CS35L/secondLabNotes.txt at master · DevYanB/CS35L · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

//==================================================================================================================
GENERAL LINUXOS STUFF
//==================================================================================================================User/group management in linuxOS:
	add user: adduser [new_account] OR useradd[new_account]
	edit user attribvutes: usermod
	remove user: userdel -remove [user[]

	add group: groupadd
	adding user to group: usermod
	remove a group: groupdel

Process management with ps and kill
	- Process: Instance of computer program in execution
	- ps: list processes that are currently running
	- kill: terminate a running process
		kill <PID>

Daemon:
	- A process that runs in the background
	- Example: cron
		- Enables users to shcedule jobs to run periodically at certain times (cron jobs)
		- Usage: Full backup every month

diff command:
	shows differences in files
	echo "Hello" > file1
	echo "Helloo" > file2
	diff file1 file2
	:
	1c1
	< Hello
	---
	> Helloo

wget: download things off of the
	- Non-interactive network downloader

//==================================================================================================================
EMACS
//==================================================================================================================

Emacs is:
	- Customizeable (users can customize font, colors, etc... in ~/emacs without programming)
	- Extensible (run lisp scripts to define new commands)
	- Self Documenting (C-h r [manual] and C-h t [tutorial])
	- Real-time (edits are displayed on screen as they occur)

Basic Editing (SLIDES)

Directory edit and navigate:
	- C-x d
	- Allows you to operate on files
	- Allows you to nagivate file system