[SYMBOL]
[A]
[B]
[C]
[D]
[E]
[F]
[G]
[H]
[I]
[J]
[K]
[L]
[M]
[N]
[O]
[P]
[Q]
[R]
[S]
[T]
[U]
[V]
[W]
[X]
[Y]
[Z]
factorial( )
failure, returning from subroutines
false values
fcntl( ), return values
FETCH( )
fetching URLs from Perl scripts
<FH> line input operator
FIFOs (named pipes)
file access
2nd
[See also directories file contents][See also directories file contents] access modes
2nd
copying and moving files
editing files
[See file contents] filehandles
2nd
caching open
copying
printing to multiple
reading a line from, without blocking
reading from multiple
filtering filename input
command-line options
flushing output
locking files
netlock program
region-specific locks
non-blocking I/O
opening and closing file descriptors
processing all files in directories
recursively
storing files in program text
timestamps
unread bytes, determining number of
file contents
2nd
[See also directories; file access] adding records to wtmp file
comparing two files
configuration files, reading
continually growing files, reading
converting Microsoft files to Unicode
counting lines, paragraphs, and records
extracting single line
fixed-length records
reading
I/O layers
modifying with -i switch
with temporary files
without temporary files
processing all words in
processing binary files
random access input/output
updating
random lines from, selecting
randomizing line order
reading backwards
lines with continuation characters
null-terminated strings from binary files
reading and writing hash records to file
reading and writing Unicode from filehandles
setting default I/O layers
tctee program
testing for trustworthiness
treating files as arrays
strings as files
variable-length text fields
viewing lastlog file information
file descriptors, opening and closing
file extensions
__FILE__ symbol
file test operators
File::Basename module
File::chmod module
File::Compare module
File::Copy module
2nd
File::Find module
removing directories recursively
File::Glob module
File::KGlob module
File::LockDir module
File::NFSLock module
File::Path module
File::stat module
2nd
File::Temp module
FileCache module
filehandles
autovivified
caching
comparing
copying
local
non-blocking I/O
passing
2nd
printing to multiple simultaneously
reading a line from, without blocking
from many
reading and writing Unicode from
reporting filenames in errors
seek offset
standard
storing in variables
tied
using filename as
filenames expanding tildes in
filtering as input
command-line options
globbing
multiple, for same file
parsing
renaming
reporting in errors
sorting
2nd
unusual, opening files with
using as filehandle
fileparse( )
files binary
reading null-terminated strings
C header, translating with h2ph
comparing file contents
configuration, reading
creating temporary
deleting
last line of
downloading, resuming HTTP GET
locking
advisory locking
netlock program
Microsoft, converting to Unicode
opening
processing all in directories
random-access, updating
RSS, reading and writing
storing in program text
treating as arrays
strings as
with unusual filenames, opening
uploaded, receiving with mod_perl handler
XML, larger than available memory, processing
filesystem
[See directories] filtering filenames as input
command-line options
output
XML
FindBin module
finddepth( )
finding fresh hyperlinks
most common anything
patterns
[See regular expressions] text and elements in XML documents
versions and descriptions of modules
findnodes( ) vs. getElementsByTagName( )
FIONREAD call
firewalls, fetching web pages through
fixed-length records
flat-file index program
reading
FixNum class
fixstyle program
flat file index program
flattened lists
floating-point numbers
comparing
rounding
flock( )
compared to SysV lockf( )
floor( )
flushing output
fmt program
fnctl( ), locking files
folded_demo program
fonts, Unicode, support for
foodfind program
=for escape pod directive
ForceArray option
foreach loop
printing to multiple filehandles
renaming files
traversing hashes
fork( )
2nd
[See also processes] avoiding zombie processes
closing sockets after
forking servers
non-forking servers
preforking servers
shell escapes
format_string( )
forms, HTML
saving and emailing
sticky widgets
submitting
forward slash (/) /e substitution modifier
2nd
/g pattern-matching modifier
finding Nth matches
where last pattern ended
/i pattern-matching modifier
/m pattern-matching modifier
multiple lines
/o pattern-matching modifier
/s pattern-matching modifier
multiple lines
/x pattern modifier
comments in regular expressions
root directory
Frame widget, Tk
FTP clients
full-screen mode
functions interpolating within strings
vs. methods
private for variables
references to
types of
fuzzy matching
fwdport program
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