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How to assign the output of a command to a Makefile variable
...an "environment variable" to be set, then you have to export it.
my_shell_script
echo $MY_ID
would need this in the makefile
target:
export MY_ID=$(GENERATE_ID); \
./my_shell_script;
Hope that helps someone. In general, one should avoid doing any real work outside of recipes, beca...
HintPath vs ReferencePath in Visual Studio
... so you have to explicitly add it as parameter to the command line compile script.
– Christian
Apr 28 at 10:01
add a comment
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How do you Force Garbage Collection from the Shell?
...term web site for information about embedding this in bash/perl/ruby/other scripts. I've used popen2 in Python or open3 in Perl to do this.
UPDATE: here's a one-liner using jmxterm:
echo run -b java.lang:type=Memory gc | java -jar jmxterm-1.0-alpha-4-uber.jar -n -l host:port
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How to check if an option is selected?
...th you. Maybe those of us brought up on jQuery need to take a remedial JavaScript class. :)
– iambriansreed
Apr 18 '12 at 16:38
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How to disable an input type=text?
I want to disable writing in an input field of type text using JavaScript, if possible.
The input field is populated from a database; that is why I don't want the user to modify its value.
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How to drop into REPL (Read, Eval, Print, Loop) from Python code
Is there a way to programmatically force a Python script to drop into a REPL at an arbitrary point in its execution, even if the script was launched from the command line?
...
Camera access through browser
...te(this.data)"></device>
<video autoplay></video>
<script>
function update(stream) {
document.querySelector('video').src = stream.url;
}
</script>
If it is not, probably will work on ios6, more detail can be found at get user media
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Is there a way to create multiline comments in Python?
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Hm. I put a huge multiline string in a python script test.py just to see. When I do import test, a test.pyc file is generated. Unfortunately, the pyc file is huge and contains the entire string as plain text. Am I misunderstanding something, or is this tweet incorrect?
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Get program execution time in the shell
...
#!/bin/bash
START=$(date +%s)
# do something
# start your script work here
ls -R /etc > /tmp/x
rm -f /tmp/x
# your logic ends here
END=$(date +%s)
DIFF=$(( $END - $START ))
echo "It took $DIFF seconds"
s...
How to copy a directory structure but only include certain files (using windows batch files)
... I needed to copy all photos from folders and subfolders, this batch script helped. Just changed the line set FILENAMES_TO_COPY=data.zip info.txt above to set FILENAMES_TO_COPY=*.jpg
– Kai Noack
May 8 '16 at 20:48
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