l9.1a

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 1A 代码 · 共 34 行

#print
(Section 1.9 -- read 1.6-1.8 too.)
Write a program that removes trailing blanks
and tabs from each line of input, and deletes
entirely blank lines.  To make your job easier,
you can use the function getline; its source
is in getline.c.
Type ready when you are done.
#once #create Ref
  This  file  contains
some trailing     		
blanks 
and tabs


	
 	 
and some empty lines.
#once #create Ref1
  This  file  contains
some trailing
blanks
and tabs
and some empty lines.
#once cp %s/getline.c .
#user
a.out <Ref >test
#cmp test Ref1
#succeed
No answer yet - sorry.
#log
#next
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