What is the use of numeric function log ?
What is NR in AWK?
What is the use of RSTART, RLENGTH and match ?
What is the use of ARGIND?
What are Regular Expressions in AWK?
What are Assignment Operators?
What is ORS in AWK?
What are System functions?
What is the use of string function asorti(string,[d])?
What is the use of sequence ?
Write a command delete all line except first line?
what are divisions main frems
How add a first record and last record to the current file in linux?