Comandos

  • pfiles
    Display the process current open files
  • df -k
    Displays number of free disk blocks and files per file system
  • snoop
    Capture network packages.

    Eg.: To capture from interface eri1 from/to IP 10.9.29.186 and 172.30.61.35 port 20993 and store the packages on a file named file.cap:

    snoop -o filecap -d eri1 10.9.29.186 172.30.61.35 port 20993

    To read the captured file:
    snoop -i file.cap -v
              or
    snoop -i file.cap -v port 20993
  • Ethereal
    Capture network packages
    tethereal.real –i<devide> -R<filter>  -w<output file name>

    Eg.:
    tethereal.real -ibge0 -R»sccp»  -w5.cap
  • tshark
    tshark -ibge0 -R»tcp.port==3869″ -S -wchargeid.cap -d tcp.port==3869,diameter

    Define a protocol by port
  • xntp
    Clock syncronization
    To stop/start the xntpd process, as root:
    /usr/lib/inet/xntpd stop
    /usr/lib/inet/xntpd start

 

 

  • /usr/platform/sun4u/sbin/prtdiag

    Shows system Configuration (Solaris)
  • iostat -E
    Show system devices such as disks, tapes, cd-rom
  • vmstat
    Reports virtual memory statistics
  • swap -s
    Shows the swap summary
  • /usr/bin/pagesize
    Get the memory page size

    Default 8192
  • df –g
    Get the Block size

    Default 8192
  • lsof –nl | grep TCP
             or
    1. cd /proc
    2. Execute pfiles * | egrep «^[0-9]|sockname» > /tmp/pfiles.txt

    Relates process with Sockets. Useful when you want to see which process is using which socket.
  • cfgadm
    Configuration Administration including disks
  • /etc/vfstab
    Disks and partitions
  • iostat
    To Map between device names and physical disks

    iostat -x | tail +3 | awk ‘{print $1}’ > /tmp/f0.txt.$$
    iostat -nx |tail +3 | awk ‘{print «/dev/dsk/»$11}’ > /tmp/f1.txt.$$
    paste -d= /tmp/f[01].txt.$$
    rm /tmp/f[01].txt.$$
  • prtconf
    Shows System configuration, you can also use it to  map between logical and physical disks
    ls -l /dev/dsk/c0t1d0s2
    replace sd with disk
    prtconf -vp | grep «pci@780/pci@0/pci@9/scsi@0/disk@3»
  • prstat
    Report active process statistics
  • prstat -c -t 10 5
    Prustat will list the top processes sorted by CPU, Memory, Disk or Network utilization
  • swap -l
    Swap Info
  • /usr/ucb/ps -auxwww
    Show all process arguments this is particulary usefull on Solaris which does not show all the arguments with the regular ps command
  • find ./* -type d -prune -exec du -ks {} \;
    Shows how much space is used per directory
  • find . -type d -print | sed -e ‘s;[^/]*/;|____;g;s;____|; |;g’
    Show a Directory Tree
  • find -cmin +180  -cmin -300 -ls
    The above find will retrieve all files that were modified after 180 minutes but less than 300 minutes

    300min >  <data> > 180min
  • dladm show-link
    Shows information about the data-link interface such as status (UP/DOWN), Speed, Duplex, MTU, VLAN Tagged and statistics of network traffic (historical and real-time).
  • ndd
    eg:

    ndd /dev/tcp \?
    ndd –get /dev/tcp \?

    Shows a list of kernel parameters for the driver

    ndd /dev/tcp tcp_time_wait_interval
    Retrieves the value of this specific parameter
  • du -sh *
    Shows disk usage only for one level.
  • tar –exclude=pictures/ -cvf 20140514_apache.tar *
    Executes tar with exclusions
  • Sar –r 2 5
    Get free memory
  • spray -c 100 -d 20 -l 1024 10.132.191.254
    Test the reliability of your packet sizes. This command can tell you whether the network is delaying packets or dropping packets.
  • dlstat -t -i 5
    eg: dlstat -t -r -i 1

    User interface and tool for obtaining statistics on traffic on datalinks.
  • ipadm
    Configure Network Tunables
  • ps -efo pid,user,lwp,pri,nice,vsz,rss,s,time,pcpu,fname | grep 2104
    Show thread info of a process
  • cat x.txt  >> net.out 2>&1
    Redirect sterr and stout 
  • kstat -p zfs:0:arcstats
    Shows how the zfs arc is used
  • mdb -k</span><br><br>
  • «The mdb utility  is  an  extensible  utility  for  low-level debugging  and editing of the live operating system, operating system crash dumps, user processes,  user  process  core dumps,  and object files.»
  • jrcmd

    jrcmd 18358 print_memusage > /export/home/oracle/memusage.20150505_1135.txt
    jrcmd 18358 start_flightrecording name=prodrecording  duration=180s settings=default.jfs filename=/var/oracle/xxxx/xxxx61/managed_uni_diameter_2/server222_1135.jfr
    jrcmd 18358  print_object_summary cutoff=100 > /export/home/oracle/objects.20150505_1135.txt
    jrcmd 11742 print_threads nativestack=true
    jrcmd 21168 print_object_summary cutoff=100

    For Java Debugging
  • /usr/sbin/psrinfo -pv
    Show physical processors and virtual
  • nc  (netstat)
    eg: nc -uvz 192.168.56.1 5090
    this check the udp port 5090

    Check if a port is open, TCP and UDP
  • sudo service sendmail restart
    Restart the mail service
  • sendmail -Ac -vvv –q
    Process the mail queue
  • /usr/local/apache2/bin/httpd -k restart
    Restart the HTTP process
  • ps -ef | grep $USER|awk ‘{print $2}’| xargs -I ‘{}’ sh -c ‘echo examining process {}; pfiles {}| grep 80’
                       or
    fuser 5556/tcp
                  or
    netstat -nlp | grep 12960
                  or
    netstat -tulpn

    Map process id with network port
  • cat server.log | grep «2015-02-04» | awk ‘{ print substr( $0, length($0) – 50, length($0) ) }’ 
  • cat server.log | perl -n -e ‘print substr $_,(length $_)-50,50;’
    Take the last 50 chars of a line
  • du -sh ./*
    i    Show the usage per directory