[root@zou ~]# ls -1 /dev/sd[e-z]|while read disk; do echo "$disk: `smartctl -a $disk|grep Reallocated_Sector_Ct|awk '{ print $10 }'`" ; done /dev/sde: 0 /dev/sdf: 1 /dev/sdg: 3 /dev/sdh: 1 /dev/sdi: 1 /dev/sdj: 5 /dev/sdk: 1 /dev/sdl: 1 /dev/sdm: 6 /dev/sdn: 0 /dev/sdo: 0 /dev/sdp: 0 /dev/sdq: 2 /dev/sdr: 4 /dev/sds: 0 /dev/sdt: 0 /dev/sdu: 2 /dev/sdv: 46 /dev/sdw: 35 /dev/sdx: 0 /dev/sdy: 0 /dev/sdz: 15