The following are examples of sh_lines.d.

This is a simple script to count Bourne shell line execution. Here it traces an
example program, Code/Shell/func_slow.sh.

   # sh_lines.d 
   Tracing... Hit Ctrl-C to end.
   ^C
   
                                FILE:LINE        COUNT
                        func_slow.sh:5               1
                        func_slow.sh:6               1
                        func_slow.sh:15              1
                        func_slow.sh:16              1
                        func_slow.sh:21              1
                        func_slow.sh:26              1
                        func_slow.sh:27              1
                        func_slow.sh:32              1
                        func_slow.sh:35              1
                        func_slow.sh:30            100
                        func_slow.sh:28            101
                        func_slow.sh:19            200
                        func_slow.sh:17            201
                        func_slow.sh:9             300
                        func_slow.sh:7             301
                        func_slow.sh:1             600

The most frequently executed line was line 1 of func_slow.sh - which is actually
line 1 of func_slow.sh subshells (command substitution, ` `). Apart from
this slight confusion, the rest of the output should make sense (and most
scripts only call one line in command substitution anyway).