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Command Description Output
echo <string> Print string to screen $ echo hello
man <command> Display manual page for command $ man echo
⌃C Get out of trouble $ tail^C
⌃A Move to beginning of line
⌃E Move to end of line
⌃U Delete to beginning of line
Option-click Move cursor to location clicked
Up & down Scroll through previous commands
clear or ⌃L Clear screen $ clear
exit or ⌃D Exit terminal $ exit
> Redirect output to filename $ echo foo > foo.txt
>> Append output to filename $ echo bar >> foo.txt
cat <file> Print contents of file to screen $ cat hello.txt
diff <f1> <f2> Diff files 1 & 2 $ diff foo.txt bar.txt
ls List directory or file $ ls hello.txt
ls -l List long form $ ls -l hello.txt
ls -rtl Long by reverse modification time $ ls -rtl
ls -a List all (including hidden) $ ls -a
touch <file> Create an empty file $ touch foo
mv <old> <new> Rename (move) from old to new $ mv foo bar
cp <old> <new> Copy old to new $ cp foo bar
rm <file> Remove (delete) file $ rm foo
rm -f <file> Force-remove file $ rm -f bar
curl Interact with URLs $ curl -O example.com
which Locate a program on the path $ which curl
head <file> Display first part of file $ head foo
tail <file> Display last part of file $ tail bar
wc <file> Count lines, words, bytes $ wc foo
cmd1 | cmd2 Pipe cmd1 to cmd2 $ head foo | wc
ping <url> Ping a server URL $ ping google.com
less <file> View file contents interactively $ less foo
grep <string> <file> Find string in file $ grep foo bar.txt
grep -i <string> <file> Find case-insensitively $ grep -i foo bar.txt
ps Show processes $ ps aux
top Show processes (sorted) $ top
kill -<level> <pid> Kill a process $ kill -15 24601
pkill -<level> -f <name> Kill matching processes $ pkill -15 -f spring
echo <string> Print string to screen $ echo hello
man <command> Display manual page for command $ man echo
⌃C Get out of trouble $ tail^C
⌃A Move to beginning of line
⌃E Move to end of line
⌃U Delete to beginning of line
Option-click Move cursor to location clicked
Up & down Scroll through previous commands
clear or ⌃L Clear screen $ clear
exit or ⌃D Exit terminal $ exit
> Redirect output to filename $ echo foo > foo.txt
>> Append output to filename $ echo bar >> foo.txt
cat <file> Print contents of file to screen $ cat hello.txt
diff <f1> <f2> Diff files 1 & 2 $ diff foo.txt bar.txt
ls List directory or file $ ls hello.txt
ls -l List long form $ ls -l hello.txt
ls -rtl Long by reverse modification time $ ls -rtl
ls -a List all (including hidden) $ ls -a
touch <file> Create an empty file $ touch foo
mv <old> <new> Rename (move) from old to new $ mv foo bar
cp <old> <new> Copy old to new $ cp foo bar
rm <file> Remove (delete) file $ rm foo
rm -f <file> Force-remove file $ rm -f bar
curl Interact with URLs $ curl -O example.com
which Locate a program on the path $ which curl
head <file> Display first part of file $ head foo
tail <file> Display last part of file $ tail bar
wc <file> Count lines, words, bytes $ wc foo
cmd1 | cmd2 Pipe cmd1 to cmd2 $ head foo | wc
ping <url> Ping a server URL $ ping google.com
less <file> View file contents interactively $ less foo
grep <string> <file> Find string in file $ grep foo bar.txt
grep -i <string> <file> Find case-insensitively $ grep -i foo bar.txt
ps Show processes $ ps aux
top Show processes (sorted) $ top
kill -<level> <pid> Kill a process $ kill -15 24601
pkill -<level> -f <name> Kill matching processes $ pkill -15 -f spring
