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.help envget Feb86 language
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NAME
envget -- get the string value of an environment variable
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USAGE
envget varname
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PARAMETERS
.ls varname
The environment variable whose value is to be returned.
.le
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DESCRIPTION
\fIEnvget\fR returns the string value of the named environment variable.
The user is prompted for the value if the variable has not yet been defined.
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EXAMPLES
1. Construct a filename using the value of the environment variable
"editor", and page the file thus named.
cl> page ("dev$" // envget ("editor") // ".ed")
2. Compute and print the center line on the terminal screen.
cl> = ((int (envget ("ttynlines")) + 1) / 2)
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SEE ALSO
set, show
.endhelp
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