Category: Root

Misc : Q & A on Operating Systems

•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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Terminating Process in Linux

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

Process Control in Linux

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

Power Shell: Stop Process

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

Power Shell: 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

Linux ps command

ps x ps -e ps aux ps –u username

Some Web Administration Tasks

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

Monitor Process in Linux

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

Linux Shell Script: Until Example

How to execute Power Shell Scripts

•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 • •