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Bash syntax error: unexpected end of file
...se this as well
tip: use trap to debug, if your script is huge...
e.g.
set -x
trap read debug
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Is there a TRY CATCH command in Bash
...xception
}
Also bash contains some error handling mechanisms, as well
set -e
it stops your script if any simple command fails.
And also why not if...else. It is your best friend.
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How to convert list of tuples to multiple lists?
...eturn xs, ys
if __name__ == '__main__':
from timeit import timeit
setup_string='''\
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
from __main__ import t1, t2, t3
'''
print(f'zip:\t\t{timeit('t1(zs)', setup=setup_string, number=1000)}')
print(f'...
How can I use “:” as an AWK field separator?
...
You have multiple ways to set : as the separator:
awk -F: '{print $1}'
awk -v FS=: '{print $1}'
awk '{print $1}' FS=:
awk 'BEGIN{FS=":"} {print $1}'
All of them are equivalent and will return 1 given a sample input "1:2:3":
$ awk -F: '{print $1}' ...
How can I get the behavior of GNU's readlink -f on a Mac?
On Linux, the readlink utility accepts an option -f that follows additional links. This doesn't seem to work on Mac and possibly BSD based systems. What would the equivalent be?
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How to ignore xargs commands if stdin input is empty?
... error code for no matching lines, so only activate error checks from here
set -e
set -o pipefail
echo $stdin | /usr/bin/xargs $@
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Redirecting stdout to “nothing” in python
... Sure, just save a reference to the original sys.stdout and set it back after. For example old_stdout = sys.stdout before any of the other code, then sys.stdout = old_stdout when you are done.
– Andrew Clark
Aug 20 '14 at 21:05
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Equivalent of String.format in jQuery
I'm trying to move some JavaScript code from MicrosoftAjax to JQuery. I use the JavaScript equivalents in MicrosoftAjax of the popular .net methods, e.g. String.format(), String.startsWith(), etc. Are there equivalents to them in jQuery?
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Outputting data from unit test in python
...message. To get msg appended to the normal error message, you also need to set TestCase.longMessage to True
– Catalin Iacob
Oct 21 '15 at 9:08
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Find files containing a given text
...hp|.html|.js containing the case-insensitive string "document.cookie" | "setcookie"
6 Answers
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