From: Masahiro Yamada > Sent: 12 December 2020 16:55 > > This script was written in awk in spite of the file extension '.sh'. > Rewrite it as a shell script. ... > +# > +# Usage: $ ./scripts/ld-version.sh ld > +# > +# Print the linker version of `ld' in a 5 or 6-digit form > +# such as `23501' for GNU ld 2.35.1 etc. > + > +first_line="$($* --version | head -n 1)" > + > +if ! ( echo $first_line | grep -q "GNU ld"); then > + echo 0 > + exit 1 > +fi > + > +# Distributions may append an extra string like 2.35-15.fc33 > +# Take the part that consists of numbers and dots. > +VERSION=$(echo $first_line | sed 's/.* \([^ ]*\)$/\1/' | sed 's/^\(^[0-9.]*\).*/\1/') > +MAJOR=$(echo $VERSION | cut -d . -f 1) > +MINOR=$(echo $VERSION | cut -d . -f 2) > +PATCHLEVEL=$(echo $VERSION | cut -d . -f 3) > +printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL Hmmmm..... You've managed to convert an awk script into something that requires sh, head, grep, sed (twice), and cut (thrice). Plus (probably) a few sub-shells. It is quite ease to do it all in all in the shell. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
