pkgr8

hii can anyone plz tell if there exist any libraries in C which helps in monitoring the data traffic of the system. want to write the code for it... thanks in advance

hello, i am writing my own shell and struck at implementing "help"....can any one help me .....plz just dont refer the man pages of linux plz elaborate also.... also plz some one tell me how to implement the background processing .....reply asaap its urgent thanks in advance

HELLO I Am writin my own shell in linux, and making use of execvp() for handling internal commands but it does not supports cd...plz help also if anyone can suggest some another way to handle internal calls except using system() thanks in advance :-)