Display directory space usage
df
display Disk Usages
cal
it show calender
cat /proc/meminfo
shows memory information.
w
Display, who is currently online
cat /proc/cpuinfo
shows cpu information
cat /proc/version
shows Information about Linux System
fingure username
shows information about a user
whoami
shows your login name
uname -a
used to display Kernal Information
date
show the current date & time
uptime
shows the system current uptime.
man command
shows manual a command
whereis app
shows possible location for an App
which app
shows which App will be Run by Default
free
Display Memory and swap usage.
man command
shows manual a command
kill
send signal to process
kill [PID]
This sends the TERM signal to the process.The TERM signal tells the process to please terminate.
kill -l
list all of the signals that are posssible to send with kill
lspci
shows PCI Devices
lsusb
shows USB Devices
lsblk
block devices in a tree-like format
curl ifconfig.me
to display external ip address
cat /var/log/boot.log
Bootlog information
reset
salvage a borked terminal
man ascii
quick access to the ascii table
getconf LONG_BIT
32 bits or 64 nits?
lsof -i
watch network service activity in real-time
lsof -P -i -n
show apps that use internet connection at the moment
nc -v -l 80 < file.ext
shareing file through http 80 port
vim -x
add password protection to a file your editing in vim
man hier
show file system hierarchy
fuser -k filename
kills a process that is locking a file
cat /etc/issue
display which distro is installed
date -d@1234567890
convert seconds to humn readble format
curl wttr.in/india
nice weather forecast on your shell
ls -d */
list only the directories
script
make a log of a terminal session
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