I'm trying to write an AWK script that would check if there are any prime numbers in a file and print them. Here is my code: #!/bin/awk -f function is_prime(n) { if (n <= 1) return 0; if (n ==…
Using gsub(), I want to replace "nn" to "" in this text: mystring<-"People Storm Seonul Airport as Citizens Leave\n\nCHOI JEONGHO\n\nSEOUL, South Korea, Jan. 31" But, when I ran gsub("[r\n]", " ", mystring), it deletes all n in the text. The…
I have long lists of strings such as this machine readable example: A <- list(c("Biology","Cell Biology","Art","Humanities, Multidisciplinary; Psychology, Experimental","Astronomy & Astrophysics; Physics, Particles & Fields","Economics; Mathematics, Interdisciplinary Applications; Social Sciences, Mathematical Methods","Geriatrics & Gerontology","Gerontology","Management","Operations Research & Management Science","Computer Science, Artificial…