quilico@cecom-2.arpa (Grace Quilico) (11/25/86)
Thanks to everyone who responded to my plea for help with the correct
syntax to use for sed in order to interpret carriage-control characters.
Many who responded asked if I was typing the commands directly into the
shell - I was using a file containing the sed commands (e.g., as in
sed -f sed.cmds testfile > sed.out). Another problem I was having was
that I was not processing the lines beginning with a space in column 1
first - this caused problems (e.g., change the line beginning with a
zero in column 1; now it begins with a space; now process that same line
(incorrectly) as if the space were being used for carriage control).
Anyway! My shell script looked like this:
cat > sed.cmds <<EOF
s/^1/^L/ A one in col. 1, used for form feed (Note:
use a real <CTRL-L>, not ^L)
/^ /{ A space in col. 1, used for space (remove it)
s/ //
}
/^0/{ A zero in col. 1, used for double-spacing
s/0//
i\\ The following line inserts a newline character
}
/^-/{ A dash in column 1, used for triple-spacing
s/-//
i\\ The following lines insert 2 newline characters
}
EOF
sed -f sed.cmds testfile > sed.out
rm -f sed.cmds
Again, thanks to all who responded!
Grace Quilico
Technical Liaison
<quilico@cecom-2.arpa>
AV 995-2275
Comm: (201) 544-2275