大约有 12,000 项符合查询结果（耗时：0.0168秒） [XML]
Allowed characters in Linux environment variable names
...ecial characters as a part of a variable name. However when one program or script (e.g. java or perl) initializes a variable with special characters in its name and calls another executable (a child process) the latter executable can access that variable without problems.
– o...
Doing something before program exit
...ion or something that will be executed before your program quits? I have a script that will be constantly running in the background, and I need it to save some data to a file before it exits. Is there a standard way of doing this?
...
How to turn off INFO logging in Spark?
...he AWS EC2 guide and I can launch the program fine using the bin/pyspark script to get to the spark prompt and can also do the Quick Start quide successfully.
...
ctypes - Beginner
...ssuming the path to the shared library in the same directory as the Python script,
import numpy.ctypeslib as ctl
import ctypes
libname = 'testlib.so'
libdir = './'
lib=ctl.load_library(libname, libdir)
py_add_one = lib.add_one
py_add_one.argtypes = [ctypes.c_int]
value = 5
results = py_add_one(val...
What is the minimum I have to do to create an RPM file?
...ompany.com/
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
%description
%{summary}
%prep
%setup -q
%build
# Empty section.
%install
rm -rf %{buildroot}
mkdir -p %{buildroot}
# in builddir
cp -a * %{buildroot}
%clean
rm -rf %{buildroot}
%files
%defattr(-,root,root,-)
%config(nor...
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
...ood rule of thumb I was taught is to use the "unicode sandwich" idea. Your script accepts bytes from the outside world, but all processing should be done in unicode. Only when you are ready to output your data should it be mushed back into bytes!
– Andbdrew
Mar...
How do I get bash completion to work with aliases?
...
See the updated version of this script at superuser.com/a/437508/102281 (for example, I added support for COMP_LINE and COMP_POINT which are required for some git completions).
– John Mellor
Nov 4 '14 at 17:24
...
How do I rename the extension for a bunch of files?
...lenames with spaces in them. You should ALWAYS do proper quotation in bash scripts. mv "$file" "$(basename "$file" .html)".txt would be much better. But still, mv "$files" "${files%.html}.txt" is much better.
– Balázs Pozsár
Aug 4 '09 at 8:39
...
List files ONLY in the current directory
...
Just use os.listdir and os.path.isfile instead of os.walk.
Example:
import os
files = [f for f in os.listdir('.') if os.path.isfile(f)]
for f in files:
# do something
But be careful while applying this to other directory, li...
Combining multiple git repositories
... The result is a messed up history! My solution was to paste the code in a script file a write a real <TAB> character in it. From the Terminal, a tab can be entered pressing ctrl+v and then writing a <TAB>. I haven't tried Craig's solution
– Gil Vegliach
...