More commands documented.

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Patrick Kloepfer 2019-11-20 00:04:27 -05:00
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commit e9968face0

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@ -199,7 +199,7 @@ When using multiple of these joiners with a single command such as **IF**, care
##### \<expression\>
The A2osX shell contains a simple expression evaluator that can perform simple integer math operations using the \+ \- \* \/ and MOD operators. Expressions are a form of an argument used by only a handful of commands, most notably SET (to store the result of the expression into a variable) and CASE/SWITCH.
The A2osX shell contains a expression evaluator that can perform simple integer math operations using the \+ \- \* \/ and MOD operators. Expressions are a form of an argument used by only a handful of commands, most notably SET (to store the result of the expression into a variable) and CASE/SWITCH.
#!/BIN/SH
#
@ -215,7 +215,7 @@ The A2osX shell contains a simple expression evaluator that can perform simple i
##### \<op\>
\<Op\> are operators, the simple integer math functions that can be performed in the shell. They are a special argument used only in \<Expressions\>, see above. The valid \<Ops\> are \+ \- \* \/ and MOD.
\<Op\> are operators, the simple integer math functions that can be performed in the shell. They are a special kind of argument used only in \<Expressions\>, see above. The valid \<Ops\> are \+ \- \* \/ and MOD.
##### \<switch\>
@ -227,23 +227,32 @@ Values are the simplest of arguments, usually a string or an integer, which may
#### AND
IF|WHILE [ <\expression\> ] AND [ <\expression\> ]...
The **AND** reserved word is used to join 2 or more conditions together to create complex logic statements. See \<condition\> section above for more information on **AND** and examples of its usage. In addition, look at **[ANDORTESTS](EXAMPLES/ANDORTESTS.txt)**, a complete script using **AND**.
#### BREAK
BREAK
The **BREAK** command is used to exit a particular **CASE** that is part of a **SWITCH** script block. See the **CASE** command below for more information and example of using **BREAK**.
#### CALL
CALL function [\<argument\>]...
The **CALL** command is used to execute and previously defined and loaded function. When calling a function with the **CALL** command, you may pass one or more arguments which the function can use as part of its execution. See the **FUNCTION** command below for more information on creating and calling functions including examples.
| CALL | Working | CALL function \<arg\> ... |
#### CASE
| CASE | Working | CASE <expression> |
CASE <expression>
#### CD
| CD | Working | CD path or relative path |
CD path
The **CD** command is used to change the current working directory. You must supply the **CD** command a valid relative or absolute path. Examples of relative paths include SUBDIR1 (a sub-directory in the current directory), ../SUBDIR2 (a sub-directory in the parent of the current directory), and SUBDIR1/SUBDIR3 ( a subdirectory in the subdirectory SUBDIR1 of the current directory). An absolute path always begins with a / and includes the volume name of the disk drive to which change the current working directory such as /MYVOL1/VAR/LOGS (the subdirectory LOGS in the directory VAR on the disk with a volume label of MYVOL1).
#### DATE
@ -251,7 +260,9 @@ The **BREAK** command is used to exit a particular **CASE** that is part of a **
#### DEFAULT
| DEFAULT | Working | Default CASE for SWITCH |
DEFAULT
The **DEFAULT** commands is used to select the block of commands to execute for the Default Case for the **SWITCH** command. Structured appropriately, the commands after the **DEFAULT** keyword are executed when no other **CASE** was valid. See the section on **CASE** and **SWITCH** for more information and complete examples for creating your own **SWITCH** login/execution blocks.
#### ECHO
@ -293,11 +304,14 @@ CORE.STACK.MAX = 128....so each CALL consumes about 7 bytes of stack (return Ctx
#### IF
| IF | Working | [ \<condition\> ] <br> ![ \<condition\> ]|
IF [ <\expression\> ]...
#### LOOP
| LOOP | Working | Terminator for WHILE block |
LOOP
The **LOOP** command...
#### MD
@ -307,9 +321,10 @@ CORE.STACK.MAX = 128....so each CALL consumes about 7 bytes of stack (return Ctx
| NOHUP | Working | Start a process with PPID=PS0 (Daemon) |
#### OR
IF|WHILE [ <\expression\> ] OR [ <\expression\> ]...
The **OR** reserved word is used to join 2 or more conditions together to create complex logic statements. See \<condition\> section above for more information on **OR** and examples of its usage. In addition, look at **[ANDORTESTS](EXAMPLES/ANDORTESTS.txt)**, a complete script using **OR**.
#### PAUSE