System Administration – Wisdom And Wonder

Hide All Windows in macOS

This works on macOS 11

tell application "System Events"
	repeat with x in (get name of processes whose visible is true)
		set visible of process x to false
	end repeat
end tell

along with usage and download details

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macOS 12 Sierra Brew Users: Read This Before Updating Anything

When I update Brew I minimize the terminal window so I can work on something else while it is running. Every so often I check to see if it finished. Then I read through the history to see if there is any work I need to perform by hand. For example sometimes Brew can’t link things and other times the package won’t even install. This has always worked well. Today I had a funny surprise though.

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SSH Into Host And Attach To Tmux Session

function sshtmuxattach {
if [[ $# -ne 2 || -z “$1” || -z “$2” ]] ; then
printf “Usage: ${FUNCNAME[0]} \n”
printf “SSH into HOST and attach to Tmux SESSION.\n”
return 1
fi
local host=$1;
local session=$2
ssh “$host” -t tmux attach -t “$session”
}

You Are Using rsync Incorrectly And You Will Lose Everything Unless You Read This Now!

rsync is generous in its functionality and flexible in how you use it. The only bad things it can do are what you tell it. The most important thing that you need to know immediately about rsync is that you can get a preview of what you are telling it to do before it actually does it. Here is how