5.5  Recipes

• Preface
• Iterate from 1 to n
• Iterate over a list
• Generate a list of numbers
• Capture text output from a shell command
• Compile and execute a string containing Mythryl source code
• Look up a key in the linux environment
• Print the script’s commandline arguments
• Compute the length of a string
• Compute the length of a list
• Read an int from a string
• Read a float from a string
• Read multiple numbers from a string
• Round a float to an int
• Sort a list of strings
• Sort a list of integers
• Sort a list of floats
• Sort a list of tuples or records
• Sort a list of strings, dropping duplicates
• Sort a list of integers, dropping duplicates
• Sort a list of floats, dropping duplicates
• Concatenate two lists
• Reverse a list
• Shuffle a list pseudo-randomly
• Get first element of list (Lisp CAR)
• Get rest of list (Lisp CDR)
• Prepend element to list (Lisp CONS)
• Select first/second element of each of a list of pairs
• Drop the first N characters of a string
• Drop last N characters of a string
• Extract a substring of string
• Explode a string into a list of characters
• Implode a list of characters into a string
• Reverse a string
• Force a string to upper case
• Force a string to lower case
• Force a list of strings to upper case
• Concatenate two strings
• Concatenate a list of strings
• Concatenate a list of strings, with a given separator
• Break a string into whitespace-separated words
• Break a string into colon-separated fields:
• Break some text into lines
• Regular expressions
• Read a text file
• Write a text file
• Append text to a file
• Filter a text file
• Delete a file
• Rename a file
• Check File Existence
• Check File Readability
• Get the size of a file
• Set file mode
• Get current directory
• Process contents of directories and directory trees
• Run a long-lived Linux subprocess
• Count the number of cores available on host
• Set the exit status of a Mythryl script or program