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Intersection of two lists in Bash
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ghostdog74ghostdog74
269k4848 gold badges233233 silver badges323323 bronze badges
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Is there a Unix utility to prepend timestamps to stdin?
...row this out there: there are a pair of utilities in daemontools called tai64n and tai64nlocal that are made for prepending timestamps to log messages.
Example:
cat file | tai64n | tai64nlocal
How do I put a border around an Android textview?
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84
What if I just want the top border?
– happyhardik
Aug 1 '12 at 17:55
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Does name length impact performance in Redis?
...gain and changing the key to "set-allBooksBelongToUser:1234567890":
60240.96 requests per second
60606.06 requests per second
58479.53 requests per second
Changing the key yet again to "ipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreipsumloreips...
Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
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96
I don't like EnsureSuccessStatusCode as it doesn't return anything meaninful.
That is why I've ...
How do I show an open file in eclipse Package Explorer?
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Bo Persson
84k1919 gold badges134134 silver badges196196 bronze badges
answered Jan 29 '17 at 21:16
Kai ShenKai ...
HMAC-SHA1 in bash
...] 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 string and that cha...
Meaning of epsilon argument of assertEquals for double values
...or (say for degrees) you could set epsilon to 1 meaning that, for example, 64.2° is the same as 64.8° (since abs(64.8-64.2) < 1)
– Pieter De Bie
Sep 25 '15 at 8:14
3
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Android Studio - How to increase Allocated Heap Size
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Thx, it's very usefull. FYI, if you use the 64bits version, the file to edit is named studio64.exe.vmoptions.
– Eselfar
Jul 11 '17 at 14:47
add ...
Impossible to Install PG gem on my mac with Mavericks
.../pg_config
Once done, install the pg gem with
env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/usr/local/Cellar/postgresql/9.3.3/bin/pg_config
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