May you are missing the path in variable $PATH you will need to recover it try this command: PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin" On 4/17/06, redhat.zhou <redhat.zhou@xxxxxxxxx> wrote: > > i meet a problem ! who knows how to solve ? thanks!! > > > [oracle@oracle250 bdump]$ ps -ef|grep ora_ > -bash: ps: command not found > -bash: /bin/grep: Input/output error > [oracle@oracle250 bdump]$ ls > -bash: /bin/ls: Input/output error > [oracle@oracle250 bdump]$ ls > -bash: /bin/ls: Input/output error > [oracle@oracle250 bdump]$ cd .. > [oracle@oracle250 bjsw2]$ ls > -bash: /bin/ls: Input/output error > [oracle@oracle250 bjsw2]$ ll > -bash: /bin/ls: Input/output error > > -- > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjectunsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- ------------------------------- Best Regards Waleed Harbi Saudi Arabia -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjecthttps://www.redhat.com/mailman/listinfo/redhat-list
