split function into a file

Author: YuJianjian

iterm2-ssh-plugin/ReadMe.md

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+# Iterm2-ssh
+for mac iterm2
+auto re-color & re-name tab  when ssh to a remote server
+aviod to mistake operations on some important servers
+
+## Steps
+#### 1. Config your host
+update ~/.ssh/config for hostname alias and priority identified
+
+```bash
+Host d01
+  HostName 192.168.100.11
+  Port 22
+  User root
+  IdentityFile ~/data/keys/mykey
+
+Host dev-n01
+  HostName 172.16.30.101
+  Port 22
+  User root
+  IdentityFile ~/data/keys/mykey
+```
+
+#### 2. Enable the plugin
+
+##### Without `oh-my-zsh`:
+put `iterm2-ssh.plugin.zsh` in any place like `~/.plugins`,
+append fllowing line in your `~/.zshrc`:
+```sh
+source ~/.plugins/iterm2-ssh.plugin.zsh
+```
+
+##### With `oh-my-zsh`:
+put the plugin file under `~/.oh-my-zsh/custome/plugins/iterm2-ssh/`,
+and append __iterm2-ssh__ in the constant `plugins` defined in `~/.zshrc`:
+```sh
+...
+plugins=(git iterm2-ssh)
+...
+```
+
+#### 4. Restart __zsh__
+
+```sh
+exec $SHELL
+```