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Prints machine hardware name (same as uname -m) basename: Removes the path prefix from a given pathname chroot: Changes the root directory date: Prints or sets the system date and time dirname: Strips non-directory suffix from file name du: Shows disk usage on file systems echo: Displays a specified line of text env: Displays and modifies ...
defines a variable named array (or assigns a new value to an existing variable with the name array) which is an array consisting of the values 1, 3, 5, 7, and 9. That is, the array starts at 1 (the initial value), increments with each step from the previous value by 2 (the increment value), and stops once it reaches (or is about to exceed) 9 ...
)VARS a system function in APL, [15])VARS shows user variable names existing in the current workspace. There are also system functions available to users for saving the current workspace e.g., )SAVE and terminating the APL environment, e.g., )OFF - sometimes called hook commands or functions due to the use of a leading right parenthesis or hook ...
The choice of a variable name should be mnemonic — that is, designed to indicate to the casual observer the intent of its use. One-character variable names should be avoided except for temporary "throwaway" variables. Common names for temporary variables are i, j, k, m, and n for integers; c, d, and e for characters. int i;
Display the current working directory physical path - without symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/realdir pwd -L: Display the current working directory logical path - with symbolic link name, if any.
The name of the registry was a playful reference to IANA, the central registry of names and numbers used in the Internet. In 2002, LANANA became an official workgroup of the Free Standards Group. As of 2024, the official registry of allocated device numbers and /dev directory is in the Linux kernel documentation in The Linux kernel user's and ...
To the right is a workspace pane. Selecting a name in the list replaces the workspace's contents with a print string of the selected variable. Editing and "accepting" the text in the workspace pane when an instance variable is selected will assign the result of the evaluation to the selected variable.
A metasyntactic variable is something that stands for another piece of text. For example, you should use a metasyntactic variable in the documentation of a function to describe the arguments that are passed to that function. Do not use @var for the names of particular variables in programming languages. These are specific names from a program ...