“Suppress previous identity (and ignore errors)” way:
echo being >/dev/null | echo becoming
“Simple (and too obvious)” way:
echo being | sed 's/\(..\)/\1com/'
Sometimes becoming can be complex (and machine dependant):
echo being | sed "s/\(..\)/\1`evil 2>&1 | sed 's/............\(...\).*/\1/'`/"
Becoming can be even more complex (complexier?), and fail in various subtle and unpredicted ways:
echo being | sed "s/\(..\)/\1`\`echo $[RANDOM / 100]| tr 1-90 cptsdrameg\` 2>&1 | tail -1 | sed 's/...........\(...\).*/\1/'`/"
Slighty modified version, which will even “hang” sometimes(1 in 50.000), due to very small(10-9) reasons:
echo being | sed "s/\(..\)/\1`\`echo $[RANDOM / 10] | tr 0-9 etpsoairmn\` 2>&1 | tail -1 | sed 's/...........\(...\).*/\1/'`/"
