What is the use of numeric function cos ?
What is the use of sequence xdd ?
What is the use of format specifier %o ?
What is NR in AWK?
What is the use of RSTART, RLENGTH and match ?
What is the use of FNR?
What is the use of numeric function atan2?
What is the use of FIELDWIDTHS?
What is the use of systime function?
What is the use of string function tolower(string)?
What is NF in AWK?
how to run awk command specified in a file?
Write a command to print zero byte size files?