linux cmd

(ｓｕｄｏ　ｓｈｕｔｄｏｗｎ　－ｈ　ｎｏｗ)

sudo shutdown -h now

(ｃｕｔ　－ｄ　，　－ｆ　１，２，７　ｓａｍｐｌｅ．ｃｓｖ)

cut -d , -f 1,2,7 sample.csv

(ｌｅｓｓ　ｓａｍｐｌｅ．ｃｓｖ　｜　ｓｏｒｔ　－ｎ)

less sample.csv | sort -n

(ｌｅｓｓ　ｓａｍｐｌｅ．ｃｓｖ　｜　ｓｏｒｔ　－ｒｎ)

less sample.csv | sort -rn

(ｗ３ｍ　ｈｔｔｐ：／／ｍ．ｔｗｉｔｔｅｒ．ｃｏｍ)

w3m http://m.twitter.com

(ｇｒｅｐ　ｂａｓｈ　／ｅｔｃ／ｐａｓｓｗｄ)

grep bash /etc/passwd

(ｇｒｅｐ　－ｎ　ｐｓ１　／ｅｔｃ／ｂａｓｈｒｃ)

grep -n PS1 /etc/bashrc

(ｇｒｅｐ　－ｉ　ｓｙｓｔｅｍ　／ｅｔｃ／ｐａｓｓｗｄ)

grep -i system /etc/passwd

(ｅｃｈｏ　’ｈｅｌｌ’’ｗｏｒｌｄ’　｜　ｗｃ)

echo 'hell''world' | wc

(ｓｕｄｏ　ａｐｔ－ｇｅｔ　ｕｐｄａｔｅ)

sudo apt-get update

(ｓｕｄｏ　ａｐｔ－ｇｅｔ　ｉｎｓｔａｌｌ　ｐｙｔｈｏｎ３－ａｌｌ－ｄｅｖ)

sudo apt-get install python3-all-dev

(ｓｕｄｏ　ａｐｔ－ｇｅｔ　ｉｎｓｔａｌｌ　ｐｙｔｈｏｎ３－ｐｉｐ)

sudo apt-get install python3-pip

(ｌｓ　－ｌ)

ls -l

(ｃａｔ　ｈｅｌｌｏｓｉｒｉ．ｔｘｔ)

cat helloSiri.txt

(ｌｅｓｓ　ｈｅｌｌｏｓｉｒｉ．ｔｘｔ)

less helloSiri.txt

(ｃａｔ　／ｅｔｃ／ｓｅｒｖｉｃｅｓ　｜　ｌｅｓｓ)

cat /etc/services | less

(ｃａｔ　／ｅｔｃ／ｓｅｒｖｉｃｅｓ　｜　ｇｒｅｐ　ｈｔｔｐ)

cat /etc/services | grep http

(ｇｒｅｐ　’８０／．．ｐ’　／ｅｔｃ／ｓｅｒｖｉｃｅｓ)

grep '80/..p' /etc/services

(ｇｒｅｐ　’８０／［ｔｕ］［ｃｄ］’　／ｅｔｃ／ｓｅｒｖｉｃｅｓ)

grep '80/[tu][cd]' /etc/services

(ｇｒｅｐ　’［２－８］０００／ｔｃｐ／’　／ｅｔｃ／ｓｅｒｖｉｃｅｓ)

grep '[2-8]000/tcp/' /etc/services