Need a command to remove the last word in the first line of a file

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Depending of the purpose, if you are in a shell script and need to do this, you might:-

while read line
   cut_line="${line% *}"                        # Note that the space is the literal space in the input line
   echo "This is the value of \$cut_line \"${cut_line}\""
done < op.txt

Of course, you could do other things within the loop should you choose.

I hope that this helps,
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CAT(1)									FSF								    CAT(1)

cat - concatenate files and print on the standard output SYNOPSIS
Concatenate FILE(s), or standard input, to standard output. -A, --show-all equivalent to -vET -b, --number-nonblank number nonblank output lines -e equivalent to -vE -E, --show-ends display $ at end of each line -n, --number number all output lines -s, --squeeze-blank never more than one single blank line -t equivalent to -vT -T, --show-tabs display TAB characters as ^I -u (ignored) -v, --show-nonprinting use ^ and M- notation, except for LFD and TAB --help display this help and exit --version output version information and exit With no FILE, or when FILE is -, read standard input. AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman. REPORTING BUGS
Report bugs to <>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for cat is maintained as a Texinfo manual. If the info and cat programs are properly installed at your site, the command info cat should give you access to the complete manual. cat (coreutils) 4.5.3 February 2003 CAT(1)

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