Bash functions, unlike functions in most programming languages do not allow you to return a value to the caller. When a bash function ends its return value is its status: zero for success, non-zero ...

Bash provides a way to create functions, groups of commands that can be set up inside a script and invoked as a group. Functions can therefore be run as often or as infrequently as needed.

Bash functions can group related commands in Linux and run them as frequently or infrequently as needed. They can also make scripts more readable by organizing commands by the roles they play.

It turns out, some of the limits of bash are really limits of older shells and people code to that to be compatible. Still other perceived issues are because some of the advanced functions in bash ...

To find the documentation for the built-in version of printf, just search for "printf" in the bash man page. In case you're completely unfamiliar with the printf command, and similar functions in ...

That's because the idiomatic way wouldn't be to use a bash function, but, instead, something like sed, grep, or Perl. You might want to look into the 'awk' utility, which is typically capable of ...

Pretty much every programming language (with a few exceptions, like stackless python, and other stackless languages) that support functions, use a concept of a call stack to track what code they ...

All told, they carry out 12,391 separate functions. The functions are also connected. If Linux carries out one function, the system will direct the computer to carry out other functions.

The interactive map depicts the major levels of abstraction and functionalities, dotted with over 400 prominent functions from the Linux kernel, which are also links to a cross-reference site so ...