github.com/benhoyt/goawk@v1.8.1/testdata/gawk/widesub2.awk (about)

     1  BEGIN {
     2  	Value = "abc"
     3  
     4  	print "Before <" Value "> ", index( Value, "bc" )
     5  
     6  	sub( /bc/, "bbc", Value )
     7  
     8  	print "After  <" Value ">", index( Value, "bc" )
     9  }