Learning the Korn Shell 
by Bill Rosenblatt


Here are the changes that were made for the 8/98 reprint:


(25) para. 5, line 2, "For example, print 'Bob\'s hair
is brown' will not give you":  changed font of the second
apostrophe to match the font of the first and last apostrophe


{116} code lines 1-6, replaced

	function pushd {
	    dirname=$1
	    cd ${dirname:?"missing directory name."}
	    DIRSTACK="$dirname ${DIRSTACK:-$PWD}"
	    print "$DIRSTACK"
	}

with

	function pushd
        {
        dirname=$1
        cd ${dirname:?"missing directory name."}
        DIRSTACK="$PWD ${DIRSTACK:-$OLDPWD}"
        print "$DIRSTACK"
        }

{116} para. 4, lines 1-3:  changed
"The third line of the function pushes the new directory onto
the stack.  The expression ${DIRSTACK:-$PWD} evaluates to
$DIRSTACK if it is non-null or $PWD (the current directory)
if it is null."

to

"The third line of the function pushes the directory that
was current before the change onto the stack.  The expression
${DIRSTACK:-$OLDPWD} evaluates to $DIRSTACK if it is non-null
or $OLDPWD (the current directory before cd) if it is null."

("S{DIRSTACK:-$OLDPWD}", "$DIRSTACK", "$OLDPWD" and "cd" are
bold.)



{209} code line 5, replaced

	awk '{FS=":"; print $1, $6}' /etc/passwd |

with

	awk 'BEGIN {FS=":"} {print $1, $6}' /etc/passwd


{209} para. 9, line 3:  changed "The FS=":" is analogous"
to "The BEGIN{FS=":"} is analogous"