linux - Bash语法中的`-z`是什么意思？

尝试模仿spf13-vim.sh这个脚本写一个脚本时；看到其中有如下代码片段： {代码...} 看到其中[ -z "$APP_PATH" ] && APP_PATH=&...

From [Linuxdiscussion group] 2017-04-17 15:46:53 0  2  1190

linux - How to exit nano command from command line

I accidentally entered the nano command, but I don’t know how to exit. I’m waiting online for help. ˞͛ʕ̡̢̡๑꒪͒ꇴ...

From [Linuxdiscussion group] 2017-05-27 17:44:41 0  4  1187

Linux system uses telnet to send customized messages

When using telnet to connect to the remote host on Linux, the connection is successful, but sending a custom m...

From [Linuxdiscussion group] 2017-05-27 17:44:50 0  1  1182

画图 - 在ubuntu 系统里 用什么软件可以在图片上 画箭头，方框，圆？

自己截图，写了一个教程， 要在图片上画些东西。 有什么实用的软件或办法吗？ 搜索了一下发现都是win的方法。 更新下， 这几天换debian系统了， 没设置好， 今天搞好了。 大家误会我的意思了，比如这是火狐插件截...

From [Linuxdiscussion group] 2017-04-22 08:59:52 0  6  1182

linux - 明明已经安装了openssl却提示找不到openssl

碰到过N次这种问题。每次都是到openssl.org下载source包。然后编译的时候指定 {代码...} 然后才能顺利通过。不仅仅是openssl，比如还有zlib、lua。今天编译tengine又碰到这问题。无奈。又...

From [Linuxdiscussion group] 2017-04-17 11:12:57 0  1  1176

nginx - How to access the intranet through the router's port mapping function

There are several servers under the fixed IP of the public network (220.174.XX.XX). These servers are connecte...

From [Linuxdiscussion group] 2017-05-16 17:08:59 0  2  1172

docker-images - MacOS installed docker through boot2docker, but started nginx and could not find the nginx configuration file?

I started docker through: boot2docker start, ran a container called web, and installed nginx. Docker run --nam...

From [Linuxdiscussion group] 2017-06-24 09:44:30 0  1  1171

linux - LESS 乱码

linux less 命令乱码.尝试: 1. export LESSCHARSET=utf-8 (推荐) 2. export LESS=-Mrf均无效乱码显示为如下符号: {代码...}

From [Linuxdiscussion group] 2017-04-17 11:14:04 0  2  1170

document

No file downloaded

From [Linuxdiscussion group] 2020-07-12 10:01:20 0  1  1169

linux - rsync error: error in socket IO (code 10) at clientserver.c(124) [sender=3.0.6]

rsync: failed to connect to ip: Connection timed out (110) rsync error: error in socket IO (code 10) at client...

From [Linuxdiscussion group] 2017-04-17 11:25:20 0  0  1169

netstat -anpt和lsof -i:5902都不显示pid如何办？

有个端口5902，通过netstat -anpt可以看到，但是pid显示的是横线，而通过lsof -i:5902根本就无信息，我想杀死5902所在的进程

From [Linuxdiscussion group] 2016-11-08 13:37:06 0  1  1169

centos7 - centos 7.2（1511） 和7.3（1611）哪个更稳定？

打算新的建站用centos，稳定第一，centos 7.2（1511） 和7.3（1611）哪个更稳定?

From [Linuxdiscussion group] 2017-04-26 09:01:53 0  3  1168

python - Openssl key signature results are inconsistent under linux and windows

Q1: The value obtained by using {code...} under Linux is different from the value obtained by the same operati...

From [Linuxdiscussion group] 2017-06-20 10:06:23 0  1  1167

linux - yum命令出现Exiting on user cancel，什么原因？

在ssh命令行中查看软件有什么版本，出现Exiting on user cancel,什么原因，执行中没有其他操作。比如下面执行yum list nginx,过程和结果如下： {代码...} 下面是我的yum源：

From [Linuxdiscussion group] 2017-04-17 14:35:19 0  1  1167

Does frequent server changes have an impact on website rankings?

The server is the foundation of the website, and the smooth operation of the website cannot be separated from ...

From [Linuxdiscussion group] 2021-10-26 12:08:59 0  2  1166