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Appendix B. Reference Information
Contents:
Invocation Options
Built-in Commands and Keywords
Predefined Aliases
Built-in Shell Variables
Test Operators
Options
Typeset Options
Arithmetic
Emacs Mode Commands
vi Control Mode Commands
Using getopts
B.1. Invocation Options
Here is a list of the options you can use when invoking the Korn shell. In addition to these, any set option can be used on the command line; see the table on options later in this appendix. Login shells are usually invoked with the options -i (interactive), -s (read from standard input), and -m (enable job control).
| Option | Meaning |
|---|---|
| -c string | Execute string, then exit. |
| -D | Print all $"..." strings in the script. This is for use in creating a database of locale-specific translations of strings in a script. |
| -i | Interactive shell. Ignore signals TERM, INTR, and QUIT. |
| -r | Restricted shell. See Chapter 10. |
| -R filename | Create a cross-reference database for variable and command definitions in filename. May not be compiled in. |
| -s | Read commands from the standard input. If an argument is given, this flag takes precedence (i.e., the argument won't be treated as a script name and standard input will be read). |
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| A.9. Workalikes on PC Platforms |  | B.2. Built-in Commands and Keywords |
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