You lost me. No numbers are being changed. Why do you want to echo the original number and echo the original number plus the word range?

If you want to use sed instead of awk for this, try:

Code:

sed -e 's/^ *[1-9] *$/& range/' -e 's/^ *1[0-9] *$/& range/' -e 's/^ *2[0-5] *$/& range/' file

Note that using:

Code:

sed 's/^ *[1-9][0-5]\{0,1\} /&range/' file

will not match any line that does not have a trailing space, and, for lines that do have a trailing space: