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eval command in Bash and its typical uses
...e a system that uses a collection of environment variables, and you have a script or program that determines which ones should be set and their values. Whenever you run a script or program, it runs in a forked process, so anything it does directly to environment variables is lost when it exits. But ...
What is the most useful script you've written for everyday life? [closed]
Just wondering what little scripts/programs people here have written that helps one with his or her everyday life (aka not work related).
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Getting Python error “from: can't read /var/mail/Bio”
I am running a (bio)python script which results in the following error:
6 Answers
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Test for existence of nested JavaScript object key
...r Steele:
var level3 = (((test || {}).level1 || {}).level2 || {}).level3;
alert( level3 );
In fact that whole article is a discussion of how you can do this in javascript. He settles on using the above syntax (which isn't that hard to read once you get used to it) as an idiom.
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Why use make over a shell script?
Make seems to me simply a shell script with slightly easier handling of command line arguments.
5 Answers
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Is there a link to the “latest” jQuery library on Google APIs? [duplicate]
I use the following for a jQuery link in my <script> tags:
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Why do you need ./ (dot-slash) before executable or script name to run it in bash?
When running scripts in bash, I have to write ./ in the beginning:
9 Answers
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Twitter Bootstrap Customization Best Practices [closed]
...es for all Less files i am customizing: Such as: "variables-custom.less", "alerts-custom.less", "buttons-custom.less". So i can use some standards and have my own additions. The downside is: When Bootstrap will be update it's really hard to migrate.
But there is something else:
Override Styles
W...
Exporting a function in shell
...n.
So, you can place all your functions in a location in FPATH, and child scripts will also be able to find it.
You can use the autoload command in shell scripts to load the functions you require:
autoload fun_a fun_b
In zsh, autoload is required for FPATH to work. In ksh and its close relativ...
What is the “assert” function?
...ate is used. If the variable ever does become negative, the assert() macro alerts you. You can then examine the relevant code to locate the cause of the problem.
To see how assert() works, run the sample program below. If you enter a nonzero value, the program displays the value and terminates norm...