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Top Forums Shell Programming and Scripting For loop without checking file exists Post 302971561 by Don Cragun on Thursday 21st of April 2016 05:03:47 PM
Old 04-21-2016
Quote:
Originally Posted by rovf
I think in ksh it is

set -o noglob

... ... ...
No. set -o noglob is a synonym for set -f in ksh. Both of which disable globing; they are not equivalent to the bash shopt -s nullglob.

If a directory contains files named x.txt and y.txt, the commands:
Code:
set +f	# default initial state
for i in *.txt
do	printf '%s\n' "$i"
done

produces the output:
Code:
x.txt
y.txt

and the commands:
Code:
set -f	# turn off globing
for i in *.txt
do	printf '%s\n' "$i"
done

produces the output:
Code:
*.txt

The set -f and set +f commands are required by the standards and are available in bash, ksh, and zsh.
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