Make 'g' grep recursively by default.

rc/bin/g

@@ -1,7 +1,13 @@
 #!/bin/rc 
 rfork e
+nl='
+'
 flags=()
+recurse=()
 while(! ~ $#* 1 && ~ $1 -* && ! ~ $1 --){
+	if(~ $1 '-n')
+		recurse=-n1
+	if not
 		flags=($flags $1);
 	shift 
 } 
@@ -14,7 +20,7 @@ case 0
 	exit usage 
 case 1 
 	pattern=$1
-         files=(`{ls *.[bcChlmsy] *.asm *.awk *.cc *.cgi *.cpp *.cs *.go *.goc *.java *.lx *.ms *.pl *.py *.rc *.tex *.xy >[2]/dev/null}) 
+	files=`$nl{walk -f $recurse | grep '\.([bcChlmsy]|asm|awk|cc|cgi|cpp|cs|go|goc|java|lx|ms|pl|py|rc|tex|xy)$' >[2]/dev/null}
 case * 
 	pattern=$1 
 	shift 

sys/man/1/grep

@@ -113,11 +113,16 @@ with
 .B -n
 (plus aditional flags, if provided)
 and forces tagging of output lines by file name. If no files
-are listed, it searches all files matching
+are listed, it recursively searches the current directory for
+all files matching
 .B *.b *.c *.C *.h *.l *.m *.s *.y
 .B *.asm *.cc *.cs *.lx *.cgi *.pl
 .B *.py *.tex *.ms *.java *.xy *.go
 .B *.goc *.cpp
+.PP
+The recursive search can be suppressed by passing g the
+.B -n
+flag.
 .SH SOURCE
 .B /sys/src/cmd/grep
 .br