SCO 6 (RE: FW: The grand finale)

[Bob Stockler]

Ken Brody wrote (on Fri, Nov 11, 2005 at 10:07:15AM -0500):

| However, if your script doesn't start with "#!/bin/sh" (and, honestly,
| how many of you always put the shell there?), and it depends on some
| Bourne-specific behavior which changes in Korn, you're SOL unless you
| change your script to either work under Korn, or add the "#!/bin/sh".

I, for one, do.  For those who don't, this little
shell script will make "#!/bin/sh" the first line
in all of the scripts given to it as arguments on
the command line, editing them in place:

  #!/bin/ksh
  for FILE in $@
  do awk -v FILE="$FILE" '
    NR==1 { if ( $0 !~ /#!\/bin\/sh/ ) line[++n] = "#!/bin/sh" }
    { line[++n] = $0 }
    END { for (i=1;i<=n;i++) print line[i] >FILE }' $FILE
  done

Bob

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