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Re: bash "while do echo" can't function correctly

From: John McKown
Subject: Re: bash "while do echo" can't function correctly
Date: Wed, 13 Apr 2016 06:34:23 -0500

On Wed, Apr 13, 2016 at 1:10 AM, Geir Hauge <address@hidden> wrote:

though printf should be preferred over echo:

    while read -r line; do printf '%s\n' "$line"; done < test.txt

​I've never read about using printf in preference to echo. Why is that? ​I have used it myself in special cases, such as wanting leading zeros (i=0;printf '%03d\n' "${i}";)


Geir Hauge

How many surrealists does it take to screw in a lightbulb? One to hold the griffon and one to fill the bathtub with brightly colored LEDs.

Maranatha! <><
John McKown

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