cheat-sheet articles are about code snippets that I need every once in a while, and which I constantly forget about.
If you have a shell script, and want to redirect all input it receives via
STDIN to another script or program, use <&0:
#!/bin/zsh
/path/to/another/script.pl --script-args <&0
cheat-sheet articles are about code snippets that I need every once in a while, and which I constantly forget about.
logging.Logger.manager.loggerDict holds a dictionary of all loggers that
have been requested.
>>> import logging
>>> logging.Logger.manager.loggerDict
{}
>>> logging.getLogger('foo')
<logging.Logger object at 0x7f11d4d104d0>
>>> logging.getLogger('bar')
<logging.Logger object at 0x7f11d4cb7ad0>
>>> logging.Logger.manager.loggerDict
{'foo': <logging.Logger object at 0x7f11d4d104d0>,
'bar': <logging.Logger object at 0x7f11d4cb7ad0>}
Found at http://code.activestate.com/lists/python-list/621740/.
cheat-sheet articles are about code snippets that I need every once in a while, and which I constantly forget about.
| Shortcut | Description |
|---|---|
!! |
the entire previous command |
!!^ |
the first argument from the previous command |
!!* |
all arguments from the previous command |
!!:n |
the n-th word from the previous command |
!!$ |
the last word from the previous command |
!# |
the entire current command line (typed in so far) |
!#^ |
the first argument from the current command line |
!#* |
all arguments from the current command line |
!#:n |
the n-th word from the current command line |
!#$ |
the last word from the current command line |
For more information, read Andrew Grangaard’s Zsh history expansion article.