linux

linux.sh

#!/bin/bash         # any bash-script should start with "shebang"-lint
# after #! indicate path to the bash interpetator

#############################################
# get updates 

sudo apt update
apt list --upgradable
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove

apt update && apt full-upgrade -y
-y                          # all answers are yes

sudo apt-get upgrade python3


#############################################

# find a dir
find / -type d -name 'smth_name'

cd
ls
pwd
cp
mv
cat
less
grep
echo
touch
mkdir
chown
chmod
rm
man + help


clear	                    # clear monitor

cd	                        # change dir
cd ..	                    # one steep back

ls	                        # show content list
ls /home                    # lisf of chosen dir
ls /home | more             # lisf of chosen dir with limitation
ls /home | grep smth        # lisf of chosen dir with filter by smth
ls -l                       # with parameters
ls -la                      # with parameters, with hidden files

apt update && apt full-upgrade -y
-y                          # all answers are yes

# start file
firefox filename.pdf
code bash.sh

# copy file
cp -v filename.exe /new/dir
-v                          # it displays process info

mv -v filename.exe /new/dir     # move file
mv -v filename.exe newname.exe  # rename file

# install deb package
sudo apt install ./file.deb

# nano		- is a text redactor in termonal
nano filename.smth

# cat       - show file content
cat filename.text

# grep      - filter txt files | show line in file contents smth
cat filename.text | grep smth
-i              # ignore case

# show open file and which process uses them
lsof            # list open files
lsof | more     
-u root        # by username root
-u^ root       # by except username root
-c nginx       # by process nginx
-p 333         # by process ID 333
+D /usr/bin    # by the Dir /usr/bin
-i             # by network connection
-i :80         # by files port
-i TCP         # by protocol

# ----------------------------------------------------#
# tor

apt install tor -y
servise tor status
service tor start

power_shell.ps1

##############
# PowerShell #
##############

winget upgrade -h --all  # upgrade all apps

CLS				# Очистка экрана.
MD				# Создает каталог.

START			# Выполняет указанную программу или команду в отдельном окне.
start https://www.youtube.com/	

ctrl + end			# del all after cursor
ctrl + home			# del all before cursor

cd c:\ 				# go to path
cd --               # на одну папку назад

get-childitem							# Gets the files and folders in a file system drive.
Get-ChildItem -Path c:\users\sasha 		# show list of specific path
Get-ChildItem -Recurse -Include "smth*" # find file with name "smth"

Get-ChildItem -Path c:\users\sasha\downloads -Filter '*.exe'
Get-ChildItem -filter '*.pdf' | sort LastWriteTime -descending | select name

Remove-Item name.pdf
Remove-Item (Get-ChildItem -filter "*.ico")

Get-ChildItem -filter '*.torrent' | Remove-Item -force
Get-ChildItem * -Include *.mp3, *.png
Rename-Item D:\temp\Test\test.txt test_1.txt

Move-Item (Get-ChildItem -filter "*.jpg") -destination C:\new_path

###########

$a = Get-ChildItem -Recurse -Include "smth*"    
Move-Item $a -destination "D:\new\path"

########### 

# input
$a = 3
$b = 4
$c = $a + $b

# output
echo $c         # 7
"result: $c"    # result: 7
"$c"            # 7
############

#############

$file = import-csv sample.csv       # file to variable
$file[2]                            # get only second row
$file[0..3]                         # get specified rows
$file | select title                # get only "title" column
$file | Select-Object title         # get only "title" column
$file | Select-Object title, name   # get "title" and "name" columns

get