Python Class Based Decorator with parameters that can decorate a method or a function
I’ve seen many examples of Python decorators that are:
function
int([x[, base]]). Square brackets in functions in Python documentation?
When one or more top-level parameters have the form parameter =
expression, the function is said to have “default parameter values.”
For a parameter with a default value, the corresponding argument may
be omitted from a call, in which case the parameter’s default value is
substituted. If a parameter has a default value, all following
parameters must also have a default value — this is a syntactic
restriction that is not expressed by the grammar.
Executing a Bash Script Function with Sudo
I have a script that does a number of different things, most of which do not require any special privileges. However, one specific section, which I have contained within a function, needs root privileges.
Stateful bash function
I’d like to implement a function in Bash which increases (and returns) a count with every call. Unfortunately this seems non-trivial since I’m invoking the function inside a subshell and it consequently cannot modify its parent shell’s variables.
Why write an entire bash script in functions?
At work, I write bash scripts frequently. My supervisor has suggested that the entire script be broken into functions, similar to the following example:
How to set an alias on a per-directory basis?
Suppose you have an alias go, but want it to do different things in different directories?
Alias and functions
From the bash manual
Can I “export” functions in bash?
source some_file some_file: doit () { echo doit $1 } export TEST=true If I source some_file the function “doit” and the variable TEST are available on the command line. But running this script: script.sh: #/bin/sh echo $TEST doit test2 Will return the value of TEST, but will generate an error about the unknown function “doit”. … Read more
How to pass parameters to function in a bash script?
I’d like to write a function that I can call from a script with many different variables. For some reasons I’m having a lot of trouble doing this. Examples I’ve read always just use a global variable but that wouldn’t make my code much more readable as far as I can see.
Running an executable in PATH with the same name as an existing function
Sometimes I define a function that shadows an executable and tweaks its arguments or output. So the function has the same name as the executable, and I need a way how to run the executable from the function without calling the function recursively. For example, to automatically run the output of fossil diff through colordiff and less -R I use: