Re: [shell-script] Pq do erro ? while + ls + test

[Fabricio Lopes de Souza]

[root@localhost wrk]# old=$(ls -ltr | egrep 2005[0-9]{9} | head -n1 |
cut -d" " -f13)
[root@localhost wrk]# echo $old
2005112807535120051128_0001_rootnet1_eth0_ipv4det
[root@localhost wrk]# echo ${old:0:4}

[00[root@localhost wrk]# echo ${old:0:5}

[root@localhost wrk]# echo ${old:0:6}
2
[root@localhost wrk]# echo ${old:0:7}
20
[root@localhost wrk]# echo ${old:0:8}
200
[root@localhost wrk]# echo ${old:0:9}
2005
[root@localhost wrk]# echo ${old:0:10}
20051
[root@localhost wrk]# echo ${old:0:11}
200511
[root@localhost wrk]#

alguem me explica isso ? O_o