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How to read a large file - line by line?
... for line in f:
# Do something with 'line'
The with statement handles opening and closing the file, including if an exception is raised in the inner block. The for line in f treats the file object f as an iterable, which automatically uses buffered I/O and memory management so you don't ...
How to output only captured groups with sed?
...as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
include on...
Global variables in Javascript across multiple files
...pers.js file. Simply create a script tag above the include for helpers.js and define it there.
<script type='text/javascript' >
var myFunctionTag = false;
</script>
<script type='text/javascript' src='js/helpers.js'></script>
...
<script type='text/javascript' ...
How to create a directory and give permission in single command
How to create a directory and give permission in single command in Linux?
8 Answers
8
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How do I install Maven with Yum?
...g not to learn much about either yum or maven. I've inherited this code and I don't want to spend more time than I have to in this environment.
...
Retrieve CPU usage and memory usage of a single process on Linux?
I want to get the CPU and memory usage of a single process on Linux - I know the PID. Hopefully, I can get it every second and write it to a CSV using the 'watch' command. What command can I use to get this info from the Linux command-line?
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In what cases could `git pull` be harmful?
I have a colleague who claims that git pull is harmful, and gets upset whenever someone uses it.
5 Answers
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Running Command Line in Java [duplicate]
Is there a way to run this command line within a Java application?
8 Answers
8
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How to do a Jquery Callback after form submit?
...").bind('ajax:complete', function() {
// tasks to do
});
And things worked perfectly .
See this api documentation for more specific details.
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Check if two linked lists merge. If so, where?
...wed" it was meant "you may change but in the end they should be restored", and
we could iterate the lists exactly twice
the following algorithm would be the solution.
First, the numbers. Assume the first list is of length a+c and the second one is of length b+c, where c is the length of their co...