Sayed Ahmed

•T/F: Microsoft Windows is a System Software •T/F: Database Management Systems are System Software •T/F: Device Drivers are System Software •Microsoft Word is an Application Software •True or False: Operating system provides a kernel and Shell/Interface software (among other things) •T/F: Cars do not have any Microprocessor and Cars cannot have any Operating System •What …

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Kill a Process •kill PID •kill -SIGNAL PID •Kill –s 9 pid •Kill -9 pid •kill -15 PID •

Important Notes •System Processes •usually run •in the background •Use & to start •a process to the background •Use fg •to bring to foreground •Ctrl+z takes to background

Stop-Process -Name “notepad” Stop-Process -Id 3952 -Confirm –PassThru calc $p = Get-Process -Name “calc” Stop-Process -InputObject $p Get-Process | Where-Object {$_.HasExited} Get-Process -Name “lsass” | Stop-Process

Get-Process Get-Process winword, explorer | Format-List * Get-Process | Where-Object {$_.WorkingSet -gt 20000000} $A = Get-Process $A | Get-Process | Format-Table -View priority Get-Process pwsh -FileVersionInfo (did not work) Get-Process SQL* -Module Ref: Internet/Google – MS Sites

ps x ps -e ps aux ps –u username

systemctl start httpdsystemctl start mariadbsystemctl restart httpdsystemctl restart mariadb systemctl enable httpdsystemctl enable mariadb

Monitor Process in Linux •ps •pstree •top Who Monitors Processes? •Admins •Developers as needed Tasks •start, stop, restart, status, kill

•powershell.exe -noprofile -executionpolicy bypass -file .\hello.ps1 •Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Bypass -Force; •Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted -Force; •set-executionpolicy remotesigned • •