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Running multiple commands in one line in shell
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edited Apr 26 '14 at 1:06
answered Feb 27 '11 at 1:44
Ma...
Why there is no “Home” button in iPad simulator in iOS 5.1 SDK?
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310
Use the Hardware > Home menu item, or hit Cmd + Shift + H
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matplotlib colorbar for scatter
...import matplotlib.pyplot as plt
cm = plt.cm.get_cmap('RdYlBu')
xy = range(20)
z = xy
sc = plt.scatter(xy, xy, c=z, vmin=0, vmax=20, s=35, cmap=cm)
plt.colorbar(sc)
plt.show()
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HMAC-SHA1 in bash
...cript.
[me@home] echo -n "value" | openssl dgst -sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Or simply:
[me@home] echo -n "value" | openssl sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Remember to use -n with echo or else a line break character is appended to the str...
Strange function in ActivityManager: isUserAMonkey. What does this mean, what is its use?
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answered Oct 17 '11 at 10:02
HefferWolfHefferWolf
3,7042020 silver badges2929 bronze badges
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grep without showing path/file:line
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edited May 3 '18 at 6:04
Dominic Rodger
87.2k2828 gold badges185185 silver badges205205 bronze badges
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Chrome Developer Tools: How to find out what is overriding a CSS rule?
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answered Dec 13 '12 at 20:03
josh3736josh3736
120k2323 gold badges198198 silver badges245245 bronze badges
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Python speed testing - Time Difference - milliseconds
...e.datetime.now()
>>> c = b - a
>>> c
datetime.timedelta(0, 4, 316543)
>>> c.days
0
>>> c.seconds
4
>>> c.microseconds
316543
Be aware that c.microseconds only returns the microseconds portion of the timedelta! For timing purposes always use c.total_sec...
How to install APK from PC?
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102
adb install <path_to_apk>
http://developer.android.com/guide/developing/tools/adb.html#...
How to find indices of all occurrences of one string in another in JavaScript?
...tive) {
var searchStrLen = searchStr.length;
if (searchStrLen == 0) {
return [];
}
var startIndex = 0, index, indices = [];
if (!caseSensitive) {
str = str.toLowerCase();
searchStr = searchStr.toLowerCase();
}
while ((index = str.indexOf(...