https://community.hpe.com/t5/operating-system-tru64-unix/grep-regular-expression-problem-slow-performance/m-p/3329888#M3801 Hi<BR /><BR />I had this problem in 5.0 after applying patchkits it solved the problem Wed, 14 Jul 2004 01:28:22 GMT Ravi_8 2004-07-14T01:28:22Z https://community.hpe.com/t5/operating-system-tru64-unix/grep-regular-expression-problem-slow-performance/m-p/3329887#M3800 Running OSF1 5.1 732<BR /><BR />Trying to match a double-quoted string using (extended) regular expressions. The string may contain escaped quotes (\") or other escaped characters.<BR />The ERE I'm using is<BR /><BR />grep -E '"([^\\\"]+|\\\\.)*"'<BR /><BR />This matches short strings like<BR />"abc"<BR />but performance degrades quickly with longer strings:<BR />"abc abc mmmmm mmmm mmm"<BR />does not terminate within a couple of minutes.<BR /><BR />The problem exhibits itself both in 'grep' and using 'regexec()' in a C program.<BR /><BR />The ERE works fine on Solaris and HPUX.<BR />Does anyone know of a workaround which avoids this problem, or know if it is fixed in a patch?<BR />Thanks in advance. Tue, 13 Jul 2004 07:44:22 GMT https://community.hpe.com/t5/operating-system-tru64-unix/grep-regular-expression-problem-slow-performance/m-p/3329887#M3800 Jim Wagner_2 2004-07-13T07:44:22Z https://community.hpe.com/t5/operating-system-tru64-unix/grep-regular-expression-problem-slow-performance/m-p/3329888#M3801 Hi<BR /><BR />I had this problem in 5.0 after applying patchkits it solved the problem Wed, 14 Jul 2004 01:28:22 GMT https://community.hpe.com/t5/operating-system-tru64-unix/grep-regular-expression-problem-slow-performance/m-p/3329888#M3801 Ravi_8 2004-07-14T01:28:22Z