119 lines
2.9 KiB
Markdown
119 lines
2.9 KiB
Markdown
<h1 align="center">BashConfig</h1>
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<p align="center">
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<a href="https://github.com/TheK4n">
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<img src="https://img.shields.io/github/followers/TheK4n?label=Follow&style=social">
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</a>
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<a href="https://github.com/TheK4n/BashConfig">
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<img src="https://img.shields.io/github/stars/TheK4n/BashConfig?style=social">
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</a>
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</p>
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## Content
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* [Project description](#chapter-0)
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* [SSH](#chapter-1)
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* [Tips](#chapter-2)
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<a id="chapter-0"></a>
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## Project description
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Bash config files
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[]()
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<a id="chapter-1"></a>
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## SSH
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Create ssh key on local device
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1. `ssh-keygen`
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2. Save to `~/.ssh`
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3. Enter passphrase
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4. Copy content of `~/.ssh/id_rsa.pub` key to remote `~/.ssh/authorized_keys`
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\
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Add aliases for ssh to `~/.ssh/config`:
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```
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Host host_name
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HostName ip
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Port 22
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User root
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IdentityFile ~/.ssh/id_rsa
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```
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\
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Using aliases:
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```bash
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ssh host_name
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sftp host_name
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```
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### White and black lists
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add white list to ```/etc/hosts.allow```:
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```text
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sshd: 10.83.33.77/32, 10.63.152.9/32, 10.12.100.11/28, 10.82.192.0/28
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```
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add black list to ```/etc/hosts.deny```:
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```text
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sshd: ALL
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```
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<a id="chapter-2"></a>
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## Tips
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### Bash
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| Command | Description |
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|:------------------: | :------------------ |
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|```Alt + . ``` ```Esc + .``` | Last object |
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|```Ctrl + r``` | Search by bash_history |
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|```Ctrl + l``` | Clear, like command clear |
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```bash
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rm -rf BashConfig; git clone https://github.com/thek4n/BashConfig && cd BashConfig && cp .bashrc .bash_aliases .bash_functions .profile .vimrc .zshrc ~; cd ..; rm -rf BashConfig; . ~/.bashrc
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```
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```$RANDOM``` - Return random 0-32767\
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```/command``` - Without using alias\
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```df -h /``` - Size
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### Vim
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| Command | Description |
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|:------------------ | :------------------------------------ |
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|```Ctrl + [``` | Analog Esc |
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|```d -> Ctrl + End``` | Delete from cursor to end of file |
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| ```u``` | Undo |
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| ```Ctrl + r``` | Redo |
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| ```22G``` | Go to line 22 |
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<p></p>
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### Autostart
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* create ```/etc/systemd/system/<service>.service```
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```bash
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sudo vim /etc/systemd/system/<service>.service
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sudo systemctl daemon-reload
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sudo systemctl start <service>.service
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sudo systemctl status <service>.service
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sudo systemctl enable <service>.service
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```
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### Cron
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```crontab -e```
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```0 0 1 1 * command.sh``` - Every year in 1 January 00:00:00 \
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```*/1 * * * * command.sh``` - Every minute\
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```0 */3 * * 2,5 command.sh``` - One time per 3 hours in Tue and Fri\
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```0 0,12 1 */2 * command.sh``` - At minute 0 past hour 0 and 12 on day-of-month 1 in every 2nd month
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<h1 align="center"><a href="#top">▲</a></h1>
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