Personal Perl FAQ

List operations:

• Choosing only unique lines from a list, and reversing their order
• Loading a list of all lines from a file into a list
• to extract all lines containing text between two patterns

• reading lines from a file
• Loading a list of all lines from a file into a list
• Using FileHandle; running an R process

• to get the command line arguments into a perl script

• substituting within a string
• Some more substituting (tr)
• grepping and substituting in a string
• to extract all lines containing text between two patterns
• Parsing Geoff's input files to html, demonstrating
  • converting a string to an integer
  • splitting strings according to a pattern
• combining to form a string

• foreach looping
• Some other example looping

• Unless
• If
• If-elif-else

• Forking
• Forking 2

• To kill a script in the middle (e.g. testing purposes)
• Example usage help for scripts