- readonly - set readonly attribute on variables
- readonly [ options ] [name[=value]...]
- readonly sets the readonly attribute on each of the variables specified by name which prevents their values from being changed.
If =value is specified, the variable name is set to value before the variable is made readonly.
- Within a type definition, if the value is not specified, then a value must be specified when creating each instance of the type and the value
is readonly for each instance.
- If no names are specified then the names and values of all readonly variables are written to standard output.
- readonly is built-in to the shell as a declaration command so that field splitting and pathname expansion are not performed on the
arguments. Tilde expansion occurs on value.
- Causes the output to be in a form of readonly commands that can be used as input to the shell to recreate the current set
of readonly variables.
- Successful completion.
- An error occurred.
- sh(1), typeset(1)
- readonly (AT&T Research) 2008-06-16
- David Korn <email@example.com>
- Copyright © 1982-2010 AT&T Intellectual Property