I'm the CTO of a software company specializing in solutions for fair and conference management and the infrastructure to host those solutions.
:w !sudo tee %
Save a file in vim when you neglected to open the file with
sudobut already made changes you don't want to lose.
Evaluate globbing on your current input on the bash command line.
Pump out the postfix queue on your backup MX after you've fixed the issue with your primary MX.
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