Linux TIPS collect (神奇的知识集合）

1. http_proxy environment in sudo command： http_proxy=xxx:xxx sudo yourcommand doesn't work, you should sudo http_proxy=xxx:yyy yourcommand instead.
2. ssh running local script: ssh username@hostname 'bash -s' < your.local.script.sh
3. ssh running local script with paraemters: ssh username@hostname < your.local.script.sh 'bash -s' yourparam1 yourparam2 doesn't work, you should runssh username@hostname < your.local.script.sh 'bash -s' -- yourparam1 yourparam2
4. make your fonts configuration work without a reboot: sudo fc-cache -fv

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