MATHEMATICIAN
Douglas McIlroy
1932 - Today

Douglas McIlroy
Malcolm Douglas McIlroy (born 1932) is an American mathematician, engineer, and programmer. As of 2019 he is an Adjunct Professor of Computer Science at Dartmouth College. McIlroy is best known for having originally proposed Unix pipelines and developed several Unix tools, such as echo, spell, diff, sort, join, graph, speak, and tr. He was also one of the pioneering researchers of macro processors and programming language extensibility. Read more on Wikipedia
His biography is available in different languages on Wikipedia. Douglas McIlroy is the 826th most popular mathematician (down from 802nd in 2019), the 8,592nd most popular biography from United States (down from 7,897th in 2019) and the 63rd most popular American Mathematician.
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Among MATHEMATICIANS
Among mathematicians, Douglas McIlroy ranks 826 out of 1,004. Before him are Mary Everest Boole, Anatoly Karatsuba, Stefan Mazurkiewicz, William Henry Young, S. R. Srinivasa Varadhan, and Walter Rudin. After him are Hans Rademacher, Ennio de Giorgi, Hellmuth Kneser, Friedrich Engel, Corrado Segre, and George Szekeres.
Most Popular Mathematicians in Wikipedia
Go to all RankingsMary Everest Boole
1832 - 1916
HPI: 54.58
Rank: 820
Anatoly Karatsuba
1937 - 2008
HPI: 54.54
Rank: 821
Stefan Mazurkiewicz
1888 - 1945
HPI: 54.54
Rank: 822
William Henry Young
1863 - 1942
HPI: 54.53
Rank: 823
S. R. Srinivasa Varadhan
1940 - Present
HPI: 54.53
Rank: 824
Walter Rudin
1921 - 2010
HPI: 54.50
Rank: 825
Douglas McIlroy
1932 - Present
HPI: 54.47
Rank: 826
Hans Rademacher
1892 - 1969
HPI: 54.47
Rank: 827
Ennio de Giorgi
1928 - 1996
HPI: 54.47
Rank: 828
Hellmuth Kneser
1898 - 1973
HPI: 54.46
Rank: 829
Friedrich Engel
1861 - 1941
HPI: 54.46
Rank: 830
Corrado Segre
1863 - 1924
HPI: 54.45
Rank: 831
George Szekeres
1911 - 2005
HPI: 54.39
Rank: 832
Contemporaries
Among people born in 1932, Douglas McIlroy ranks 411. Before him are Robert Coover, Gaudencio Rosales, Maya Kristalinskaya, Fazu Aliyeva, Jerzy Pawłowski, and Oliver Nelson. After him are Jiří Havlis, Gaston Mercier, Cormac Murphy-O'Connor, Guillaume Bieganski, Ivan Šantek, and François Deguelt.
Others Born in 1932
Go to all RankingsRobert Coover
WRITER
1932 - 2024
HPI: 54.54
Rank: 405
Gaudencio Rosales
RELIGIOUS FIGURE
1932 - Present
HPI: 54.53
Rank: 406
Maya Kristalinskaya
SINGER
1932 - 1985
HPI: 54.53
Rank: 407
Fazu Aliyeva
SOCIAL ACTIVIST
1932 - 2016
HPI: 54.52
Rank: 408
Jerzy Pawłowski
POLITICIAN
1932 - 2005
HPI: 54.51
Rank: 409
Oliver Nelson
MUSICIAN
1932 - 1975
HPI: 54.51
Rank: 410
Douglas McIlroy
MATHEMATICIAN
1932 - Present
HPI: 54.47
Rank: 411
Jiří Havlis
ATHLETE
1932 - 2010
HPI: 54.45
Rank: 412
Gaston Mercier
ATHLETE
1932 - 1974
HPI: 54.44
Rank: 413
Cormac Murphy-O'Connor
RELIGIOUS FIGURE
1932 - 2017
HPI: 54.41
Rank: 414
Guillaume Bieganski
SOCCER PLAYER
1932 - 2016
HPI: 54.41
Rank: 415
Ivan Šantek
SOCCER PLAYER
1932 - 2015
HPI: 54.39
Rank: 416
François Deguelt
SINGER
1932 - 2014
HPI: 54.37
Rank: 417
In United States
Among people born in United States, Douglas McIlroy ranks 8,594 out of 20,380. Before him are Walter J. Ong (1912), James P. Bagian (1952), David Todd Wilkinson (1935), D. B. Woodside (1969), Tom Arnold (1959), and Lucien Carr (1925). After him are David Blatt (1959), Larry Fine (1902), Peter Yarrow (1938), Tory Lane (1982), DeWitt Clinton (1769), and Paul Dano (1984).
Others born in United States
Go to all RankingsWalter J. Ong
WRITER
1912 - 2003
HPI: 54.48
Rank: 8,588
James P. Bagian
ASTRONAUT
1952 - Present
HPI: 54.48
Rank: 8,589
David Todd Wilkinson
ASTRONOMER
1935 - 2002
HPI: 54.48
Rank: 8,590
D. B. Woodside
ACTOR
1969 - Present
HPI: 54.48
Rank: 8,591
Tom Arnold
ACTOR
1959 - Present
HPI: 54.47
Rank: 8,592
Lucien Carr
POLITICIAN
1925 - 2005
HPI: 54.47
Rank: 8,593
Douglas McIlroy
MATHEMATICIAN
1932 - Present
HPI: 54.47
Rank: 8,594
David Blatt
BASKETBALL PLAYER
1959 - Present
HPI: 54.47
Rank: 8,595
Larry Fine
ACTOR
1902 - 1975
HPI: 54.47
Rank: 8,596
Peter Yarrow
SINGER
1938 - 2025
HPI: 54.47
Rank: 8,597
Tory Lane
PORNOGRAPHIC ACTOR
1982 - Present
HPI: 54.46
Rank: 8,598
DeWitt Clinton
POLITICIAN
1769 - 1828
HPI: 54.46
Rank: 8,599
Paul Dano
ACTOR
1984 - Present
HPI: 54.46
Rank: 8,600
Among MATHEMATICIANS In United States
Among mathematicians born in United States, Douglas McIlroy ranks 63. Before him are Curtis T. McMullen (1958), Hassler Whitney (1907), Daniel Lewin (1970), Rudy Rucker (1946), Morris Kline (1908), and Edward O. Thorp (1932). After him are Robert Daniel Carmichael (1879), Marston Morse (1892), Tom M. Apostol (1923), Michael Aschbacher (1944), Garrett Birkhoff (1911), and Kenneth Appel (1932).
Curtis T. McMullen
1958 - Present
HPI: 56.01
Rank: 57
Hassler Whitney
1907 - 1989
HPI: 55.89
Rank: 58
Daniel Lewin
1970 - 2001
HPI: 55.48
Rank: 59
Rudy Rucker
1946 - Present
HPI: 55.23
Rank: 60
Morris Kline
1908 - 1992
HPI: 54.85
Rank: 61
Edward O. Thorp
1932 - Present
HPI: 54.63
Rank: 62
Douglas McIlroy
1932 - Present
HPI: 54.47
Rank: 63
Robert Daniel Carmichael
1879 - 1967
HPI: 53.65
Rank: 64
Marston Morse
1892 - 1977
HPI: 53.65
Rank: 65
Tom M. Apostol
1923 - 2016
HPI: 53.55
Rank: 66
Michael Aschbacher
1944 - Present
HPI: 53.50
Rank: 67
Garrett Birkhoff
1911 - 1996
HPI: 53.32
Rank: 68
Kenneth Appel
1932 - 2013
HPI: 53.29
Rank: 69