alvin alexander
Nodes for the term “perl”
A `printf` format reference page (cheat sheet) (C, Java, Scala, etc.)
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Perl array length (size)
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Perl string concatenation: How to concatenate strings with Perl
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Perl printf format examples (reference page)
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How to read Perl command-line arguments
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A Perl random integer example
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Perl ‘equals’ FAQ: What is true and false in Perl?
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How to remove extended ASCII characters from Unix files with the 'tr' command
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Remove non-printable ASCII characters from a file with this Unix command
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Perl array printing: How do I print the entire contents of an array with Perl?
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Perl “exec”: How to execute system commands
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Perl array copy example: How to copy an array in Perl
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Perl - How to compare a string against multiple patterns
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Perl split function - how to read a CSV file
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Perl random numbers (tutorial, examples)
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Perl uppercase and lowercase string conversion
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Perl program that reads a pipe-delimited file and prints HTML
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Perl - How to read from a named pipe (fifo)
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Perl code to read one line from a text file
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A Perl configuration file example
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Perl case-insensitive string array sorting
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Perl error: Can't locate module in @INC
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How to list Perl CGI environment variables
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Perl printing examples
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Perl: How to access shell environment variables through Perl associative arrays
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Perl best practice: prefer foreach to for
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Perl file moving: How to move a file using Perl
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Perl: How to test if a file exists
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Perl CSV file column extraction
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Perl array push and pop syntax and examples
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Perl array/sort FAQ - Perl integer array sorting
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Two more Textmate commands (capitalize, CSV to list)
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Perl if, else, elsif ("else if") syntax
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How to use the Perl ternary operator
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How do I make variables private to my Perl function?
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How to access arguments to a Perl subroutine or function
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Perl file test - How to determine whether you can read a file
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Put Perl test data in the same file as your source code
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Perl file test operators (reference)
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Perl delete - how to delete a file in a Perl script
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A Perl script to delete binary files
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A Perl script to convert Nagios/Unix epoch time to a human readable format
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Perl “file test” characters (for if/then tests)
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Perl comparison operators
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How to exclude certain elements in an array with pattern matching
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Perl split function - process every word in a file
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Where is Perl looking for modules to include?
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Perl: How to extract lines from the middle of a text file
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A Perl “read file into array” example
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How to embed data in your Perl program
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Perl files example - How to open and read data files with Perl
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How to print every element in a Perl array
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How to delete a list (collection) of files
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A Perl program to determine RSS readers from an Apache access log file
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A Perl trim function
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A Perl array 'contains' example
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Perl and Apache - How to parse Apache access log file records in Perl
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A Perl array chomp example
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A Perl “write to file” example
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Cato - A database CRUD assistant
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CodeMee.com - A socially-tagged source code search engine
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A Perl getopts example
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How to get SOAP::Lite working with the Apache CXF web service
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Perl 'split' function - how to process text data files
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Linux chmod - how to make a Perl script executable
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Perl print line example - How to print a specified line from a text file
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Perl read file example - How to print a range of lines from a text file
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Perl split function - How to process pipe-delimited text files
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A Perl temp file example
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Perl stat - How to determine the access or modification time of a file
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Perl stat - How to get the size of a file
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Perl file date tests - How to test when a file was last accessed or modified
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Perl file write test - How to determine if you can write to a file
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Perl - How to process every file in a directory
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Perl file copy - How to copy a file using Perl
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Perl - How to process every file in a directory that matches a pattern
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How to concatenate strings in Perl
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Perl sort array example - How to sort a Perl string array
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Perl substring - How to search for one string in another string
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Perl string array - How to create and use an array of strings
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Perl substr example - How to extract a substring from a string
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Perl - how to search a list of numbers with the grep function
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Perl environment variables - How to access Perl environment variables
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A review of five free text editors for Mac OS X (Part 3)
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A free Perl editor - Komodo Edit
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A Perl reverse array example - How to reverse file contents
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Perl array examples
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Perl hash add element - How to add an element to a Perl hash
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How to call a Perl subroutine (notes on the ampersand operator)
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Perl hash size - How to get the size of a hash in Perl
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My Perl hash tutorials
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The Perl exists function - test to see if a hash key exists
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Perl string length FAQ
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Perl loop - how to break out of a loop in Perl
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Perl next operator - for loop and if statement examples
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Perl string character processing - How to process every character in a string
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Perl grep array FAQ - How to search an array/list of strings
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Tue, Dec 31, 2002
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A Perl killall command
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Thu, Aug 7, 2003
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My Perl extract program (like head and tail)
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Apache access log - A Perl program to read an Apache access log file
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Checking to see if a Perl module is in your @INC path
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Perl flock - file locking with Perl
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Perl hash key - How to test to see if a Perl hash contains a given key
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Perl subroutine values - How to return multiple values from a Perl function
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A Perl module template (template code for a Perl module)
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Use File::Basename to separate a filename from its directory
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How to add an item to a Perl hash
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A Perl hash print example (printing hash elements)
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Perl hash remove - How to remove an item from a Perl hash
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Perl hash foreach and while - How to loop over a hash in Perl
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Perl array size/length - How to determine the size of a Perl array
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A perl function that runs a Unix command and returns its exit status
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The link popularity of OpenSSO, WebSeal, and web tools
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Perl for loop - How to do something for each element in an array
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Perl modules FAQ - What to do when Perl modules aren't in their normal locations
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A Perl DBI DBH MySQL example
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Perl CGI form example - a CGI.pm scrolling list
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A Perl CGI (CGI.pm) textarea example
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A Perl CGI (CGI.pm) textfield form example
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A Perl array and foreach example
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Perl subroutine - how to return multiple values
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Perl hash introduction tutorial
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The Perl unless operator
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The Perl until loop examples and syntax
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Perl loop examples - The Perl foreach, for, while, and until loops
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Perl subroutines - a Perl subroutine (sub) tutorial
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Perl hash - delete example
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A Perl reverse lines tip
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Wed, June 5, 2002
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Mon, June 17, 2002
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Tue, June 18, 2002
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A Perl extract program
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Perl file example - A program to extract lines from a file
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Perl exception handling
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Perl URL - an easy way to download URL contents
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Perl directory list - List all files that match a filename pattern
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Perl directories - How to work on each file in a directory
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Perl - How do I set environment variables?
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How to print a Perl array
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Perl array and foreach - How to operate on each Perl array element
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Where can I find the Perl FAQ?
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Use Perl here documents to print multiple lines of output
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Recent Perl tutorials (Tue, Aug 5, 2003)
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Perl escape sequences: Newline, tab, and other special characters
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Perl regular expressions: Common escape sequences
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A sample Perl CGI program that can be used to edit files on a web site
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Perl CGI environment variables example
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A Perl CGI environment variables script, and mkdir -p (Tue, June 29, 2004)
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Perl include path - how to print the Perl environment include path
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Perl Excel example - A Perl program to parse Microsoft Excel XLS files
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Perl array example - search replace in a Perl array
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Perl reverse - Reverse file contents with Perl
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How do I set environment variables in Perl programs?
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Perl hash sort - How to sort a Perl hash by the hash value
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Perl hash sort - How to sort a Perl hash by the hash key
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Perl directory list - How do to list all .html files in a directory
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A Perl function to prompt users during interactive command-line input
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Perl pipe - Reading from a pipeline with Perl
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Perl CGI cookies - How to get and set cookies in Perl CGI programs
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Perl CGI.pm example - a password field form
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Perl CGI.pm - a popup menu example
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Perl redirect - a Perl CGI redirect example
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Regular expression examples (common regex patterns)
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