Add special '$GID' variable in Eshell

See bug#64529.

* lisp/eshell/esh-var.el (eshell-variable-aliases-list): Add '$GID'.

* test/lisp/eshell/esh-var-tests.el (esh-var-test/gid-var): New test.

* doc/misc/eshell.texi (Variables): Document '$GID'.

* etc/NEWS: Announce this change (and the previous change for '$UID').

1 files changed, 5 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 0556e8be585..246e6b21838 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -202,6 +202,11 @@ or get a sublist of elements 2 through 4 with '$my-list[2..5]'.  For
 more information, see the "(eshell) Dollars Expansion" node in the
 Eshell manual.
 
++++
+*** Eshell's '$UID' and '$GID' variables are now connection-aware.
+Now, when expanding '$UID' or '$GID' in a remote directory, the value
+is the user or group ID associated with the remote connection.
+
 ---
 *** Eshell now uses 'field' properties in its output.
 In particular, this means that pressing the '<home>' key moves the