use fgrep for counting ".pagespeed.", rather than grep with backslashed dot, which matches too much
use fgrep for counting ".pagespeed.", rather than grep with backslashed dot, which matches too much

wanrui/ngx_pagespeed,0x0mar/ngx_pagespeed,digideskio/ngx_pagespeed,0x0mar/ngx_pagespeed,digideskio/ngx_pagespeed,pagespeed/ngx_pagespeed,wanrui/ngx_pagespeed,pagespeed/ngx_pagespeed