大约有 13,000 项符合查询结果（耗时：0.0255秒） [XML]
Linux bash: Multiple variable assignment
...t's a poor motivation: What if ';' is a valid argument? When I write ls ; cd it still calls ls and cd despite the spaces. If I want to list directories called ; and cd I can just type ls ';' cd.
– PieterNuyts
Jul 18 '19 at 12:47
...
How to create a temporary directory?
... aborts somewhere.
#!/bin/bash
# the directory of the script
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
# the temp directory used, within $DIR
# omit the -p parameter to create a temporal directory in the default location
WORK_DIR=`mktemp -d -p "$DIR"`
# check if tmp dir...
Attach to a processes output for viewing
... under the /proc path. So if you have a program running, whose ID is 1199, cd into it:
$ cd /proc/1199
Then look for the fd directory underneath
$ cd fd
This fd directory hold the file-descriptors objects that your program is using (0: stdin, 1: stdout, 2: stderr) and just tail -f the one you ...
Phonegap Cordova installation Windows
...h. In my case it is C:\Users\binaryuser\AppData\Roaming\npm\cordova so use cd C:\Users\binaryuser\AppData\Roaming\npm\ and type cordova. There it is, it finally works.
Since the -g key value isn't working you have set the Environment Variables path:
Press Win + Pause|Break or right click on Comput...
Shell - How to find directory of some command?
...g.:
tcsh% where python
/usr/local/bin/python
/usr/bin/python
tcsh% where cd
cd is a shell built-in
/usr/bin/cd
share
|
improve this answer
|
follow
|
...
How to URL encode a string in Ruby
...
str = "\x12\x34\x56\x78\x9a\xbc\xde\xf1\x23\x45\x67\x89\xab\xcd\xef\x12\x34\x56\x78\x9a".force_encoding('ASCII-8BIT')
puts CGI.escape str
=> "%124Vx%9A%BC%DE%F1%23Eg%89%AB%CD%EF%124Vx%9A"
share
|...
Compile time string hashing
...c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xab...
Why 0 is true but false is 1 in the shell?
...n of chained shell commands.
Here is an example mkdir deleteme && cd $_ && pwd. Because the shell interprets 0 as true this command conveniently works as expected. If the shell were to interpret 0 as false then you'd have to invert the interpreted exit status for each operation.
In...
程序员必知 —— 编程语言创始人 - 创意 - 清泛网 - 专注C/C++及内核技术
...C语言和其他编程语言、Multics和Unix等操作系统的发展做出了巨大贡献。在技术讨论中，他常被称为dmr，这是他在贝尔实验室的用户名称 （username）。
Java创始人
詹姆斯·高斯林（英语：James Gosling，1955年5月19日－），出生于加...
坑!网友贪便宜买低价大虾,撕开包装那一刻他哭了 - 轻松一刻 - 清泛网 - 专...
坑!网友贪便宜买低价大虾,撕开包装那一刻他哭了最近，有日本网友在Twitter上分享了一则感人故事…他表示自己在超市看到了一盒9只装的原产大虾，看上去还蛮大的...主要是价格超低！他觉得...最近，有日本网友在Twitter上分享...