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How to comment out a block of Python code in Vim
...rst column of the first line you want to comment.
Step 2: Press: Ctrl+v and select the lines you want to comment:
Step 3: Shift-I#space (Enter Insert-at-left mode, type chars to insert. The selection will disappear, but all lines within it will be modified after Step 4.)
Step 4: Esc
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Make header and footer files to be included in multiple html pages
I want to create common header and footer pages that are included on several html pages.
11 Answers
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MPICH vs OpenMPI
Can someone elaborate the differences between the OpenMPI and MPICH implementations of MPI ?
Which of the two is a better implementation ?
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What is the difference between exit() and abort()?
In C and C++, what is the difference between exit() and abort() ? I am trying to end my program after an error (not an exception).
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How to set JAVA_HOME in Linux for all users
I am new to Linux system and there seem to be too many Java folders.
20 Answers
20
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What is the difference between user variables and system variables?
What is the difference between user variables such as PATH , TMP , etc. and system variables?
5 Answers
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Rearrange columns using cut
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For the cut(1) man page:
Use one, and only one of -b, -c or -f. Each LIST is made up of
one
range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It ...
What's a concise way to check that environment variables are set in a Unix shell script?
...(an empty string) is OK — not exactly what you want, but the alternative and older notation.
The second variant (using :?) requires DEST to be set and non-empty.
If you supply no message, the shell provides a default message.
The ${var?} construct is portable back to Version 7 UNIX and the Bourne ...
Visual Studio Editor does not underline errors anymore
... or the MVC Beta (which I guess is unlikely). Furthermore have I installed and uninstalled both CodeRush and Resharper for evaluation purposes (decided not to keep either one of them).
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Is it possible to have multiple statements in a python lambda expression?
...s a version of sort that creates a new list, rather than sorting in-place, and can be chained. Note that this is probably what you should be using - it's bad practice for your map to have side effects on the original list.
Q. How should I get the second lowest item from each list in a sequence of ...