[unix-history] / usr / lib / learn / editor / L35.2c

#print
You can use '*' to look for a string of characters
from one of the character classes.  Suppose, for example,
we wanted a long string of either 'a' or 'b', followed
by 'x'.  Then we could write

  s/[ab]*x/.../

In this directory is a file named "table".
It has only one line.  On that line, replace all the digits
followed by a comma with the letters "too big".  For example,
"123,000" should become "too big,000".
Then rewrite the file and type "readY".
#create Ref
Heathrow  too big,159
#create table
Heathrow  17073,159
#user
#cmp table Ref
#log
#next
35.2d 5
Commit	Line	Data
fed84c9b TL	1	#print
	2	You can use '*' to look for a string of characters
	3	from one of the character classes. Suppose, for example,
	4	we wanted a long string of either 'a' or 'b', followed
	5	by 'x'. Then we could write
	6
	7	s/[ab]*x/.../
	8
	9	In this directory is a file named "table".
	10	It has only one line. On that line, replace all the digits
	11	followed by a comma with the letters "too big". For example,
	12	"123,000" should become "too big,000".
	13	Then rewrite the file and type "readY".
	14	#create Ref
	15	Heathrow too big,159
	16	#create table
	17	Heathrow 17073,159
	18	#user
	19	#cmp table Ref
	20	#log
	21	#next
	22	35.2d 5