| Name: | getenv - evaluates if a string is an evironment variable
|
| Synopsis: | string getenv -> path true
string getenv -> false
|
| Description: | getenv checks if the string is an environment variable. If
this is the case the path of the variable and true is pushed on the stack,
otherwise a false is pushed on the stack and the string is lost.
|
| Examples: |
SLI ] (HOME) getenv
SLI [2] pstack
true
(/home/gewaltig)
SLI ] (NONEXISTING) getenv =
false
SLI ] (SLIDATADIR) getenv
SLI [2] { (Using root path: ) =only = }
SLI [3] { (Warning: $SLIDATADIR undefined) =}
SLI [4] ifelse
Using root path: /home/gewaltig/nest/release/release
SLI ] (/home) getenv
false
|
| Remarks: | if getenv is used with the wrong argument (e.g. integer),
the SLI Session is terminated
|
| Author: | docu by Marc Oliver Gewaltig and Sirko Straube
| SeeAlso: | environment |
|
| Source: | /home/abuild/rpmbuild/BUILD/nest-2.4.1/sli/slistartup.cc
|