Re^3: Need help understanding code snippet with "grep -f"

in reply to Re^2: Need help understanding code snippet with "grep -f"
in thread Need help understanding code snippet with "grep -f"

I figure the grep -f and the map are both not necessary. Shouldn't this work also?
my @files = glob {"archiv/*vp.o$id"};
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No. glob does not check the type of the file. -f does:

/tmp>touch foo.txt
/tmp>mkdir bar.txt
/tmp>ls -lF
[...]
drwxr-xr-x 2 alex   users     40 Dec 23 10:16 bar.txt/
-rw-r--r-- 1 alex   users      0 Dec 23 10:16 foo.txt
[...]
/tmp>perl -E 'say for glob "*.txt"'
bar.txt
foo.txt
/tmp>perl -E 'say for grep -f,glob "*.txt"'
foo.txt
/tmp>
[download]

Alexander

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

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Re^4: Need help understanding code snippet with "grep -f" by Marshall (Canon) on Dec 23, 2015 at 09:49 UTC
Yes, this is quite correct! We are getting far from the original point. I think that instead of creating a bunch of sub-directories, a simple DB file would be just fine. An EXCEL .csv file would be fine.	[reply]

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