This would edit “/etc/ld.so.conf” which is owned by root and allow you to add “/usr/local/BerkeleyDB.4.6/lib” to the end of the file. “$” represents the last line of the file (this is determined by Vi/Ex). If you were to put the number “5” in place of “$” and there was only 2 lines in the file this would fail since that line does not exist.
sudo ex - /etc/ld.so.conf << BLAH
$ append
/usr/local/BerkeleyDB.4.6/lib
.
wq
BLAH
This will search “/etc/openldap/slapd.conf” for “var//” and replace that with “var/” AND “etc//” and replace that with “etc/”.
sudo ex - /etc/openldap/slapd.conf << BLAH
g/var\/\//s//var\//g
g/etc\/\//s//etc\//g
wq
BLAH
Reference Here for a command guide.
Reference Here for a tutorial.