Bash Cheat Sheet printable pdf download

BASH Cheat Sheet

2017 ICOS Big Data Summer Camp

Most BASH commands

$ [command] [options] [input] [output]

● follow the pattern

$ [command] --help

● tell you how to use them if you type

$ man [command]

● have a manual file with more info

● are explained with examples if you google them

“bash [command] example”

Command Description

Quit

Example

Repeat the previous command.

Concatenate. Takes the contents of a file and

cat

[ctrl]+C

cat file.txt

puts them on the end of something else (your

screen, another file, etc.)

Change Directory. Move from one folder

cd my_folder/data

(directory) to another.

[ctrl]+C

cp original.html copy.html

Copy. Make a copy of a file. See also: mv.

Difference. Print a list of all lines that are different

diff

[ctrl]+C

diff old.csv new.csv

between two files.

echo

echo "Hello, World!"

Echo. Repeat whatever I type next.

Editor Macros. Program for editing files.

emacs

Advanced users. See also: vi, nano, pico.

Find. Search for files that match some criteria

find

[ctrl]+C

find . -name "*.html" -size +100k

(size, date modified, name, type, and more).

Search for lines of text that match a pattern and

grep

[ctrl]+C

grep “href” kitten.html

print them (similar to [ctrl]+F or [cmd]+F). See

also: sed.

head

[ctrl]+C

head long_file.txt

Print just the top (head) of a file. See also: tail.

Hisham Table of Processes. Like "top", but with

htop

[ctrl]+C

htop

more information and colors.

List Long. The same as "ls -l". Will show the size,

ll -h

owner, date, and permissions for all files in the

[ctrl]+C

current directory.

[ctrl]+C

List files in the current directory.

Manual. Show the manual entry for a command

man

man cat

to see how to use it and what the options are.

(Use arrow keys to scroll.)

Make Directory. Create a new directory (folder).

mkdir

mkdir new_folder

Bash Cheat Sheet

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