Shell control statement

Summary of statements in Shell integration:

If statement:

But the if statement of the Branch:

If []; then

CMD;

Fi

If statement for dual Branch:

If []; then

Cmd1;

Else

Cmd2;

Fi

Multi-branch if statement:

If []; then

Cmd1;

Elif []; then

Cmd2;

Elif []; then

Cmd3;

...

Else

CMD;

Fi

Case statement:

Case $ variable name in

Condition 1)

Cmd1

;;

Condition 2)

Cmd2

;;

*)

CMD

;;

Esac

While statement:

While (); do

CMD;

Done

.

Until statement;

Until (); do

CMD;

Done

.

For statement:

First:

For variable in value 1, value 2...

Do

CMD;

Done

Values 1 and 2 can be replaced by seq commands. (For example, 'seq 10 ')

Second:

For (initialize variable value; end loop condition; Operation ))

Do

CMD;

Done

Shell control statement