Filter last occurrence on file


filter last occurrence containing the DHCP string
tac /var/log/syslog | grep -m 1 'DHCP'

filter 3 lines between the last occurrence containing the err or warn string
tac /var/log/syslog | egrep -m 1 -C 3 'err|warn'
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Set https proxy variable on windows

 Check variables:  [System.Environment]::GetEnvironmentVariable("HTTP_PROXY","user"); [System.Environment]::GetEnvironme...

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