search string in text file

[nuttynibbles]

hi, i need to search strings in text file..

the string to be searched are in an array:
string = array('2312213','6568676', '...............');

so how can i read the text file n for each line, find those string in the array?

[laserlight]

It could be as simple as using [man]file/man with [man]strpos/man.