[File systems](filesystems.md)

[Fedora / CentOS](fedora.md)

[SELinux](selinux.md)

# Common

## find
```
find /var -maxdepth 2 -type d -printf "%TY-%Tm-%Td %TH:%TM:%TS %Tz %p\n"
```

## bash
```
# cat > /etc/profile.d/cmp.sh

export EDITOR=mcedit
export HISTFILESIZE=10485760
export HISTSIZE=500000
export HISTCONTROL=ignoreboth:erasedups
export HISTIGNORE="history:reboot:poweroff:cd:ls:pwd:mc:ps:m:e:l"
export SSH_ASKPASS=

alias ffi='ffmpeg -hide_banner -i'

alias m='cd /mnt'
alias e='cd /etc'
alias l='cd /var/log'

tabs -4

```

## reboot
```bash
echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger
```

## Motherboard name
```bash
cat /sys/devices/virtual/dmi/id/board_name
```

## grab video from screen
```bash
ffmpeg -s 1920x1080 -framerate 10 -f x11grab -i :0 -qscale 6 out.mkv
```

```bash
ps --ppid 2 -p 2 --deselect
```