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Count occurrences of a char in plain text file
...e and customize, this is about three times (sorry, edit! botched the first test) faster than Vereb's answer.
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How do I get time of a Python program's execution?
... @Nicojo Very helpful. I have a question on how can i use this code to test for example the time for a loop execution. suppose I have a function incuding a loop, and i want to get the time spent by this loop
– moudi
Jun 13 '19 at 18:48
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Using Git, show all commits that are in one branch, but not the other(s)
... Note that git log foo..bar will show the commits between bar's latest and foo's latest, but not other commits missing from further back in time. To see everything in bar but not in foo, you should use @jimmyorr's solution.
– Paul A Jungwirth
Jul 10 '1...
how to check redis instance version?
...t can be run even when the server is down (e.g. in a Jenkins pipeline when testing a Redis container), while redis-cli info <subinfo> will succeed only in a complete working setup, with redis-server running and responsive and with open network connectivity between redis-cli and redis-server
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How do I use a file grep comparison inside a bash if/else statement?
.... error
fi
For the record, [ expr ] is a shell builtin† shorthand for test expr.
Since grep returns with status 0 in case of a match, and non-zero status in case of no matches, you can use:
if grep -lq '^MYSQL_ROLE=master' ; then
# do one thing
else
# do another thing
fi
Note the us...
Allow user to select camera or gallery for image
... (ImagePicker.java) and what value it is returning? In which phone are you testing?
– Mario Velasco
Nov 2 '15 at 12:37
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Is an empty href valid?
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I have not tested this, but I suspect that href="javascript:;" would violate the Content Security Policy that disallows inline JavaScript. If you intend to turn on this policy, I would use one of the alternatives.
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Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
...mething from the XIB is cached on the simulator, which is a pain if you're testing upgrades since you actually don't want to have to delete the old app.
– Carlos P
Jul 31 '13 at 11:14
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How do I specify a password to 'psql' non-interactively?
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@JacquesGaudin yep tested myself! Thank you!
– the_ccalderon
May 3 '19 at 19:28
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How to gzip all files in all sub-directories into one compressed file in bash
...le, this solution is useful if you want to pass arguments to gzip (e.g., --test or --best), since afaik even GNU tar doesn't provide a way to send arguments to gzip.
– Timothy Woods
Oct 4 '13 at 18:46
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