Re: Using glob in file test gives "Use of uninitialized value in -e" warning.

glob returns a list of file names. Combine it with grep:

/etc>ls pa*
passwd  passwd-  passwd~

/etc>perl -E 'say for grep { -e $_ } glob "pa*"'
passwd
passwd-
passwd~

/etc>
[download]

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

Comment on Re: Using glob in file test gives "Use of uninitialized value in -e" warning. Download Code

Replies are listed 'Best First'.
Re^2: Using glob in file test gives "Use of uninitialized value in -e" warning. by choroba (Cardinal) on Dec 07, 2017 at 13:20 UTC
What glob returns depends on the context. In scalar context (which -e imposes) it iterates over the matching files, and returns undef when there are no more files. If nothing matches the glob, it returns undef directly. ($q=q:Sq=~/;[c](.)(.)/;chr(-\|\|-\|5+lengthSq)`"S\|oS2"`map{chr \|+ord }map{substrSq`S_+\|`\|}3E\|-\|`7**2-3:)=~y+S\|`+$1,++print+eval$q,q,a, [download]	[reply] [d/l]
Re^3: Using glob in file test gives "Use of uninitialized value in -e" warning. by afoken (Chancellor) on Dec 07, 2017 at 20:42 UTC
What glob returns depends on the context. I must admit I never even thought of using glob in a non-list context, so I learned something new today. Great! Alexander -- Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)	[reply]