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Running a cron every 30 seconds
...
You can't. Cron has a 60 sec granularity.
* * * * * cd /srv/last_song/releases/20120308133159 && script/rails runner -e production '\''Song.insert_latest'\''
* * * * * sleep 30 && cd /srv/last_song/releases/20120308133159 && script/rails runner -e produ...
How to get Ruby / Homebrew / RVM to work on Yosemite?
...es to brew yet, here is what I recommend. Otherwise read further below.
cd /System/Library/Frameworks/Ruby.framework/Versions/
sudo ln -s Current 1.8
brew update
sudo unlink 1.8
Already made changes to brew files and stuck in a git mess?
I tried to edit /usr/local/Library/brew.rb but the loca...
GIT: Checkout to a specific folder
...ould use the show subcommand: git show 82e54378856215ef96c5db1ff1160a741b5dcd70:MyProj/proguard/mapping.txt > myproj_mapping.txt
– ef2011
Oct 14 '12 at 23:49
add a comment
...
Python os.path.join on Windows
...p + "usr" instead of simply "/usr"? Also note that in Win shells you can't cd c: but you can cd c:\ , suggesting that the root name is actually c:\ .
– Michael Ekoka
Mar 23 at 2:05
...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
....6161 (SP1)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\67D6ECF5CD5FBA732B8B22BAC8DE1B4D
Configuration: x64
Version: 9.0.30729.6161 (Actual $Version data in registry: 0x9007809 [DWORD])
Direct Download URL: https://download.microsoft.com/download/2/d/6/2d61c766-107b-409d-8fba-c39e61ca0...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
...ory
-B the new PostgreSQL executable directory
Move new data into place:
cd /usr/local/var
mv postgres postgres9.6
mv postgres10.1 postgres
Restart Postgres:
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Check /usr/local/var/postgres/server.log for details and to make sure...
Is there a performance difference between i++ and ++i in C?
...assembler files are the same.
$ md5 i++.s ++i.s
MD5 (i++.s) = 90f620dda862cd0205cd5db1f2c8c06e
MD5 (++i.s) = 90f620dda862cd0205cd5db1f2c8c06e
$ md5 *.o
MD5 (++i.o) = dd3ef1408d3a9e4287facccec53f7d22
MD5 (i++.o) = dd3ef1408d3a9e4287facccec53f7d22
...
Forward declaration of nested types/classes in C++
...take out class D separately, and enter a synonym for it in class C:
class CD {
};
class C {
public:
using D = CD;
};
class CD;
How to code a BAT file to always run as admin mode?
...SYSTEM32 instead of bat file location!
To workaround it, you should use
cd "%~dp0"
or better
pushd "%~dp0"
to ensure cur dir is at the same path where the bat file is.
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git update-index --assume-unchanged returns “fatal unable to mark file”
...u SOOOO much! This worked! I think I was using all lower case before, or cd to the folder and then tried to use this command.
– Karen
Dec 13 '12 at 22:44
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