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How do I find files that do not contain a given string pattern?
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The UNIX I'm on didn't have versions of find or grep with these options, so I had to go with the "ack" command suggested in other comments.
– KC Baltz
Sep 8 '11 at 21:32
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Get the date (a day before current time) in Bash
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date --date="1 day ago"
More info: https://www.cyberciti.biz/tips/linux-unix-get-yesterdays-tomorrows-date.html
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How to retrieve the current version of a MySQL database management system (DBMS)?
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I found a easy way to get that.
Example: Unix command(this way you don't need 2 commands.),
$ mysql -u root -p -e 'SHOW VARIABLES LIKE "%version%";'
Sample outputs:
+-------------------------+-------------------------+
| Variable_name | Value ...
Android Get Current timestamp?
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1320917972 is Unix timestamp using number of seconds since 00:00:00 UTC on January 1, 1970. You can use TimeUnit class for unit conversion - from System.currentTimeMillis() to seconds.
String timeStamp = String.valueOf(TimeUnit.MILLISECON...
Exporting a function in shell
...ctly.
Some details on FPATH and autoload:
http://docstore.mik.ua/orelly/unix3/upt/ch29_13.htm
http://users.speakeasy.net/~arkay/216-7.4KshFunctions.html
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How do I delete all untracked files from my working directory in Mercurial?
...install this extension, add this to your mercurial settings file (.hgrc on Unix, Mercurial.ini on Windows)
[extensions]
purge =
To enable this extension temporarily you can use
hg purge --config extensions.purge=
sha...
SVN Error - Not a working copy
...just got "not a working copy", and for me the reason was the Automouter on Unix.
Just a fresh "cd /path/to/work/directory" did the trick.
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The command rbenv install is missing
...less you know what you're doing: stackoverflow.com/questions/33048024/… unix.stackexchange.com/questions/91095/…
– Andreas Storvik Strauman
Feb 1 '17 at 16:51
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解决Scrapy警告:You do not have a working installation of the service_i...
...些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制更新：
pip install service_identity --force --upgrade
至此，问题解决。
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