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Remove file extension from a file name string
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Watch out for files with no extension, like foo/bar.cat/cheese!
– Cameron
Jan 24 '14 at 14:54
S...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...行。
12. 一个验证passwd文件有效性的例子
$ cat /etc/passwd | awk -F: '\ NF != 7{\ printf("line %d,does not have 7 fields:%s\n",NR,$0)}\ $1 !~ /[A-Za-z0-9]/{printf("line %d,non alpha and numeric user id:%d: %s\n,NR,$0)}\ $2 == "*" {printf("line %d, no password: %s\n",NR...
How to read a (static) file from inside a Python package?
...ng code (porting also explained here).
Let's assume your templates are located in a folder nested inside your module's package:
<your-package>
+--<module-asking-the-file>
+--templates/
+--temp_file <-- We want this file.
Note 1: For sure...
How do I get both STDOUT and STDERR to go to the terminal and a log file?
... I don't know of an equivalent for sh/bash/ksh.
Also, since you have indicated that these are your own sh scripts that you can modify, you can do the redirection internally by surrounding the whole script with braces or brackets, like
#!/bin/sh
{
... whatever you had in your script before...
How to fix apt-get: command not found on AWS EC2? [closed]
...pt-get doesn't work? type yum instead.
– Walrus the Cat
Nov 30 '16 at 22:29
Hey @Pat841 , mark this as the answer
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How can I get the current date and time in the terminal and set a custom command in the terminal for
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Another way: root@linux 17:32:02 /linux >cat /proc/driver/rtc rtc_time : 23:38:24 rtc_date : 2014-07-10
– Lunar Mushrooms
Jul 11 '14 at 6:40
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如何诊断CDN故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...载太慢，这里给一个利用xargs并发下载的例子：
shell> cat ip.txt | xargs -n 1 -P 0 -I {} \
wget -q -e http_proxy={} -O {} "http://url/to/file" &
最后看看文件散列是否一致就大功告成了：
shell> md5sum *
一旦知道了哪个节点有问题，可以利用...
Pip install Matplotlib error with virtualenv
...dev
sudo apt-get install libfreetype6-dev
Ubuntu https://apps.ubuntu.com/cat/applications/libpng12-0/
or using following command
sudo apt-get install libpng12-0
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improve this answer
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What is the Python 3 equivalent of “python -m SimpleHTTPServer”
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Using 2to3 utility.
$ cat try.py
import SimpleHTTPServer
$ 2to3 try.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skippi...
Multiplication on command line terminal
... assigning via k. I certainly remember the default precision being 0 (truncation to integer). Am I mis-remembering, or is it simply that newer implementations have changed behavior?
– William Pursell
Jun 15 '12 at 1:32
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