Basic commands for daily life usage of powershell

Powershell-basics.md

Unix head, tail, sed equivalent commands in Windows Powershell

Get-Content (alias: gc) is your usual option for reading a text file.

gc log.txt -head 10 
gc log.txt -tail 10
gc log.txt -tail 10 -wait # equivalent to tail -f
gc log.txt | %{ $_ -replace '\d+', '($0)' }         # sed

Unix rm equivalent commmand in Powershell

Remove-Item is the command. it has a nice alias: rm.

rm -R -Force ./directory

Open Notepad++ from PowerShell

Start notepad++ ex1.py

Search/Remove/Rename specific files using PowerShell

# search and print
dir -Path C:\FolderToSearch\ -Filter File*.file* -Recurse | %{$_.FullName}
dir -Path C:\Folder* -Filter File*.file* -Recurse | %{$_.FullName}

# delete
ls *.avi -Recurse | foreach {rm $_}

# rename all .txt to .log in current directory
Get-ChildItem | Rename-Item -NewName { $_.Name -replace '\.txt$','.log' }

# append .jpg extension to all files in current directory
Get-ChildItem  | Rename-Item -NewName { $_.Name +'.jpg'}

# rename only those files that contains hello as file name 
Get-ChildItem *hello* | Rename-Item -NewName { $_.Name -replace '\.txt$','.log' }

Download content and save to file

wget, curl is an alias of Invoke-WebRequest

# returns a HtmlWebResponseObject with many useful information
wget https://www.example.org

# get statuscode from response object
(curl https://www.example.org).StatusCode 

# using pipe to get status code
wget https://www.example.org | Select-Object  -Expand StatusCode 

# writing unicode content to file
curl https://www.example.org | Select-Object  -Expand Content > example.txt