What is the use of format specifier %x ?
What is the use of numeric function cos ?
What is the use of numeric function sqrt ?
what are divisions main frems
What is the use of format specifier %x ?
What is the use of format specifier %f ?
What is the use of sequence <Any other character> ?
What is the use of format specifier %c ?
What is the use of sequence xdd ?
What is the use of RSTART, RLENGTH and match ?
What is the use of sequence ddd ?
Write a command delete all line except first line?
What is the use of ERRNO?