Bourne shell. Where differences appear between the POSIX.2
standard and traditional sh behavior, Bash follows POSIX.
.PP
-The Korn Shell (\fBksh\fP) is a descendent of the Bourne shell written
+The Korn Shell (\fBksh\fP) is a descendant of the Bourne shell written
at AT&T Bell Laboratories by David Korn\(dg. It provides a number of
useful features that POSIX and Bash have adopted. Many of the
interactive facilities in POSIX.2 have their roots in the ksh:
.PP
Bash implements the
.B bind
-builtin for more dyamic control of readline than the startup file
+builtin for more dynamic control of readline than the startup file
permits.
.B Bind
is used in several ways. In
builtins to manipulate the history list.
The value of
.B $HISTFILE
-specifes the file where Bash writes the command history on exit and
+specifies the file where Bash writes the command history on exit and
reads it on startup.
.B $HISTSIZE
is used to limit the number of commands saved in the history.