head -10 /dev/urandom | sha512sum | cut -b 1-30
cat
tac
more
less
tail
mtail
echo
stdin
tr
column
paste
truncate
logrotate
xzcat
pv
progress
sort
ncat
virt-cat
awk
join
col
fold
tee
sponge
nfs-cat
journalctl, ccat, icat, EOF
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