a=0;for fle in *; do b=`for c in $(seq 0 $a); do echo -n " "; done`; mv "$fle" "$b"; a=$(($a+1)); done
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a=0;for fle in *; do b=`for c in $(seq 0 $a); do echo -n " "; done`; mv "$fle" "$b"; a=$(($a+1)); done