Return PROFILE's number or 0. An absolute file name must be used.

Optionally, if BASE-PROFILE is provided, use it instead of PROFILE to construct the regexp matching generations. This is useful in special cases like: (generation-number "/run/current-system" %system-profile).

Return the number of the generation before generation NUMBER of PROFILE, or 0 if none exists. It could be NUMBER - 1, but it's not the case when generations have been deleted (there are "holes").

Apply PROC to all the entries of MANIFEST and return a new manifest.

Remove entries for each of PATTERNS from MANIFEST. Each item in PATTERNS must be a manifest-pattern.

Return a list of PROFILE's generations.

Return the list of search path specifications that apply to MANIFEST, including the search path specification for $PATH.

Return the first item of MANIFEST that matches PATTERN, or #f if there is no match..

Read the manifest of PROFILE and evaluate the values of search path environment variables required by PROFILE; return a list of specification/value pairs. If MANIFEST is not #f, it is assumed to be the manifest of PROFILE, which avoids rereading it.

Use GETENV to determine the current settings and report only settings not already effective.

Atomically switch PROFILE to the generation NUMBER. Return the number of the generation that was current before switching.

Return PROFILE's generation shifted from the CURRENT generation by SHIFT. SHIFT is a positive or negative number. Return #f if there is no such generation.