The following list contains some common AIX commands.
• lsps –a (list paging space)
• lsattr –El mem0 (list current physical memory)
• extendlv hd6 16 (doubled paging space from 512MB to 1024MB)
(only use with IBM direction)
• smit lsmksysb (list files on a tape from a mksysb)
• lsdev –Cc disk (shows all disk drives)
• lscfg –vl hdisk1 (shows info on individual disk drives, s/n, p/n, etc…)
• lspv (shows disks installed on system)
• df –k (shows file system size information)
• lp filename (prints file to network printer)
• lpstat (shows print jobs)
• cancel # (cancels print job by #, found with lpstat)
• enq –U (restarts print que if status shows it is down–must be root)
• enq –Q prtx -#xxx (redirects a print job to another print que)
• ps –ef (shows current system processes)
• errpt –a (shows system error report including power outages)
• errclear 0 (completely clears the system errlog viewed with errpt –a)
• errclear –N sysplanar0 0
(clears only select items specified by the resource name, ex: sysplanar0)
• diag (system diagnostics, use the advanced diagnostics section; This helps determine the exact cause of a problem like sysplana0, queries system errlog for info.)
• sort –o list list (stores the sorted output of list back into list)
• sort –u list (sorts and eliminates duplicate lines)
• grep –vxf combinedlist masterlist (lists of #’s in masterlist not found in combinedlist)
ex: combinedlist=mulitple distribution lists containing SAs already downloaded to masterlist=list of all SA salons
This grep will list out the salons in the master list to which nothing has been downloaded.
• tail –f filename (shows last ten lines of a file and monitors for any updates)
• lsattr –El sys0 | grep maxuproc (shows maximum number of processes allowed for any one users; This can be increased by going into “smit system”.)
• lsvg –l rootvg (displays disk info including number of logical and physical partitions for each file system; PPs should be double that of LPs if disk is mirrored.)
• comm -12 file1 file2 (shows only what lines are in both file1 and file2; Sort both files before running the command. The -12 suppress columns 1 and 2 and what is only in file1 and only in file2,)
• wc filename (lists number of lines, number of words, number of characters in file; useful for distribution lists; can use –c for characters, -w for words, or –l for lines [e.g., wc –l filename, etc] )
• df –Ik [shows filesystem disk space; total, used and free (no Inodes)]
• (in vi) :r filename (reads in the contents of a file)
• (in vi) :r !command (reads in the output of a command)
• (in vi) yy p (copy and paste) – yy = yank, p = paste below line, P = paste above line.
• (in vi) dd p (cut and paste) – dd = cut, p = paste below line, P = paste above line.
• Ksh –n filename (checks for syntax errors in kornshell programs)
• cfgmgr (command to get system to recognize new hardware; can be run while system is running; A system boot runs it 3 times.)
• cfgmgr –i /dev/cd0 [installs drivers from cd for new hardware (best method)]
• lscfg –vp|grep CL (shows current firmware version)
• instfix –i | grep –i aix (shows maintenance level for AIX)
• oslevel –r (shows operating system level with maintenance level)
• nslookup server name (shows the IP address of the server name as it is on the network’s DNS server via the RS6000’s /etc/resolv.conf file; If it cannot resolve the server name, either the “name server” is stopped on the RS6000 (no resolv.conf file present) or there is something wrong with the DNS.)
• /etc/netsvc.conf file containing hosts=local,bind4 [This will force the RS6000 to first use the /etc/hosts file and then the DNS if it cannot find it in /etc/hosts. Otherwise, it will check in the DNS only (if name server is started on the RS6000) and never the hosts file. ???]
• lssrc –g nfs (use to check if nfs service is currently running)
• stopsrc –g nfs [use to stop nfs service – (change rcnfs from “wait” to off in /etc/inittab to prevent it from starting during boo)]
