安装Introduction to Linux Terminal Commands

cat [Concatenate] Manpage
# cat example
sudo cat /var/log/boot.log

concatenate files and print on the standard output
cd [Change Directory] Manpage
# cd examples
cd /var/log
ls
cd ~
ls

change the working directory
cp [Copy] Manpage
# cp example
cp ./Downloads ./Downloads-bkup -r
ls

copy files and directories
du [Disk Usage] Manpage
# du examples
du -h
du -sh

estimate file space usage
find Manpage
# find example
find *.log

search for files in a directory hierarchy
ls [List] Manpage
# ls example
ls /var/log

List directory contents
mkdir [Make Directory] Manpage
# mkdir example
mkdir ./directory_from_terminal
ls

make directories
mv [Move] Manpage
# mv example
mv ./directory_from_terminal ./directory_moved
ls

move (rename) files
pwd [Print Working Directory] Manpage
# pwd example
pwd

print name of current/working directory
rm [Remove] Manpage
# rm example
rm ./directory_moved -r
ls

remove files or directories
top Manpage
# top example
top

display Linux processes
touch Manpage
# touch example
touch ./empty_file_from_touch.txt
ls

change file timestamps
uname [Unix Name] Manpage
# uname example
uname -a

print system information
watch Manpage
# watch example
watch -n 3 --exec date

execute a program periodically, showing output fullscreen
wget Manpage
# wget example
wget https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png

non-interactive network downloader
whoami [Who Am I] Manpage
# whoami example
whoami

print effective userid