Grep (2.4.2):
ftp://ftp.gnu.org/gnu/grep/
egrep, fgrep and grep
egrep prints lines from files matching an extended regular expression pattern.
fgrep prints lines from files matching a list of fixed strings, separated by newlines, any of which is to be matched.
grep prints lines from files matching a basic regular expression pattern.
Grep-2.4.2 needs the following to be installed:
autoconf: autoconf, autoheader
automake: aclocal, automake
bash: sh
binutils: as, ld
diffutils: cmp
fileutils: chmod, install, ls, mkdir, mv, rm
gettext: msgfmt, xgettext
gcc: cc, cc1, collect2, cpp0, gcc
glibc: getconf
grep: egrep, fgrep, grep
m4: m4
make: make
mawk: mawk
sed: sed
sh-utils: basename, echo, expr, hostname, sleep, uname
texinfo: install-info, makeinfo
textutils: cat, tr