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Check number of arguments passed to a Bash script
...
Just like any other simple command, [ ... ] or test requires spaces between its arguments.
if [ "$#" -ne 1 ]; then
echo "Illegal number of parameters"
fi
Or
if test "$#" -ne 1; then
echo "Illegal number of parameters"
fi
Suggestions
When in Bash,...
How to implement a queue using two stacks?
Suppose we have two stacks and no other temporary variable.
20 Answers
20
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What does the function then() mean in JavaScript?
...guration. Then based on that, we fetch
information about the current user, and then finally get the list of items for the current
user. Each xhrGET call takes a callback function that is executed when the server
responds.
Now of course the more levels of nesting we have, the harder the code is to r...
Renaming a branch in GitHub
...
As mentioned, delete the old one on GitHub and re-push, though the commands used are a bit more verbose than necessary:
git push origin :name_of_the_old_branch_on_github
git push origin new_name_of_the_branch_that_is_local
Dissecting the commands a bit, the git push ...
How to do a GitHub pull request
How do I create and/or send a pull request to another repository hosted on GitHub?
8 Answers
...
What languages are Windows, Mac OS X and Linux written in?
... was just wondering who knows what programming languages Windows, Mac OS X and Linux are made up from and what languages are used for each part of the OS (ie: Kernel, plug-in architecture, GUI components, etc).
...
What methods of ‘clearfix’ can I use?
...ut. My sidebar is floated, so my container div fails to wrap the content and sidebar.
29 Answers
...
Favourite performance tuning tricks [closed]
...
Here is the handy-dandy list of things I always give to someone asking me about optimisation.
We mainly use Sybase, but most of the advice will apply across the board.
SQL Server, for example, comes with a host of performance monitorin...
Installing PDO driver on MySQL Linux server
...long ago, to change my code to use PDO in order to parameterize my queries and safely save HTML in the database.
6 Answers
...
What is the naming convention in Python for variable and function names?
Coming from a C# background the naming convention for variables and method names are usually either camelCase or PascalCase:
...