Linux common commands

1. 2019-12-06

umount disk: 弹出u盘的时候解决u盘被哪个程序占用问题

i) lsof

lsof (list open files)

lsof | grep ****

ii) pgrep pkill -- look up or signal processes based on name and other attributes

pgrep *** --look through the currently running processes and lists the process IDs which match the selection criterion to stdout