大约有 42,000 项符合查询结果（耗时：0.0660秒） [XML]
Ruby, Difference between exec, system and %x() or Backticks
...tem
The system method calls a system program. You have to provide the command as a string argument to this method. For example:
>> system("date")
Wed Sep 4 22:03:44 CEST 2013
=> true
The invoked program will use the current STDIN, STDOUT and STDERR objects of your Ruby program. In fact...
Difference between break and continue in PHP?
What is the difference between break and continue in PHP?
10 Answers
10
...
Start/Stop and Restart Jenkins service on Windows
...
Open Console/Command line --> Go to your Jenkins installation directory. Execute the following commands respectively:
to stop:
jenkins.exe stop
to start:
jenkins.exe start
to restart:
jenkins.exe restart
...
How to cat a file containing code?
... backticks will be evaluated, etc, like you discovered.
If you need to expand some, but not all, values, you need to individually escape the ones you want to prevent.
cat <<EOF >>brightup.sh
#!/bin/sh
# Created on $(date # : <<-- this will be evaluated before cat;)
echo "\$HOME w...
What is the difference between `git merge` and `git merge --no-ff`?
...fference between the two. How can I observe the difference (with a git command or some tool)?
6 Answers
...
Checking Bash exit status of several commands efficiently
Is there something similar to pipefail for multiple commands, like a 'try' statement but within bash. I would like to do something like this:
...
Record file copy operation with Git
...a file in git using git-mv the status shows that the file has been renamed and even if I alter some portions it still considers to be almost the same thing (which is good because it lets me follow the history of it).
...
Go to beginning of line without opening new line in VI
For ages now I've used SHIFT O and SHIFT $ to move to the beginning and end of a line in vi .
10 Answers
...
Padding between ActionBar's home icon and title
Does anybody know how to set padding between the ActionBar's home icon and the title?
21 Answers
...
Resizing SVG in html?
So, I have an SVG file in HTML, and one of the things I've heard about the format is that it doesn't get all pixelated when you zoom in on it.
...