Shell Programming and Scripting

for i in `seq 1 55`; do [ -s file.$i ] && rm file.$i || echo "file.$i not present";done

touch ${fnom}.{1..20}
mv ${fnom} ${fnom.1}

mv ${fnom}.20 ${fnom}.21
mv ${fnom}.19 ${fnom}.20
mv ${fnom}.18 ${fnom}.19
mv ${fnom}.17 ${fnom}.18
mv ${fnom}.16 ${fnom}.17
mv ${fnom}.15 ${fnom}.16
mv ${fnom}.14 ${fnom}.15
mv ${fnom}.13 ${fnom}.14
mv ${fnom}.12 ${fnom}.13
mv ${fnom}.11 ${fnom}.12
mv ${fnom}.10 ${fnom}.11
mv ${fnom}.9 ${fnom}.10
mv ${fnom}.8 ${fnom}.9
mv ${fnom}.7 ${fnom}.8
mv ${fnom}.6 ${fnom}.7
mv ${fnom}.5 ${fnom}.6
mv ${fnom}.4 ${fnom}.5
mv ${fnom}.3 ${fnom}.4
mv ${fnom}.2 ${fnom}.3
mv ${fnom}.1 ${fnom}.2

echo "COMPLETE"

 line 28: ${fnom.1}: bad substitution
mv: cannot stat `foo.1': No such file or directory

for i in {1..10}
do
  echo "$i"
done