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Posts Tagged ‘bash’

Command line Clipboard for macOS, Cygwin, and Linux

25 Mar

I use the command line a lot, even though I am on a graphical user-interface (GUI) on Windows, macOS, or Linux. And since I’m lazy, I write a lot of scripts to perform repetitive tasks. I stumbled across macOS commands that allow command line programs to copy/paste between the clipboard that we’re so used to using.

macOS pbpaste and pbcopy

macOS has two commands, pbpaste and pbcopy, which “paste” from the pasteboard to stdout and copies from stdin to the pasteboard, respectively. Read the rest of this entry »

 
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Posted in Programming Recipes, Technical

 

Bash recipe: Script call-stack

25 Mar
Bash logoHere’s a little recipe for printing a “call-stack” for Bash scripts. A call-stack is normally the list of nested function calls. This recipe will utilize the BASH_SOURCE, BASH_LINENO, and FUNCNAME environment variables, set by Bash during script executions, to display a call-stack of one script to another, excluding function calls; this will show only the invocations of one script to another. Read the rest of this entry »
 
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Posted in Programming Recipes

 

Activating OS X’s Builtin Apache Web Server and PHP

14 Jan

As I mentioned in my prior post OS X Command-line Dev Tools—Install Shortcut, OS X comes with a variety of built-in tools suited for developers. Unfortunately, Apple has seen fit to hide one of the most important of them: the web server. Despite that, they are easily unlocked if you know how. This applies to Mountain Lion (10.8) and (though I haven’t tried it, yet) Mavericks (10.9). Though you can install separate installations, I don’t like to install anything extra, unless I must. Read the rest of this entry »

 
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Posted in Programming, Technical

 

Self-documenting Bash Scripts Using Heredoc

22 Jul

It is surprising how quickly we forget how to use scripts we had written, let alone, what they were for. So it is even more difficult for others to know how and whether to use your script. You can avoid wasting the efforts you put into the problems you solved with your script by simply adding some friendly “help” output.

Here is some basic information you should include:

  • Summary description
  • Form of use—basic syntactic usage
  • Description of usage syntax; i.e., input parameters
  • More detailed information, if necessary. Read the rest of this entry »
 
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Posted in Programming, Programming Recipes