Thread: Data Retrieval in UNIX

Suppose I have data in columns and rows say m rows and n columns. My requirement is to retrieve all values from the second column which is greater than 20. How can I do this in UNIX?

There are many ways to achieve the above result. One of the ways of doing this is to use the command awk in UNIX.

1.Awk in Unix is used for processing the rows and columns in a file. Awk has built in string functions and associative arrays. Awk supports most of the operators, conditional blocks, and loops available in C language.
2.Gawk is the GNU version of awk that is used on most Linux distributions. Gawk has all the capabilities of awk