Re: How do I write to a file?

in reply to How do I write to a file?

Always, ALWAYS check the return value of a command such as open: open INPUT "myfile.txt" || die "Cannot open file: $!"; This will save you hours of aggregate troubleshooting when your program fails silently. (The special variable $! contains the error message. Print it to discover why the file couldn't be opened.)

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Re: Answer: How do I write to a file? by I0 (Priest) on Apr 08, 2002 at 06:22 UTC
`#I think you meant either open INPUT, "myfile.txt" or die "Cannot open file: $!"; #or (open INPUT, "myfile.txt") \|\| die "Cannot open file: $!"; #"myfile.txt" \|\| die "Cannot open file: $!" is always true` [download]	[reply] [d/l]

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Re: Answer: How do I write to a file?
by I0 (Priest) on Apr 08, 2002 at 06:22 UTC

#I think you meant either
open INPUT, "myfile.txt" or die "Cannot open file: $!";
#or
(open INPUT, "myfile.txt") || die "Cannot open file: $!";
#"myfile.txt" || die "Cannot open file: $!"  is always true
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