Java™ Application Development on Linux - Dator

42Chapter 2An Embarrassment of Riches: EditorsHere are a few more substitution examples along with an explanationfor each..,$s/here/eternity/From here to the end of the file, replace here with eternity.27,$-5s/lost/found/From line 27 to the 5th line prior to the end of the file, replace lost withfound.s/here/now/Replace here with now, on the current line only.Each line that has a match will do the substitution on only the first occurrenceof the string. If you want to change all occurrences on those lines, youappend a g (for “global” substitution) to the end of the command. Considerthis snippet of Java:class tryout{int tryout;tryout(int startval) { // make a new tryouttryout = startval;} // tryout constructor// a tryout-like resettingpublic voidsetTryout(int toval) {tryout = toval;}// willfindtryoutinhere} // class tryout1,$s/tryout/sample/Works as expected except for line 5, where “tryout” appears as theconstructor name but also in the comment.1,$s/tryout/sample/gWorks better (note the trailing g). But neither command can deal with“Tryout” in the setTryout method name. That’s because of the uppercase“T”, which doesn’t match “tryout”.