Returns the file that a command is run from.
If traceback is available then the line that it was run from is also returned.
whereami(path_expand = FALSE, tag = NULL)character
whereami()
#> ── Running From: ./RtmpFNZcaO/callr-scr-ab6296c9f660a ──────────────────────────
whereami(path_expand = TRUE)
#> ── Running From: /tmp/RtmpFNZcaO/callr-scr-ab6296c9f660a ───────────────────────