Index

$|

Flushing Output

$!

$!

$/

$"

$_

$0

$$

$.

__FILE__

__LINE__

alarm

allocation

ARGV

Command line arguments: ARGV

array

Arrays

autoflush()

Flushing Output

AXAS

USB, select(), POSIX::Termios, baudrates

BPM

Serial line I/O, I404,

caller

Meta Information, caller(), ref(),

cbreak mode

Reading single keystrokes, cbreak

closures

Closures, anonymous subroutines

control statements

Control Statements

cua0

Serial line I/O, DMC,

data structures

nested: Nested Data Structures

DMC

Serial line I/O, DMC,

Elcomat

Serial line I/O, Elcomat,

ENV

PWD: chdir, $ENV{PWD}

errno

Errors, $ERRNO

Errors

Errors, $ERRNO

eval

Alarm Handler

example

eval: Alarm Handler
socket: Alarm Handler | Raw Sockets, Spectra Client

examples

Examples

exit handler

BEGIN, END

exporting symbols

Packages, Modules

file handle

File I/O, File Handles | Passing File Handles | Storing File Handles in

FileHandle

The FileHandle Module

files

File I/O, File Handles

flush()

Flushing Output

function

abs: Numeric functions
access time: stat, localtime
alarm: alarm | eval, alarm (timeout)
atan2: Numeric functions
BEGIN: BEGIN, END
caller: Subroutines | Meta Information, caller(), ref(),
chdir: chdir, $ENV{PWD}
chomp: chomp
chr: chr, ord, character conversion
closedir: readdir
cos: Numeric functions
defined: Subroutines
doty: doty
END: BEGIN, END
eval: Calling Perl from Perl | eval | eval, alarm (timeout)
exp: Numeric functions
fcntl: Raw Sockets, Spectra Client
fd_select(): Sockets, Modbus Implementation, fd_select()
getpwuid: getpwuid
grep: grep
hex: Numeric functions
int: Numeric functions
isatty: isatty
join: split | join
lc: uc, lc, ucfirst, lcfirst,
lcfirst: uc, lc, ucfirst, lcfirst,
length: Scalars | length
local: The Scope of Variables, | I/O Re-direction, local( *STDOUT)
localtime: localtime | stat, localtime
log: Numeric functions
map: map
mkdir: mkdir
my: The Scope of Variables,
numeric: Numeric functions
oct: Numeric functions
opendir: readdir
ord: chr, ord, character conversion
pack: pack, unpack
print: print, sprintf
rand: rand, srand | Numeric functions
readdir: readdir
ref: Meta Information, caller(), ref(),
rename: rename
require: require
select: Sleeping with a finer | Raw Sockets, Spectra Client
sin: Numeric functions
sort: sort
sotd: sotd
split: split | split
sprintf: print, sprintf
sqrt: Numeric functions
srand: rand, srand | Numeric functions
stat: stat, localtime
substr: substr
sysread: Raw Sockets, Spectra Client
system: System
syswrite: Raw Sockets, Spectra Client
tie: I/O Re-direction, local( *STDOUT)
time: time
times: times
uc: uc, lc, ucfirst, lcfirst,
ucfirst: uc, lc, ucfirst, lcfirst,
unlink: unlink
unpack: pack, unpack

handler

alarm: Alarm Handler
exit: Exit Handler

hash

Hashes

hashes of hashes

Nested Data Structures

here documents

Quotes

I/O redirection

I/O Re-direction, local( *STDOUT)

if

image name

Special Variables

INC

Include Path

inkey()

Reading single keystrokes, cbreak

interpolation

Quotes

IO::Select

Sockets, using IO::Socket::INET, TCP/IP | Sockets, using IO::Socket::INET, UDP, | Sockets, using IO::Socket::INET for

IO::Socket::INET

Sockets, using IO::Socket::INET, TCP/IP | Sockets, using IO::Socket::INET, UDP, | Sockets, using IO::Socket::INET for

list

Arrays

loops

Loops

memory allocation

Scalars

Modbus

Sockets, Modbus Implementation, fd_select()

modules

Packages, Modules

mv.pl

Rename files

nested data structures

Nested Data Structures

operator

bitwise: Bitwise Operators
comma: Miscellaneous Operators
comparison: Comparison Operators
conditional: Miscellaneous Operators
file test: File Test Operators
logical: Logical Operators
precedence: Precedence of Operators
range: Miscellaneous Operators

operators

Operators

parameter

passing: Subroutines

ping()

Pinging a host, system(),

processes, killing

Kill processes, yesno(), kill()

program name

Special Variables

PWD

chdir, $ENV{PWD}

quotes

Quotes

records

Nested Data Structures

ref

Meta Information, caller(), ref(),

regular expressions

Regular Expressions

greedy: Quantifiers, greedy, ungreedy
interpolation: Interpolation
minimal matching: Quantifiers, greedy, ungreedy
modifiers: Modifiers
quantifiers: Quantifiers, greedy, ungreedy
ungreedy: Quantifiers, greedy, ungreedy
variables: Variables

require

require | Packages, Modules

rm.pl

Remove many files, opendir()

script execution

Calling Perl from Perl

script name

Special Variables

serial line I/O

Serial line I/O, Elcomat,

setispeed

USB, select(), POSIX::Termios, baudrates

setospeed

USB, select(), POSIX::Termios, baudrates

shell

System

signal handling

Signal Handling

socket

Raw Sockets, Spectra Client

STDOUT, flushing output

Flushing Output

strings, case conversion

uc, lc, ucfirst, lcfirst,

strings, creating

chr, ord, character conversion

subroutine

reference: Closures, anonymous subroutines

subroutines

Subroutines

substitute.pl

Substitute strings in files,

substr

Execute a Perl code

symbol tables

Symbols Tables

sysopen

Serial line I/O, DMC, | Serial line I/O, I404,

sysread

Serial line I/O, DMC, | Serial line I/O, I404,

system()

Pinging a host, system(),

syswrite

Serial line I/O, DMC, | Serial line I/O, I404,

Termios

Serial line I/O, Elcomat, | Serial line I/O, DMC, | Serial line I/O, I404, | USB, select(), POSIX::Termios, baudrates

timeout

eval, alarm (timeout) | Timeout

truth

Truth

ttyS0

Serial line I/O, I404,

Umlaute

Replace blanks, ä, Ä,

undef

Subroutines

USB

USB, select(), POSIX::Termios, baudrates

wantarray

Subroutines

widget

Text: I/O Re-direction, local( *STDOUT)

yesno()

Kill processes, yesno(), kill()