RE: [CentOS] script help

I run it but it has error.

sed 's/^dir-192.168/dir-10.0/'` sed: read error on dir-192.168.0.31: Is a directory

Was there an problem with Frank's response from earlier?

rename 192.168 10.0 dir*

It is a nice simple solution. You don't have to loop, or use extra commands, just copy and paste that one command to your machine, and all directories will be renamed. I just did it on 1000 directories, and it took 0.052 seconds:

[mike@test-box test]$ ls -ld dir-192.168.0.* | wc -l 1000 [mike@test-box test]$ time rename 192.168 10.0 dir*

real 0m0.052s user 0m0.012s sys 0m0.040s [mike@test-box test]$ ls -ld dir-10.0.0.* | wc -l 1000

Mike