'hi there', should be something else.
If you run a series of commands as a child process and save the all the outputs to a variable, stdout gets written to that variable.
There are other ways to do this, as a matter of taste or readability of code.
 

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English(3pm)						 Perl Programmers Reference Guide					      English(3pm)

NAME
English - use nice English (or awk) names for ugly punctuation variables SYNOPSIS
use English; use English qw( -no_match_vars ) ; # Avoids regex performance penalty # in perl 5.16 and earlier ... if ($ERRNO =~ /denied/) { ... } DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get triggered just by accessing them (like $0) will still be affected. For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module. See perlvar for a complete list of these. PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if your code is to run on perl 5.18 or earlier. This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing use English qw( -no_match_vars ) ; . It is especially important to do this in modules to avoid penalizing all applications which use them. perl v5.18.2 2014-01-06 English(3pm)
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