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How to find if directory exists in Python
...king for os.path.isdir, or os.path.exists if you don't care whether it's a file or a directory.
Example:
import os
print(os.path.isdir("/home/el"))
print(os.path.exists("/home/el/myfile.txt"))
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Sending a mail from a linux shell script
...you can just use the mail command.
For instance, to send the content of a file, you can do this:
$ cat /path/to/file | mail -s "your subject" your@email.com
man mail for more details.
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How to check if a process is running via a batch script
How can I check if an application is running from a batch (well cmd) file?
18 Answers
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Python Nose Import Error
...nose testing framework to recognize modules beneath my test script in the file structure. I've set up the simplest example that demonstrates the problem. I'll explain it below.
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ADB No Devices Found
...ting to install an Android app on my brand new Nexus 10 . I have a .apk file. I have downloaded the Android SDK, installed "Android SDK Tools", "Android SDK Platform-tools", and Google USB Driver. I have checked the setting on my Nexus 10 for "Unknown Sources".
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Is there a hosted version of Twitter Bootstrap? [closed]
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BootstrapCDN.com
Hosts the Javascript, CSS, and Image files.
Additionally hosts the Font Awesome CSS and a selection of Bootswatch themes.
Maintained by @jdorfman and @mervinej.
CDNJS.com
Hosts the JavaScript, CSS and Image files. Check the GitHub repo for more specifics.
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SVN change username
... link above: "when Subversion is accessing the repository directly off the file system, it uses your file system permissions to access the repository. (When you connect via SSH tunneling, SVN uses your FS permissions on the server, as determined by your SSH login.) So svn checkout --username may not...
What are carriage return, linefeed, and form feed?
.... I don't know the history of Macs using CR.) Many text editors can read files in any of these three formats and convert between them, but not all utilities can.
Form feed is a bit more interesting (even though less commonly used directly), and with the usual definition of page separator, it can ...
In a storyboard, how do I make a custom cell for use with multiple controllers?
...w. I've got no magical workarounds for you, other than suggesting that you file a bug.)
A storyboard is, in essence, not much more than a collection of .xib files. When you load up a table view controller that has some prototype cells out of a storyboard, here's what happens:
Each prototype cell ...
How do I run a program with commandline arguments using GDB within a Bash script?
... arg2 arg3
If you want it to run automatically, place some commands in a file (e.g. 'run') and give it as argument: -x /tmp/cmds. Optionally you can run with -batch mode.
gdb -batch -x /tmp/cmds --args executablename arg1 arg2 arg3
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