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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
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If the script is the same across all users, you can use a lockfile approach. If you acquire the lock, proceed else show a message and exit.
As an example:
[Terminal #1] $ lockfile -r 0 /tmp/the.lock
[Terminal #1] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] lockfile: ...
How do you manage your gists on GitHub? [closed]
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Web app
Full source, and downloads are available via github.
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Specify an SSH key for git push for a given domain
...s:
Host gitolite-as-alice
HostName git.company.com
User git
IdentityFile /home/whoever/.ssh/id_rsa.alice
IdentitiesOnly yes
Host gitolite-as-bob
HostName git.company.com
User git
IdentityFile /home/whoever/.ssh/id_dsa.bob
IdentitiesOnly yes
Then you just use gitolite-as-alice and...
Nginx Different Domains on Same IP
...st deleted it for clarity. To test it you might want to try serving a text file from each server first before actually serving php. That's why I left the 'root' directive in there.
share
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how to get an uri of an image resource in android
...itpic/" + R.drawable.icon); String mpath = path.toString(); I get No such file or directory error when i am doing this
– hemanth kumar
Sep 4 '12 at 12:45
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Microsoft Azure: How to create sub directory in a blob container
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how you filter or get all these files from "folder" ?
– afr0
Oct 16 '15 at 0:09
2
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Get the data received in a Flask request
...om a HTML post form, or JavaScript request that isn't JSON encoded
request.files: the files in the body, which Flask keeps separate from form. HTML forms must use enctype=multipart/form-data or files will not be uploaded.
request.values: combined args and form, preferring args if keys overlap
reques...
What does the “expand” option do in grunt-contrib-copy? The examples all use it but the docs say not
...cific for grunt-contrib-copy, information about it can be found in Grunt's file configuration API:
Set expand to true to enable the following options:
cwd All src matches are relative to (but don't include) this path.
src Pattern(s) to match, relative to the cwd.
dest Destination pat...
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
...s:
From /etc/mysql/my.cnf
In newer versions of mysql the location of the file is
/etc/mysql/mysql.conf.d/mysqld.cnf
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address = 127.0.0.1
(comment this li...
How does Go compile so quickly?
...dency
analysis easy and avoids much of the
overhead of C-style include files and
libraries.
While the phrase is not in the FAQ anymore, this topic is elaborated upon in the talk Go at Google, which compares the dependency analysyis approach of C/C++ and Go.
That is the main reason of fast c...