[root@testvm1 etc]# du -hc *.conf
4.0K    asound.conf
4.0K    chrony.conf
4.0K    dracut.conf
....
4.0K    vconsole.conf
4.0K    yum.conf
104K    total

[root@testvm1 etc]# du -bc *.conf
55      asound.conf
1108    chrony.conf
1285    dracut.conf
....
41      vconsole.conf
970     yum.conf
32357   total