Unix Review of Basics¶

File manipulation¶

mkdir

rmdir

touch

cp

mv

rm

chmod

Text¶

echo

printf

cat

head

tail

less

cut

Regular expressions¶

grep

I/O and streams¶

>

2>

&>

>>

<

Pipe¶

[1]:

`|`

bash: command substitution: line 1: syntax error near unexpected token `|'
bash: command substitution: line 1: `|'

Utilities¶

wc

sort

rev

tr

gzip, gunzip

tar

md5sum

Scripting¶

#

\

GREET="hello"
echo $GREET

export GREET="hello"

for; do; done

if; then; else; fi