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How does a Linux/Unix Bash script know its own PID?
I have a script in Bash called Script.sh , and it needs to know its own PID (i.e. I need to get PID inside the Script.sh )
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MySQL connection not working: 2002 No such file or directory
... "The hostname localhost has a special meaning. It is bound to the use of Unix domain sockets. It is not possible to open a TCP/IP connection using the hostname localhost you must use 127.0.0.1 instead." - php.net/manual/en/mysqli.quickstart.connections.php. So basically something is not working wi...
Parsing JSON with Unix tools
I'm trying to parse JSON returned from a curl request, like so:
38 Answers
38
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Is there a portable way to get the current username in Python?
... getpass module
import getpass
getpass.getuser()
'kostya'
Availability: Unix, Windows
p.s. Per comment below "this function looks at the values of various environment variables to determine the user name. Therefore, this function should not be relied on for access control purposes (or possibly...
How do I put an already-running process under nohup?
...ll started." (from [quantprinciple.com/invest/index.php/docs/tipsandtricks/unix/…)
– Dr. Jan-Philip Gehrcke
Mar 17 '11 at 13:46
9
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What is a unix command for deleting the first N characters of a line?
For example, I might want to:
6 Answers
6
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Strengths of Shell Scripting compared to Python [closed]
...g reuses entire programs.
Shell is universally available (on anything like Unix) - Python is not necessarily installed.
'Tis true that you can do everything in Python that you can do in shell; 'tis also true that there are things that are easy in Python that are hard in shell (just as there are th...
Pipe output and capture exit status in Bash
...There is a good explanation with examples of PIPESTATUS AND Pipefail here: unix.stackexchange.com/a/73180/7453.
– slm
Apr 21 '13 at 14:01
18
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Exit codes in Python
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Not sure at all. In Unix/Linux, the standard is: exit 0 in the case everything was ok. Type a command, then echo $?: if you read 0, it returned without an error. The idea is to have standard tests. If the code xyz.py did not encounter any error,...
Install tkinter for Python
... .tar.gz files for tcl and tk. Then open up the readme files inside the ./unix directory. I ran
cd ~/tcl8.5.11/unix
./configure --prefix=/home/cnel711 --exec-prefix=/home/cnel711
make
make install
cd ~/tk8.5.11/unix
./configure --prefix=/home/cnel711 --exec-prefix=/home/cnel711 --with-tcl=/home/...