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Hide|Show extensions for known file types from cmd

Open command line window and execute: Hide extensions reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v HideFileExt /t REG_DWORD /d 1 /f Show Extensions reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v HideFileExt /t REG_DWORD /d 0 /f

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Show logged in users and what they are doing

Open your terminal and issue the command w yes! just type w. It’s just so simple! Output: 18:11:03 up 1:01, 3 users, load average: 0.58, 0.59, 0.94 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT username tty7 17:31 1:00m 2:20 0.20s gnome-session – username pts/0 :0 17:35 31:32 48.29s 48.10s /opt/Adobe username pts/4 :0 17:39 [...]

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Show running processes in Linux

List all processes: ps -A or ps -e   List all processes: top   List all processes: ps aux or ps aux | less a: list all processes, including other users u: list processes executed by valid user x: list background processes   List all processes for specific username: ps -U <username>   List all [...]

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