WARNING: Some of the code has changed from what I handed out on 2/20/95.
In particular, some functions take slightly different arguments.

Copy this directory (~kwc/suffix) to some place where you can write.

cd to your copy
run 'make'

# create the suffix array
# It is important to redirect the output to $1.suf
$ sufsort1 data/genesis > data/genesis.suf

# make a concordance of a phrase
$ echo 'she conceived again' | suflookup data/genesis | pcontext -l15 -r40 data/genesis
evi._29:35 And she conceived again, and bare a son: and
 me._29:33 And she conceived again, and bare a son; and
eon._29:34 And she conceived again, and bare a son; and
e Er._38:4 And she conceived again, and bare a son; and

# suflookup takes an optional -c arg which allows you to print n
# lines above and below the pattern of interest.
echo 'Be fruitf' | suflookup -c1 data/genesis | pcontext -l0 data/genesis
Bashemath the wife of Esau._36:11 And the sons of 
Be fruitful, and multiply, and fill the waters in 
Be fruitful, and multiply, and replenish the earth
Be fruitful, and multiply, and replenish the earth
Because I said, Lest I die for her._26:10 And Abim

# compute the shared lengths
$ sufshared data/genesis > data/genesis.shared

# find strings of 50 or more characters that are repeated
$ itoa < data/genesis.shared | awk '$1 > 50 {print $1 "\t" NR-1}' > /tmp/long

# print out the first 10 strings with 50 or more characters that are repeated
$ awk '{print $2}' /tmp/long | atoi | aref -s4 -a data/genesis.suf | \
 pcontext -l0 -r50 data/genesis | head
 And she conceived again, and bare a son; and said
 And, behold, there came up out of the river seven
 Asenath the daughter of Potipherah priest of On b
 Be fruitful, and multiply, and replenish the eart
 Behold now, I have taken upon me to speak unto th
 I lifted up my voice and cried, that he left his 
 Thou shalt not take a wife of the daughters of Ca
 Ye shall not see my face, except your brother [be
 after his kind: and God saw that [it was] good._1
 after his kind: and God saw that [it was] good._1

# same as above, but prints out the frequency as well
awk '{print $2}' /tmp/long | atoi | aref -s4 -a data/genesis.suf | \
 pcontext -n '
' -l0 -r50 data/genesis | suffreq -n '
' data/genesis | head
2	 And she conceived again, and bare a son; and said
2	 And, behold, there came up out of the river seven
2	 Asenath the daughter of Potipherah priest of On b
2	 Be fruitful, and multiply, and replenish the eart
2	 Behold now, I have taken upon me to speak unto th
2	 I lifted up my voice and cried, that he left his 
2	 Thou shalt not take a wife of the daughters of Ca
2	 Ye shall not see my face, except your brother [be
3	 after his kind: and God saw that [it was] good.
1
3	 after his kind: and God saw that [it was] good.
1