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How can I quickly sum all numbers in a file?
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Your awk script should execute a bit faster if you use $0 instead of $1 since awk does field splitting (which obviously takes time) if any field is specifically mentioned in the script but doesn't otherwise.
– Ed...
How can I add remote repositories in Mercurial?
...oks]
changegroup = hg update 2>&1 > /dev/null && path/to/script/restart-server.sh
Not everyone is a big fan of having remote repos automatically update their working directories on push, and it's certainly not the default.
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How to close this ssh tunnel? [closed]
... ssh tunnel $pid"
kill $pid
Or better yet, just create this as a wrapper script:
# backend-tunnel <your cmd line, possibly 'bash'>
ssh -N -L1234:other:1234 server &
pid=$!
echo "waiting a few seconds to establish tunnel..."
sleep 5
"$@"
echo "killing ssh tunnel $pid"
kill $pid
backend...
How can I select random files from a directory in bash?
... How can I select a random sample of N files through using either a bash script or a list of piped commands?
12 Answers
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How do I debug Node.js applications?
... as part of the Google Chrome Developer Tools can be used to debug Node.js scripts. A detailed explanation of how this works can be found in the Node.js GitHub wiki.
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asp.net mvc: why is Html.CheckBox generating an additional hidden input
...o, new {value = Model.Foo, onchange = "toggleCheck(this)" }). Then in javascript function ToggleCompleted(el) { var checked = $(el).is(':checked'); $('#Foo').val(checked); }
– John81
Jul 6 '18 at 12:15
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What's the difference between `raw_input()` and `input()` in Python 3?
...ur code is running with python2 and python3, use function input () in your script and add this to begin of your script:
from sys import version_info
if version_info.major == 3:
pass
elif version_info.major == 2:
try:
input = raw_input
except NameError:
pass
else:
pri...
Java - sending HTTP parameters via POST method easily
...t. Very succinct; lots of syntactical sugar; if you use Java as a bit of a scripting language as I do then it's a great library for very quickly and efficiently adding some http interactions. Zero boilerplate is valuable at times and it may have been useful to the OP.
– Dean
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remove nuget package restore from solution
...actually have a blog post about it and at the end of the post a powershell script was mentioned to help with the migration.
http://docs.nuget.org/docs/workflows/migrating-to-automatic-package-restore
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How to change Elasticsearch max memory size
...re referred to some previous distribution.
On Debian 8 modify the service script normally place in /usr/lib/systemd/system/elasticsearch.service, and add Environment=ES_HEAP_SIZE=8G
just below the other "Environment=*" lines.
Now reload the service script with systemctl daemon-reload and restart ...