Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

perlman:perlfaq5

by root (Scribe)
on Oct 13, 1999 at 03:30 UTC ( #798=perlman: print w/ replies, xml ) Need Help??

perlfaq5

Current Perl documentation can be found at perldoc.perl.org.

Here is our local, out-dated (pre-5.6) version:

This section deals with I/O and the ``f'' issues: filehandles, flushing, formats, and footers.

How do I flush/unbuffer an output filehandle? Why must I do this?
How do I change one line in a file/delete a line in a file/insert a line in the middle of a file/append to the beginning of a file?
How do I count the number of lines in a file?
How do I make a temporary file name?
How can I manipulate fixed-record-length files?
How can I make a filehandle local to a subroutine? How do I pass filehandles between subroutines? How do I make an array of filehandles?
How can I use a filehandle indirectly?
How can I set up a footer format to be used with write()?
How can I write() into a string?
How can I output my numbers with commas added?
How can I translate tildes (~) in a filename?
How come when I open a file read-write it wipes it out?
Why do I sometimes get an "Argument list too long" when I use <*>?
Is there a leak/bug in glob()?
How can I open a file with a leading "ż" or trailing blanks?
How can I reliably rename a file?
How can I lock a file?
What can't I just open(FH, ">file.lock")?
I still don't get locking. I just want to increment the number in the file. How can I do this?
How do I randomly update a binary file?
How do I get a file's timestamp in perl?
How do I set a file's timestamp in perl?
How do I print to more than one file at once?
How can I read in a file by paragraphs?
How can I read a single character from a file? From the keyboard?
How can I tell if there's a character waiting on a filehandle?
How do I do a <CODE>tail -f</CODE> in perl?
How do I dup() a filehandle in Perl?
How do I close a file descriptor by number?
Why can't I use "C:\temp\foo" in DOS paths? What doesn't `C:\temp\foo.exe` work?
Why doesn't glob("*.*") get all the files?
Why does Perl let me delete read-only files? Why does <CODE>-i</CODE> clobber protected files? Isn't this a bug in Perl?
How do I select a random line from a file?
Log In?
Username:
Password:

What's my password?
Create A New User
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (5)
As of 2015-07-28 04:39 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (252 votes), past polls