IBM P系列小型机故障的基本定位(6)

r -repeats last command

rm -i ******* -remove a file & will prompt you if you are sure rmdev -l XXXXX -removes a device and defines it to data base rmdev -l XXXXX -d -removes a device and deletes it from data base set -o vi -sets up to veiw cammands that have been run :wq -write(save) and quit file

Esc + k -used with SET command to list last command k,l -k=list next command ran, l=steps you thru command I -use with SET command inserts characters j -steps you backwards

cw -cw=removes a word,just type in new word (use with Esc)

a,x,r -a=added text, x=delete text, r=replace text(r+letter) R -lets you type over letters or words smit ***** -(*****= tape,disk,tty,etc.fastpath) su -stands for switch user,(NOT super user) su -switches to root id or prompts you for password su XXXXXX -switches to XXXXXXs id

tar -cvf /dev/rmtX /etc -will copy /etc to a tape drive tar -tvf /dev/rmtX -will read a tape drive tctl -f /dev/rmtX rewoffl -rewind & eject tape

tctl -f /dev/rmtX.1 fsf 3 -forward advances a tape to be read by TAR tctl -F -list avail commands(-F flag is not correct) tctl retension -retensions tape in tape drive

& -put any command in background with process ID

uptime -how long since last IPL and how many users on system vmstat # # -reports virtual memory statistics and more iostat # # -reports CPU,disk & cdrom statistics

use with vm & iostat -1st #(how many sec to repeat), 2nd #(how many times) who -shows users on system

who am i -shows user id on your terminal & tty number USE the following with other commands. ---------------------------------------------------

>/tmp/****.1 -creates a file (used with lsXXX command) >/dev/lp# -redirectes output to a printer(use with a comd) |grep -is useful to search for text in a file.

|pg -use after any command to view one page at a time | -pipe sign - Takes the output of one command and feeds it to the input of another. > -redirect sign or greater than sign / -slash sign -back slash sign

>> -double redirect will add text to end of file & -put any command in background with process ID

MUST unmount file system 1st to run fsck & dfsck/only use with a problem ---------------------------------------------------------------------------------------------- fsck XXXXXXX -will check a file system for errors & prompt dfsck /XXXX /XXXX -will check 2 different file sys at the same time FOLLOWING command lines will delete a group of devices as a group, the #, sign is the hdisk#s that you want to delete.(this is an exampe.)

-------------------------------------------------------------------------------------------------- for disk in # # # # -this line and the next 3 line work together do -the prompt will be > (REMEMBER to hit enter)

rmdev -l hdisk# {disk} -d -the prompt will be > (brackets around disk change) done -the prompt will be > (on a printout. change to -) SSA RELATED COMMANDS

-----------------------------------------

lsattr -El ssaX -list attributes of SSA adapters lscfg -vl ssaX -list VPD of SSA adapters lsdev -C | grep SSA -list all SSA devices lslpp -L | grep SSA -list SSA device drivers maymap -ap -maymap display of SSA loop maymap -alph -maymap display of SSA loop lscfg -vl pdisk* -list VPD of pdisks

ssaxlate -l hdiskX -list hdisk to pdisk assignment ssaxlate -l pdiskX -list pdisk to hdisk assignment ssa_rescheck -l hdiskX -show hdisk reservation status

FOLLOWING CMDS LIST, COPY, AND RESTORE FOR cpio,tar,dd,backup,dos: NOTE: The fd0 is just a dev. so you may use any media you desire. ----------------------------------------------------------------------------------- LIST COPY ------ --------

cpio -itv < /dev/fd0 ls /tmp/fn | cpio -ov > /dev/fd0 tar -tvf /dev/fd0 tar -cvf /dev/fd0 fn dd li -l | dd dd if=fn of=/dev/fd0

restore -Tf /dev/fd0 backup -0 -uf /dev/fd0 fn By INODE restore -Tf /dev/fd0 find / -print | backup -i -f/dev/fd0 By NAME dosdir doswrite -a (AIX fn) (fn.ext) TO RESTORE ------------------- cpio -iv fn < /dev/fd0 tar -xvf /dev/fd0 dd of=/dev/fd0 if=fn

restore -xvf /dev/fd0 fn BY NAME/INODE, restore understands unless special

flags were used.

dosread -a (fn.ext) (AIX fn) TO DOCUMENT THE SYSTEM ------------------------------------------- lscfg -v > /dev/lpx -to list sys config/VPD lsuser -f ALL > /dev/lpX -to list users lsdev -Cc tty -H -to list all ttys lsdev -Cc lp -H -to list all lps

lsattr -El ttyX > /dev/lpX -to list ttyX parameters (do for each tty) lsattr -El lpX > /dev/lpX -to list lpX parameters (do for each lp) lpstat > /dev/lpX -to list queues lsfs > /dev/lpx -to list filesystems lspv > /dev/lpx -to list hard drives

lspv hdiskx -to list hard drive config (do for each drive) lspv -l hdiskx -to list files on drive lsvg rootvg -to list rootvg data plus printout of or save to diskette: ------------------------------------------ /etc/inittab /etc/objrepos/Cu* /etc/passwd /etc/filesystems /etc/security/passwd /etc/hosts /sbin/rc.boot (完)