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This article takes a look at using linux's let command to execute one or more expressions. There is a certain reference value, friends in need can refer to, hope to help you.

The let command is a tool for evaluation in bash that executes one or more expressions and does not require $to represent variables. If the expression contains spaces or other special characters, it must be quoted.

Syntax format: let [parameters]

Reference example

Self-adding operation:

[root@linuxcool ~] # let no++

Self-subtractive operation:

The above [root@linuxcool ~] # let no-- is a brief introduction to using the let command of linux to execute one or more expressions. Of course, you have to use the above differences in detail before you understand it. If you want to know more, welcome to follow the industry information channel!

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