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System information

CPU usage in percentage

HZ=`[awk](/man/awk) '/\#define HZ/ { print $3}' /usr/include/asm-generic/param.h`; NUMCPUS=`[grep](/man/grep) ^proc /proc/cpuinfo | [wc](/man/wc) -l`; FIRST=`[cat](/man/cat) /proc/stat | [awk](/man/awk) '/^cpu / { print $5}'`; [sleep](/man/sleep) 1; SECOND=`[cat](/man/cat) /proc/stat | [awk](/man/awk) '/^cpu / { print $5}'`; USED=`[echo](/man/echo) 4 k 100 $SECOND $FIRST - $NUMCPUS $HZ \* / 100 \* - p | [dc](/man/dc)`; [echo](/man/echo) ${USED}` NUMCPUS=`[grep](/man/grep) ^proc /proc/cpuinfo | [wc](/man/wc) -l`; FIRST=`[cat](/man/cat) /proc/stat | [awk](/man/awk) '/^cpu / { print $5}'`; [sleep](/man/sleep) 1; SECOND=`[cat](/man/cat) /proc/stat | [awk](/man/awk) '/^cpu / { print $5}'`; USED=`[echo](/man/echo) 2 k 100 $SECOND $FIRST - $NUMCPUS / - p | [dc](/man/dc)`; [echo](/man/echo) ${USED}%

Laptop battery in percentage

max=$([grep](/man/grep) 'last full capacity:' /proc/acpi/battery/BAT1/info | [awk](/man/awk) '{ print $4}'); current=$([grep](/man/grep) 'remaining capacity:' /proc/acpi/battery/BAT1/state | [awk](/man/awk) '{ print $3}'); percent=$([expr](/man/expr) $current'00' / $max); [echo](/man/echo) -e $percent [upower](/man/upower) -i $([upower](/man/upower) -e | [grep](/man/grep) BAT) | [grep](/man/grep) --color=never -E percentage | [xargs](/man/xargs) | [cut](/man/cut) -d' ' -f2 | [sed](/man/sed) 's/%//' [cat](/man/cat) /sys/class/power_supply/BAT1/uevent | [awk](/man/awk) '/POWER_SUPPLY_CAPACITY/ { print $1}' | [sed](/man/sed) 's/POWER_SUPPLY_CAPACITY=//'

Bluetooth MAC address

[hciconfig](/man/hciconfig) -a | [awk](/man/awk) '/BD Address:/ { print $3}'

Bluetooth name

[hciconfig](/man/hciconfig) -a | [awk](/man/awk) '/Name:/ { print $2}'

Network interfaces

[ifconfig](/man/ifconfig) -a [ip](/man/ip) a

Memory information

[cat](/man/cat) /proc/meminfo

Info about the Linux system

[cat](/man/cat) /proc/version [uname](/man/uname) -a [neofetch](/man/neofetch) [hostnamectl](/man/hostnamectl) [lsb_release](/man/lsb_release) -a

PCI devices

[lspci](/man/lspci)

USB devices

[lsusb](/man/lsusb)

Block devices (except RAM disks) in a tree-like format

[lsblk](/man/lsblk)

Uptime of machine

[uptime](/man/uptime)

Disk usage info

[df](/man/df) -k [df](/man/df) -h [duf](/man/duf)

Bootlog info

[cat](/man/cat) /var/log/boot.log

Show a small monthly calendar

[cal](/man/cal)

CPU information

[lscpu](/man/lscpu) [cat](/man/cat) /proc/cpuinfo

Show running processes

[ps](/man/ps) aux [top](/man/top) [htop](/man/htop) [btop](/man/btop) [atop](/man/atop)

Memory usage

[free](/man/free) -h [vmstat](/man/vmstat)

Kernel messages

[dmesg](/man/dmesg)

Loaded kernel modules

[lsmod](/man/lsmod)

Show disk partitions

[fdisk](/man/fdisk) -l [parted](/man/parted) -l