I have two files containing words. I want to print the are in file 1 but
NOT in file 2.
How do I go about?

file 1:
 ABL1
1     ALKBH1
2     ALKBH2
3     ALKBH3
4    ANKRD17
5      APEX1
6      APEX2
7       APTX
8      ASF1A
9      ASTE1
10       ATM
11       ATR
12     ATRIP
13      ATRX
14     ATXN3
15     BCCIP
16       BLM
17     BRCA1
18     BRCA2


file2:
 ALKBH2
1    ALKBH3
2     APEX1
3     APEX2
4      APLF
5      APTX
6       ATM
7       ATR
8     ATRIP
9       BLM
10    BRCA1
11    BRCA2
12    BRIP1
13   BTBD12
14     CCNH

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