Keywords

main page

"
- - First script
#
- - Comments
$
- - Sigils and variables
  - Opening a file - error handling
$#array
- - Array index (menu)
$/
- - slurp mode
$0
- - Command line parameters
$_
- - default variable $_
$a
- - Sort
$array[-1]
- - Array index (menu)
$array[0]
- - Array index (menu)
$AUTOLOAD
- - AUTOLOAD
$b
- - Sort
$ENV{HOME}
- - UNIX commands from the inside
$SIG
- - Signals and the kill function
  - Catch and log warnings
%
%ENV
- - UNIX commands from the inside
%SIG
- - Signals and the kill function
&
- - Sigils and variables
  - Bitwise Operations
&&
- - Boolean expressions (logical operators)
>>
- - Bitwise Operations
<<
- - Here documents - double quotes
  - Bitwise Operations
<=>
- - Sort
<STDIN>
- - User Input
()
- - List Literals, list ranges
*
- - Sigils and variables
  - Numerical Operators
**
- - Numerical Operators
*=
- - Numerical Operators
+
- - Numerical Operators
++
- - Autoincrement
-
- - Numerical Operators
--
- - Autoincrement
-a
- - One-liner: print the 3rd field of every line in a CSV file
-d
- - File test or -X operators
-d|options
- - Debugging
-e
- - File test or -X operators
-E
- - One-liner: print
-e|command line
- - One-liner: print
-e|options
- - Perl on the command line
-f
- - File test or -X operators
-F
- - One-liner: print the 3rd field of every line in a CSV file
-i
- - One-liner: Replace a string in many files
  - One-liner: Change encoding
-M
- - File test or -X operators
  - One-liner: Change encoding
-n
- - One-liner: print the 3rd field of every line in a CSV file
-p
- - One-liner: Replace a string in many files
  - One-liner: Change encoding
-v|options
- - Perl on the command line
-w|options
- - Safety net
-|
- - Open pipe for reading
.
- - String Operators
..
- - List Literals, list ranges
/
- - Numerical Operators
;
- - First script
<=
- - Comparison operators
=
- - Numerical Operators
==
=head1
- - POD - Plain Old Documentation
=head2
- - POD - Plain Old Documentation
? :
- - Ternary operator
@
- - Sigils and variables
  - Create an Array, loop over with foreach
@ARGV
- - Command line parameters
\@
- - Debugging an array
  - Advanced: Multi dimensional array
\n
- - First script
\|reference
- - Process command line parameters, use modules
^
- - Bitwise Operations
__DIE__
- - Logging Exceptions
__WARN__
- - Catch and log warnings
``
- - Running External Programs
and
- - Boolean expressions (logical operators)
append
- - Opening a file
array slices
- - Array slices
ASCII
- - Comparison operators
assignment
- - Numerical Operators
associative array
- - What is a hash?
attribute
- - Moose Attribute
attributes|dbi
- - Attributes
auto-decrement
- - Autoincrement
auto-increment
- - Autoincrement
AutoCommit
- - Attributes
autodie
- - autodie
AUTOLOAD
- - AUTOLOAD
automatic conversion
- - String - Number conversion
basename
- - More UNIX commands implemented in modules
BEGIN
- - Compilation phases: BEGIN, CHECK, INIT, END
begin_work
- - Transactions
bitwise
- - Bitwise Operations
boolean values
- - Boolean values: TRUE and FALSE
caller
- - caller
Carp
- - Carp
carp
- - Carp
Carp::Clan
- - Carp::Clan
catch
- - Exception handling with Try::Tiny
catfile
- - File::Spec
cd
- - UNIX commands from the inside
CGI
- - Generate web page
chdir
- - UNIX commands from the inside
CHECK
- - Compilation phases: BEGIN, CHECK, INIT, END
chmod
- - UNIX commands from the inside
chomp
- - chomp
chown
- - UNIX commands from the inside
chr
- - ASCII table
ClickMouseButton
- - Closing the window
closure
- - Closures
cmp
- - Sort
coercion
- - Moose Attribute - coercion
commit
- - Transactions
comparison operators
- - Comparison operators
connect
- - Connect to database
context
- - LIST and SCALAR context
copy
- - More UNIX commands implemented in modules
cp
- - More UNIX commands implemented in modules
croak
- - Carp
CSV
- - process CSV file
  - One-liner: print the 3rd field of every line in a CSV file
csv
- - Process multi field csv file
  - Read CSV file as array of hashes
cwd
- - More UNIX commands implemented in modules
Data::Dumper
database
- - Database access using DBI and DBD::SQLite
DBD
- - Database access using DBI and DBD::SQLite
dbd
- - Architecture of a DBI Application
DBI
- - Database access using DBI and DBD::SQLite
dbi
- - Architecture of a DBI Application
debug
- - Debugging
defined
- - Boolean values: TRUE and FALSE
del
- - UNIX commands from the inside
delete
- - exists, delete hash element
Devel::ptkdb
- - Debugging
df
- - Reporting file system diskspace usage (df)
diagnostics
- - Safety net
  - splain and use diagnostics
die
- - die, warn, exit
die|catching
- - Error handling with eval - files
dirname
- - More UNIX commands implemented in modules
disconnect
- - Disconnect from the database
distinct
- - Uniq with List::MoreUtils
du
- - Reporting diskspace usage on the mail server
  - A du like script
Dumper
- - Debugging an array
else
- - Syntax of if statement
elsif
- - Syntax of if statement
Encode
- - One-liner: Change encoding
END
- - Compilation phases: BEGIN, CHECK, INIT, END
eof
- - Reading from file, read, eof
eq
- - Comparison operators
eval
- - eval block
eval {};
- - Error handling with eval - files
Excel
- - Read Excel file
Exception::Class
- - Exception::Class
exists
- - exists, delete hash element
exit
- - die, warn, exit
FALSE
- - Boolean values: TRUE and FALSE
FATAL
- - Fatal warnings
FetchHashKeyName
- - Attributes
File::Find
- - Change Copyright text in every source file in a directory hierarchy
  - Solutions: Tree
File::Find::Rule
- - Solutions: Tree
File::Slurp
- - File::Slurp
File::Spec
- - File::Spec
filter
- - grep
find
- - Change Copyright text in every source file in a directory hierarchy
for
- - loop over elements of list with foreach
  - for loop
foreach
- - loop over elements of list with foreach
fork
functions
- - Subroutines
GET
- - Fetch web page
GetChildWindows
- - Fetch the list of Child Windows
GetInputFocus
- - X11: Launch the application
Getopt::Long
- - Process command line parameters, use modules
GetWindowName
- - Fetch the list of Child Windows
GetWindowPos
- - Let's see the coordinates
glob
- - UNIX commands from the inside
  - One-liner: Rename many files
gmtime
- - The year 19100
grep
hash
- - What is a hash?
hash slices
- - Hash slices
here document
- - Here documents - double quotes
HTML::Template
- - Generate web page
http
- - Fetch web page
if
- - Conditional statements: if
indentation
- - Conditional statements: if
  - Syntax of if statement
index
- - String functions (index, rindex)
INIT
- - Compilation phases: BEGIN, CHECK, INIT, END
INSERT
- - INSERT
interpolation|scalar
- - Greeting with a name, Variable interpolation
is_number
- - Load Module
join
- - Join
keys
- - Fetching data from hash
kill
- - Signals and the kill function
last
- - Loop controls: next, last
lc
- - String functions (length, lc, uc, index)
lcfirst
- - String functions (length, lc, uc, index)
LDAP
- - Net::LDAP
LDTP
- - LDTP - Linux Desktop Testing Project
length
- - String functions (length, lc, uc, index)
link
- - UNIX commands from the inside
LIST
- - LIST and SCALAR context
LIST context
- - SCALAR and LIST Context
List::MoreUtils
- - Uniq with List::MoreUtils
ln
- - UNIX commands from the inside
local
- - Saved variable: local
localtime
- - The year 19100
Log::Dispatch
- - Log::Dispatch
Log::Log4perl
- - Log::Log4perl easy
looks_like_number
- - Load Module
ls
- - Rename files
lstat
- - stat, lstat
lt
- - Comparison operators
LWP::Simple
- - Fetch web page
mail
- - Send e-mail
Mail::Sendmail
- - Send e-mail
map
MCE
- - MCE - Many-Core Engine
  - MCE - map running in parallel
MIME
- - Send files by e-mail
Modern::Perl
- - Modern::Perl
move
- - More UNIX commands implemented in modules
MoveMouseAbs
- - Where is this top left corner ?
mv
- - More UNIX commands implemented in modules
my
- - Scalar variables (use my)
NAME_lc
- - SELECT, using hashref
  - Attributes
ne
- - Comparison operators
Net::LDAP
- - Net::LDAP
next
- - Loop controls: next, last
no warnings
- - Turn off warnings selectively and in a small scope
not
- - Boolean expressions (logical operators)
number
- - First script
open
- - Opening file for reading
  - Always open files in the new way
opendir
- - Directory handles
operator associativity
- - Numerical Operators
operator precedence
- - Numerical Operators
operators|numerical
- - Numerical Operators
operators|string
- - String Operators
or
- - Boolean expressions (logical operators)
ord
- - ASCII table
Perl::Critic
- - Perl::Critic
Perl::Tidy
- - Perl::Tidy
perlcritic
- - Perl::Critic
perldoc
- - Perl documentation
perltidy
- - Perl::Tidy
placeholder
- - SELECT, prepare with placeholders
POD
- - POD - Plain Old Documentation
pop
- - pop, push
POSIX
- - Active non-blocking waiting with waitpid
print
- - First script
  - Numerical Operators
PrintError
- - Attributes
push
- - pop, push
pwd
- - More UNIX commands implemented in modules
q
- - Strings - Single quoted
qq
- - Strings - Double quoted
queue
- - queue (shift, push)
qw
- - List Literals, list ranges
qx
- - Running External Programs
RaiseError
- - Attributes
rand
- - Fork random and seed
read
- - Reading from file, read, eof
readdir
- - Directory handles
readlink
- - UNIX commands from the inside
recursive
- - Recursive subroutines: factorial
rename
- - UNIX commands from the inside
  - One-liner: Rename many files
return
- - Subroutines
return|list
- - Return a list
reverse
- - reverse
rindex
- - String functions (index, rindex)
rm
- - UNIX commands from the inside
rmdir
- - UNIX commands from the inside
rollback
- - Transactions
say
- - First say
SCALAR
- - LIST and SCALAR context
SCALAR context
- - SCALAR and LIST Context
scalar variables
- - Scalar variables (use my)
scalar()
- - Context Sensitivity
Scalar::Util
- - Load Module
scope
- - Scope of variables
seek
- - tell, seek
SELECT
- - SELECT with one result
SendKeys
- - Closing the window
sendmail
- - Send e-mail
sh-bang
- - First script
shift
- - shift, unshift
short circuit
- - Your Salary is in Danger - Short-Circuit
shorthand
- - Numerical Operators
slurp
- - slurp mode
  - File::Slurp
sort
- - Sort
sort keys
- - Fetching data from hash
spaceship operator
- - Sort
splain
- - splain and use diagnostics
splice
- - splice
split
- - process CSV file
SQLite
- - Database access using DBI and DBD::SQLite
sqlite
- - Create Sample Database
srand
- - Fork random and seed
stack
- - stack (pop, push) Reverse Polish Calculator
StartApp
- - X11: Launch the application
stat
- - stat, lstat
static variable
- - Static variable
STDERR
- - die, warn, exit
STDIN
- - User Input
strict
- - Safety net
  - Always use strict and warnings
string
- - First script
sub
- - First sub
  - Subroutines
subroutines
- - Subroutines
substr
- - String functions (substr)
subtype
- - Moose Attribute - create your own subtype
symlink
- - UNIX commands from the inside
system
- - Running External Programs
tell
- - tell, seek
ternary operator
- - Ternary operator
Text::CSV
- - process csv file using Text::CSV
  - process csv file using Text::CSV
Text::CSV_XS
- - process csv file using Text::CSV
  - process csv file using Text::CSV
throw
- - Exception::Class
Tie::File
- - Tie::File
time
- - The year 19100
TraceLevel
- - Attributes
transactions
- - Transactions
tree
- - Exercise: Tree
TRUE
- - Boolean values: TRUE and FALSE
truncate
- - truncate
try
- - Exception handling with Try::Tiny
Try::Tiny
- - Exception handling with Try::Tiny
try|eval
- - Error handling with eval - files
type
- - Moose Attribute Type
type constraint
- - Moose Attribute Type class
uc
- - String functions (length, lc, uc, index)
ucfirst
- - String functions (length, lc, uc, index)
undef
- - Common error messages
  - Boolean values: TRUE and FALSE
uniq
- - Uniq with List::MoreUtils
unique
- - Unique values
unlink
- - UNIX commands from the inside
unshift
- - shift, unshift
UPDATE
- - UPDATE
use
- - Process command line parameters, use modules
variable interpolation
- - Numerical Operators
waitpid
- - Active non-blocking waiting with waitpid
WaitWindowViewable
- - X11: Launch the application
wantarray
- - wantarray
warn
- - die, warn, exit
warnings
- - Safety net
  - Always use strict and warnings
web
- - Fetch web page
while
- - Process an entire file line by line (while, cat)
WNOHANG
- - Active non-blocking waiting with waitpid
write
- - Opening a file
x
- - String Operators
X11
- - X11
X11::GUITest
- - X11::GUITest
xcalc
- - X11
XML
- - Parse XML file
XML::Simple
- - Parse XML file
xor
- - Boolean expressions (logical operators)
|
- - Bitwise Operations
|-
- - Open pipe for writing
||
- - Boolean expressions (logical operators)
~
- - Bitwise Operations