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proledatarian 2022-02-08 21:28:48 +00:00
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*This is a random collection of useful things I came across. *This is a random collection of useful things I came across.
It's mostly distro-agnostic but sometimes specific for [pacman-based distros](https://en.wikipedia.org/wiki/List_of_Linux_distributions#Pacman-based).* It's mostly distro-agnostic but sometimes specific for [pacman-based distros](https://en.wikipedia.org/wiki/List_of_Linux_distributions#Pacman-based).*
[[TOC]]
### 0. *Short example template.* ### 0. *Short example template.*
- Description: *What is this good for.* - Description: *What is this good for.*
@ -11,8 +13,8 @@ It's mostly distro-agnostic but sometimes specific for [pacman-based distros](ht
- `# this is the actual code lol` - `# this is the actual code lol`
- Aditionally: *Anything else that might be important like additional ressources.* - Aditionally: *Anything else that might be important like additional ressources.*
### 1. Automatically clear cache. ### 1. Automatic clear cache.
- Description: Move files older than a specific amount of time from your user's `~/.cache` directory to the trash. - Description: Automatically move files older than a specific amount of time from your user's `~/.cache` directory to the trash.
- Requires: The [rmtrash](https://github.com/PhrozenByte/rmtrash) package. - Requires: The [rmtrash](https://github.com/PhrozenByte/rmtrash) package.
- How-to: Add the following line to your crontab using the command "crontab -e" (or EDITOR=$editor crontab -e). - How-to: Add the following line to your crontab using the command "crontab -e" (or EDITOR=$editor crontab -e).
- `0 17 * * * /usr/bin/find ~/.cache/* -mtime +7 -exec /usr/bin/rmtrash -rf {} \;` - `0 17 * * * /usr/bin/find ~/.cache/* -mtime +7 -exec /usr/bin/rmtrash -rf {} \;`
@ -26,7 +28,7 @@ It's mostly distro-agnostic but sometimes specific for [pacman-based distros](ht
- Additionally: [ArchWiki: systemd](https://wiki.archlinux.org/title/Systemd/Journal#Journal_size_limit). - Additionally: [ArchWiki: systemd](https://wiki.archlinux.org/title/Systemd/Journal#Journal_size_limit).
- Additionally: This can also be achieved using `journalctl` and be [limited by time](https://wiki.archlinux.org/title/Systemd/Journal#Clean_journal_files_manually). - Additionally: This can also be achieved using `journalctl` and be [limited by time](https://wiki.archlinux.org/title/Systemd/Journal#Clean_journal_files_manually).
### 3. Syntax highlight for nano ### 3. Syntax highlight for nano.
- Description: Enable syntax highlighting for nano. - Description: Enable syntax highlighting for nano.
- Requires: The [nano](https://www.nano-editor.org/) editor. - Requires: The [nano](https://www.nano-editor.org/) editor.
- How-to: Edit `~/.config/nano/nanorc` or to `/etc/nanorc` and add the following: - How-to: Edit `~/.config/nano/nanorc` or to `/etc/nanorc` and add the following:
@ -41,7 +43,7 @@ It's mostly distro-agnostic but sometimes specific for [pacman-based distros](ht
- This prints the summarized size of $folder in human-readable format every second. - This prints the summarized size of $folder in human-readable format every second.
- Additionally: --- - Additionally: ---
### 5. Use sudo !!. ### 5. Repeat last command as su.
- Description: Repeat the last command using sudo. - Description: Repeat the last command using sudo.
- Requires: The [sudo](https://www.sudo.ws/) package. - Requires: The [sudo](https://www.sudo.ws/) package.
- How-to: Just type `sudo !!` and the last command will be repeated using `sudo`. - How-to: Just type `sudo !!` and the last command will be repeated using `sudo`.
@ -61,7 +63,7 @@ It's mostly distro-agnostic but sometimes specific for [pacman-based distros](ht
- `# systemctl enable paccache.time` - `# systemctl enable paccache.time`
- Additionally: Edit the paccache.service in /usr/lib/systemd/system/ and change the command to e.g. keep the latest installed version and no uninstalled version of all packages: `ExecStart=/usr/bin/paccache -rk1 && /usr/bin/paccache -ruk0` - Additionally: Edit the paccache.service in /usr/lib/systemd/system/ and change the command to e.g. keep the latest installed version and no uninstalled version of all packages: `ExecStart=/usr/bin/paccache -rk1 && /usr/bin/paccache -ruk0`
### 8. Passwordless SSH ### 8. Passwordless SSH.
- Description: Connect to a remote maschine using SSH without a password. - Description: Connect to a remote maschine using SSH without a password.
- Requires: A SSH implementation like [TinySSH](https://tinyssh.org/). - Requires: A SSH implementation like [TinySSH](https://tinyssh.org/).
- How-to: Generate a keypair and send the public key to the remote maschine's authorized keys. - How-to: Generate a keypair and send the public key to the remote maschine's authorized keys.
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- For example: `ssh-copy-id foo@192.168.178.123` - For example: `ssh-copy-id foo@192.168.178.123`
- Additionally: Here's a more detailed [tutorial](https://www.hostinger.com/tutorials/how-to-setup-passwordless-ssh/). - Additionally: Here's a more detailed [tutorial](https://www.hostinger.com/tutorials/how-to-setup-passwordless-ssh/).
### 9. Automatically clean orphaned packages. ### 9. Automatic clean orphaned packages.
- Description: Automatically remove orphaned packages. - Description: Automatically remove orphaned packages.
- Requires: A pacman-based distribution. - Requires: A pacman-based distribution.
- How-to: Add the following line to your crontab. - How-to: Add the following line to your crontab.