Unix Tools

wc :

Stands for word count, wc displays a count of lines, words, and characters in a file.

head:

Head gives the first n lines from the given files.

tail:

Tail gives the first n lines from the given files.

uniq:

Filters out the adjacent repeated lines in a file.

cut :

Filters and gives the asked columns in given file.

sort:

Sorts the lines in a file according to given options: -r for reverse; -n for numeric sort. without options sort default by alphabet.

reduceSpaces:

Reduces more than one occurrences of blank spaces into one. Takes a input file and writes into another file.