(guile.info.gz) Runtime Environment
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(guile.info.gz) Time
(guile.info.gz) POSIX
(guile.info.gz) Processes
38.6 Runtime Environment
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-- Scheme Procedure: program-arguments
-- Scheme Procedure: command-line
-- C Function: scm_program_arguments ()
Return the list of command line arguments passed to Guile, as a
list of strings. The list includes the invoked program name,
which is usually `"guile"', but excludes switches and parameters
for command line options like `-e' and `-l'.
-- Scheme Procedure: getenv nam
-- C Function: scm_getenv (nam)
Looks up the string NAME in the current environment. The return
value is `#f' unless a string of the form `NAME=VALUE' is found,
in which case the string `VALUE' is returned.
-- Scheme Procedure: setenv name value
Modifies the environment of the current process, which is also the
default environment inherited by child processes.
If VALUE is `#f', then NAME is removed from the environment.
Otherwise, the string NAME=VALUE is added to the environment,
replacing any existing string with name matching NAME.
The return value is unspecified.
-- Scheme Procedure: environ [env]
-- C Function: scm_environ (env)
If ENV is omitted, return the current environment (in the Unix
sense) as a list of strings. Otherwise set the current
environment, which is also the default environment for child
processes, to the supplied list of strings. Each member of ENV
should be of the form `NAME=VALUE' and values of `NAME' should not
be duplicated. If ENV is supplied then the return value is
unspecified.
-- Scheme Procedure: putenv str
-- C Function: scm_putenv (str)
Modifies the environment of the current process, which is also the
default environment inherited by child processes.
If STRING is of the form `NAME=VALUE' then it will be written
directly into the environment, replacing any existing environment
string with name matching `NAME'. If STRING does not contain an
equal sign, then any existing string with name matching STRING will
be removed.
The return value is unspecified.
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