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-rw-r--r--doc/gdbm.texi22
1 files changed, 22 insertions, 0 deletions
diff --git a/doc/gdbm.texi b/doc/gdbm.texi
index 4c7c5c0..d172ad7 100644
--- a/doc/gdbm.texi
+++ b/doc/gdbm.texi
@@ -1828,6 +1828,12 @@ non-interactive mode (e.g.@: when running a script), all arguments must
be supplied with each command, otherwise @command{gdbmtool} will report an
error and exit immediately.
+@cindex readline
+@cindex GNU Readline
+If the package is compiled with GNU Readline, the input line can be
+edited (@pxref{Command Line Editing, ,
+Command Line Editing, readline, GNU Readline Library}).
+
@menu
* variables:: shell variables.
* commands:: shell commands.
@@ -2113,6 +2119,22 @@ existing ones will replace them. The word @samp{nometa} turns off
restoring meta-information from the dump file.
@end deffn
+@deffn {command verb} history
+@deffnx {command verb} history @var{count}
+@deffnx {command verb} history @var{n} @var{count}
+Shows the command history list with line numbers. When used without
+arguments, shows entire history. When used with one argument,
+displays @var{count} last commands from the history. With two
+arguments, displays @var{count} commands starting from @var{n}th
+command. Command numbering starts with 1.
+
+This command is available only if GDBM was compiled with GNU Readline.
+The history is saved in file @file{.gdbmtool_history} in the user's
+home directory. If this file exists upon startup, it is read to
+populate the history. Thus, command history is preserved between
+@command{gdbmtool} invocations.
+@end deffn
+
@deffn {command verb} list
List the contents of the database.
@end deffn

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