Use printf
em vez de echo
:
$ cat 442817.sh
#!/bin/bash
numbers=(120,900 1160,001 80,730 600,165 6,310 1111,203)
for n in "${numbers[@]}"; do
printf "%10s\n" "$n"
done
$ ./442817.sh
120,900
1160,001
80,730
600,165
6,310
1111,203