CodePudding user response:
I also just contact, confused aboutCodePudding user response:
Multi-purpose, average daily use in contact with the command actually few, you remember don't just remember the command that a few letters, to write command also original, such as "CD" is "change direction" change path, "su" is "switch user" switch user, look here, https://blog.csdn.net/qauchangqingwei/article/details/80901321, the parameters of the command is also the first letter of certain words or abbreviations, remember the words is, if not directly -- help view the help