https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172602#M718129 Assuming the standard C compiler shipped with 11.00, the function strstr(s1, s2) returns a point to the first occurance of s2 in s1. <BR /><BR />I left my K&amp;R at home today and the man page does not give any more detail.<BR /><BR />Does this use regular express matching or is exact char matching? Can I pass s2=".pk[bghs]$" to find the 4 possible patterns anchored at the end of the line?<BR /><BR />Thanks<BR />-Dave Fri, 23 Jan 2004 14:22:38 GMT Dave Johnson_1 2004-01-23T14:22:38Z https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172602#M718129 Assuming the standard C compiler shipped with 11.00, the function strstr(s1, s2) returns a point to the first occurance of s2 in s1. <BR /><BR />I left my K&amp;R at home today and the man page does not give any more detail.<BR /><BR />Does this use regular express matching or is exact char matching? Can I pass s2=".pk[bghs]$" to find the 4 possible patterns anchored at the end of the line?<BR /><BR />Thanks<BR />-Dave Fri, 23 Jan 2004 14:22:38 GMT https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172602#M718129 Dave Johnson_1 2004-01-23T14:22:38Z https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172603#M718130 No, strstr (or any of the string(3c)) functions do not do regular expression evaluation; however, regex() will do what you need. Man regex for details.<BR /> Fri, 23 Jan 2004 14:43:54 GMT https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172603#M718130 A. Clay Stephenson 2004-01-23T14:43:54Z https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172604#M718131 Does this use regular express matching? nope Fri, 23 Jan 2004 14:45:46 GMT https://community.hpe.com/t5/operating-system-hp-ux/standard-c-question/m-p/3172604#M718131 curt larson_1 2004-01-23T14:45:46Z