compare: comparison utilities

compare

compare character data
returns list of differences.
arguments may be character strings, with lines delimited
by LF, or character matrices (trailing blanks ignored).

for Mac, tolerates lines delimited by CR.

result shows lines not matched, in form:
   n [l] text
where:
   n    =  0=left argument, 1=right argument
  [l]   =  line number
  text  =  text on line

omits comparison of swapped lines where
1e7 <: product of number of lines

fcompare

compare two text files
form: opt fcompare files
  opt is optional suffix
  files is 2 file names or prefixes
example:
  fcompare 'system\main\myutil.ijs \jbak\system\main\myutil.ijs'
  '\myutil.ijs' fcompare 'system\main \jbak\system\main'