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How to detect if my shell script is running through a pipe?
...ped to cat.
The -t flag is described in man pages as
-t fd True if file descriptor fd is open and refers to a terminal.
... where fd can be one of the usual file descriptor assignments:
0: stdin
1: stdout
2: stderr
...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...
The /sys filesystem should contain plenty information for your quest. My system (2.6.32-40-generic #87-Ubuntu) suggests:
/sys/class/tty
Which gives you descriptions of all TTY devices known to the system. A trimmed down example:
#...
Apache: client denied by server configuration
...espectively. Strange... I guess I need to compare each server's httpd.conf files to see if there is a config difference there...
– Darragh Enright
Jul 23 '14 at 1:22
...
Migration: Cannot add foreign key constraint
...Migrations get executed in the order they were created as indicated by the file name generated after running migrate:make. E.g. 2014_05_10_165709_create_student_table.php.
The solution was to rename the file with the foreign key to an earlier time than the file with the primary key as recommended h...
How to add NERDTree to your .vimrc
... the answer you're looking for is to add the line below into your ~/.vimrc file. It tells Vim that you want to setup a command to run when Vim starts, but since it depends on various plugins to be loaded, you don't want to run it until all initialization is finished:
autocmd VimEnter * NERDTree
...
e.printStackTrace equivalent in python
... error 1294 Something awful happened!
Traceback (most recent call last):
File "b.py", line 22, in f
g()
File "b.py", line 14, in g
1/0
ZeroDivisionError: integer division or modulo by zero
(From http://blog.tplus1.com/index.php/2007/09/28/the-python-logging-module-is-much-better-than-p...
Using logging in multiple modules
..."
if __name__ == '__main__':
import logging.config
logging.config.fileConfig('/path/to/logging.conf')
main()
or
def main():
import logging.config
logging.config.fileConfig('/path/to/logging.conf')
# your program code
if __name__ == '__main__':
main()
See here for ...
src/lxml/etree_defs.h:9:31: fatal error: libxml/xmlversion.h: No such file or directory
...got the error. Logged off and back on, and still got the error. The make file is looking in /usr/include for libxml, but that is nested inside a libxml2 directory. Linking to libxml from /usr/include did the trick sudo ln -s libxml2/libxml libxml.
– foszter
...
Dot character '.' in MVC Web API 2 for request such as api/people/STAFF.45287
...
Following setting in your web.config file should fix your issue:
<configuration>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
...
Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)
...
If you use SET OFFLINE you have to manually delete the db files.
– mattalxndr
Oct 13 '13 at 18:40
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