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Utilizing multi core for tar+gzip/bzip compression/decompression
...n and vice versa.
p7zip
For p7zip for compression you need a small shell script like the following:
#!/bin/sh
case $1 in
-d) 7za -txz -si -so e;;
*) 7za -txz -si -so a .;;
esac 2>/dev/null
Save it as 7zhelper.sh. Here the example of usage:
$ tar -I 7zhelper.sh -cf OUTPUT_FILE.tar.7z pa...
How can I count the occurrences of a list item?
...at Counter is faster by a constant factor of approximately 2.
Here is the script I used:
from __future__ import print_function
import timeit
t1=timeit.Timer('Counter(l)', \
'import random;import string;from collections import Counter;n=1000;l=[random.choice(string.ascii_letters) f...
Is it possible to reference one CSS rule within another?
... do this:
$('.someDiv').css([".radius", ".opacity"]);
If you have a javascript that already processes the page or you can enclose it somewhere in <script> tags. If so, wrap the above in the document ready function:
$(document).ready( function() {
$('.someDiv').css([".radius", ".opacity"]...
How to return only the Date from a SQL Server DateTime datatype
...sequent queries, so throw out execution #1 if you like.
Here is full test script and performance results that prove DateDiff is substantially faster than converting to varchar.
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Sublime 3 - Set Key map for function Goto Definition
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@BorisSamardžija , also how do i make the above script look for the function definition in my current file rather than jumping to other external files.
– Alexander Solonik
Dec 8 '15 at 9:53
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How to run Gulp tasks sequentially one after the other
...g. return gulp.src('app/**/*.js').pipe(concat(app.js)).pipe(gulp.dest('app/scripts');, the key is to identify task one as a dependent when defining task two: gulp.task('two', ['one'], function() {... Task two will now wait for task one to end before running.
– esvendsen
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PDO get the last ID inserted
...I have a heavily trafficked website and I insert something during my login script and use lastInsertId() to get the inserted iD, but a lot of people are logging in at the same time, am I safe on relying on lastInsertId() to get the last inserted ID from that specific instance of code executing? Or d...
What are the most common SQL anti-patterns? [closed]
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My favorite is when people embed HTML AND javascript, e.g. SELECT '<a href=... onclick="">' + name ' </a>'
– Matt Rogish
Jan 14 '09 at 17:19
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Get application version name using adb
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If you want to get all package versions, try this awk script:
adb shell dumpsys package | awk '/^[ ]*Package \[.*\] (.*)/ { i = index($0, "[") + 1; pkg = substr($0, i, index($0, "]") - i); } /[ ]*versionName=/ { { print pkg "\t" substr($0, index($0, "=") + 1); pkg = ""; } }'
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Does svn have a `revert-all` command?
...e any new file not under version control. But you can easily write a shell script to do that like:
for file in `svn status|grep "^ *?"|sed -e 's/^ *? *//'`; do rm $file ; done
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