So, there is a large file where I have to conduct several search using bash shell scripting.
The file is like this:
TITLE and AUTHOR ETEXT NO. Aspects of plant life; with special reference to the British flora, 56900 by Robert Lloyd Praeger The Vicar of Morwenstow, by Sabine Baring-Gould 56899 [Subtitle: Being a Life of Robert Stephen Hawker, M.A.] Raamatun tutkisteluja IV, menness� Charles T. Russell 56898 [Subtitle: Harmagedonin taistelu] [Language: Finnish] Raamatun tutkisteluja III, menness� Charles T. Russell 56897 [Subtitle: Tulkoon valtakuntasi] [Language: Finnish] Tom Thatcher's Fortune, by Horatio Alger, Jr. 56896 A Yankee Flier in the Far East, by Al Avery 56895 and George Rutherford Montgomery [Illustrator: Paul Laune] Nancy Brandon's Mystery, by Lillian Garis 56894 Nervous Ills, by Boris Sidis 56893 [Subtitle: Their Cause and Cure] Pens�es sans langage, par Francis Picabia 56892 [Language: French] Helon's Pilgrimage to Jerusalem, Volume 2 of 2, by Frederick Strauss 56891 [Subtitle: A picture of Judaism, in the century which preceded the advent of our Savior] Fra Tommaso Campanella, Vol. 1, di Luigi Amabile 56890 [Subtitle: la sua congiura, i suoi processi e la sua pazzia] [Language: Italian] The Blue Star, by Fletcher Pratt 56889 Importanza e risultati degli incrociamenti in avicoltura, 56888 di Teodoro Pascal [Language: Italian] The Junior Classics, Volume 3: Tales from Greece and Rome, by Various 56887 ~ ~ ~ ~ Posting Dates for the below eBooks: 1 Mar 2018 to 31 Mar 2018 ~ ~ ~ ~ TITLE and AUTHOR ETEXT NO. The American Missionary, Volume 41, No. 1, January, 1887, by Various 56886 Morganin miljoonat, menness� Sven Elvestad 56885 [Author a.k.a. Stein Riverton] [Subtitle: Salapoliisiromaani] [Language: Finnish] "Trip to the Sunny South" in March, 1885, by L. S. D 56884 Balaam and His Master, by Joel Chandler Harris 56883 [Subtitle: and Other Sketches and Stories] Susien saaliina, menness� Jack London 56882 [Language: Finnish] Forged Egyptian Antiquities, by T. G. Wakeling 56881 The Secret Doctrine, Vol. 3 of 4, by Helena Petrovna Blavatsky 56880 [Subtitle: Third Edition] No Posting 56879 First love and other stories, by Iv�n Turg�nieff 56878
Now I have to search it with etext no, author name and title..
Like If I search by an etext no: like etext 56900: It should return
Aspects of plant life; with special reference to the British flora, 56900
Well I am new to shell scripting. And I can only read the file. With this:
#!/bin/sh read -p 'string to search ' searchstring grep --color searchstring GUTINDEX.ALL | #condition
I don't know what kind of condition I should use to search by author name or etext no....