expr command in Linux with Examples

expr command means Evaluate expressions.

Syntax

expr EXPRESSION
expr OPTION

In man page the describe it

• expr – evaluate expressions.
• man expr – More details information about expr command.

expr command in Linux with Examples

$ expr 20 \+ 2
$ expr 20 \- 2

Conclusion

expr command is the simple the command in Linux. It is the most popular in use terminal Linux evaluate expressions.