Commands using top (20)

  • Triple monitoring in screen

    This command starts screen with 'htop', 'nethogs' and 'iotop' in split-screen. You have to have these three commands (of course) and specify the interface for nethogs - mine is wlan0, I could have acquired the interface from the default route extending the command but this way is simpler. htop is a wonderful top replacement with many interactive commands and configuration options. nethogs is a program which tells which processes are using the most bandwidth. iotop tells which processes are using the most I/O. The command creates a temporary "screenrc" file which it uses for doing the triple-monitoring. You can see several examples of screenrc files here: http://www.softpanorama.org/Utilities/Screen/screenrc_examples.shtml


    18
    tmpfile=$(mktemp) && echo -e 'startup_message off\nscreen -t top htop\nsplit\nfocus\nscreen -t nethogs nethogs wlan0\nsplit\nfocus\nscreen -t iotop iotop' > $tmpfile && sudo screen -c $tmpfile
    Patola · 2009-08-03 10:14:02 12
  • Use top to monitor only all processes with the same name fragment 'foo'

    top accecpts a comma separated list of PIDs.


    15
    top -p $(pgrep -d , foo)
    michelsberg · 2012-06-27 20:59:09 7
  • Use top to monitor only all processes with the same name fragment 'foo'

    pgrep foo may return several pids for process foobar footy01 etc. like this: 11427 12576 12577 sed puts "-p " in front and we pass a list to top: top -p 11427 -p 12576 -p 12577


    5
    top $(pgrep foo | sed 's|^|-p |g')
    michelsberg · 2012-06-14 15:13:00 4
  • count processes with status "D" uninterruptible sleep


    4
    top -b -n 1 | awk '{if (NR <=7) print; else if ($8 == "D") {print; count++} } END {print "Total status D: "count}'
    jcgam69 · 2009-02-19 21:14:46 15
  • Processes by CPU usage


    3
    top -b -n 1 | sed 1,6d
    mlsmaycon · 2012-03-01 13:27:55 4
  • Use top to monitor only all processes with the same name fragment 'foo'

    Like command 10870, but no need for sed


    3
    top '-p' $(pgrep -d ' -p ' foo)
    __ · 2012-06-27 18:32:03 7
  • Top Command in batch mode

    running top command in batch mode. it is usefull if you want to redirect the output in a file. Show Sample Output


    2
    top -b -n 1
    r00t4u · 2010-01-24 16:17:30 6
  • Shows cpu load in percent

    This version is precise and requires one second to collect statistics. Check sample output for a more generic version and also a remote computer invocation variant. It doesn't work with the busybox version of the 'top' command but can be adjusted Show Sample Output


    1
    top -bn2|awk -F, '/Cpu/{if (NR>4){print 100-gensub(/.([^ ]+).*/,"\\1","g",$4)}}'
    ichbins · 2014-04-18 17:48:05 6
  • Suspend, background, and foreground a process

    1. Start a process, such as 'top' command 2. # suspend process {ctrl-Z} 3. # background process bg 4. # list all backgrounded jobs jobs 5. # bring it back to foreground fg


    1
    top; ctrl-z; bg; jobs; fg
    djangofan · 2015-10-14 17:33:25 10
  • How many lines in your PHP project without comments

    An advanced possibility to count the lines of code like in #8394 Show Sample Output


    0
    find . -type f -name '*.php' | xargs cat | sed -re ':top /\/\*.*\*\// { s/\/\*.*\*\///g ; t top }; /\/\*/ { N ; b top }' | awk '$0 !~ /^[\t[:space:]]*($|(\/\/)|(#))/' | wc -l
    andrehgw · 2011-05-05 06:12:34 31
  • Monitor specific process (ie apache) using Top

    Show only specific process id's using Top Show Sample Output


    0
    top -p `pidof apache2 | awk '{gsub(/[ ]/,",");print}'`
    hbalagtas · 2011-07-28 20:13:36 4
  • Monitor especific process with top

    You can also use different process using comma: top -p `pgrep pidgin`, `pgrep python` but you have to make sure the process exists or you'll get an error Show Sample Output


    0
    top -p `pgrep pidgin`
    cesarbustios · 2011-11-23 20:35:53 4
  • Get Current CPU Usage

    Get the current cpu % usage on your system. Show Sample Output


    0
    top -n2 -d 0.5 | grep ^Cpu | sed 's/[[:alpha:]%]*//g' | awk 'NR == 2 {printf("%.2f\n",100-$5)}'
    wizzra · 2012-09-06 12:56:26 7
  • Resource Monitoring

    Monitoring system in one line : DISK : disk space MEM: memory ( mem , swap, Total) CPU : all information about cpu activity LOAD : load average Show Sample Output


    0
    echo "DISK:";df -Pl | grep -v "Filesystem" | awk '{print $5,$6}' ; echo "MEM:" ; free -mto | awk '{ print $1,$2,$3,$4 }'; echo "CPU:"; top -b -d1 -n1 | grep Cpu | awk '{print $2,$3,$4,$5,$6,$7,$8,$9}';echo "LOAD:"; cat /proc/loadavg
    injez · 2014-09-29 12:43:52 35
  • Use top to monitor only all processes with the same name fragment 'foo'

    This command greps the full name of processes. If you have processes with parameters(which you can see by pressing key 'c' in top) - this is the case


    0
    top -p $(pgrep -f -d , foo)
    sedpro · 2015-03-03 17:18:54 7
  • Display the top ten running processes - sorted by memory usage

    Display the top processes sorted by memory usage. This is mostly useful because it's easy to remember and can give me a quick 'top' view of a group of servers when used over pssh. (Though I'd recommend |head -10 to minimize the output). Show Sample Output


    0
    top -b -o +%MEM |head -17
    dak1n1 · 2016-03-16 22:14:34 12
  • Kill processes hogging up CPU (Flash after resume)

    I found Flash eating one of my CPUs after resume, the command above will help with that. For optional kicks you can put it into a script in /etc/pm/sleep.d/ (aspect in #swhack wrote this for me)


    -1
    top -bn 1 | awk '{if($1 ~ /^[0-9]+$/ && $9 > 97) {print $1;exit}}'|xargs kill
    chx · 2010-06-02 13:51:40 7
  • top

    usage: top -hv | -bcisSHM -d delay -n iterations [-u user | -U user] -p pid [,pid ...] Show Sample Output


    -2
    top
    atgf0127 · 2011-04-14 06:59:06 4
  • Show the number of current httpd processes

    Of course, the httpd can be replaced with any other process name Show Sample Output


    -4
    top -b -n 1 |grep httpd|wc -l
    dotanmazor · 2010-07-25 08:40:03 4
  • View process statistics in realtime

    A simple but effective replacement for ps aux. I used to waste my time running ps over and over; top is the way to go. It also allows complex sorting options. Press q to exit "nicely" (Ctrl + C is always an option, of course). Note that the list updates each second, resorting in the process; if you're trying to grab a specific PID, you might be better off with ps. htop Alternatively, htop is available, though it may not come pre-installed. htop is slightly more interactive than top and includes color coding, visuals, and a nice interface for selecting and then killing processes. (Thanks to bwoodacre for this great tool.) Show Sample Output


    -5
    top
    Zenexer · 2009-03-18 00:03:42 10

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Lists all listening ports together with the PID of the associated process
The PID will only be printed if you're holding a root equivalent ID.

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Cut/Copy brackets or parentheses on vim (in normal mode)
We have for example : func () { echo FOO echo BAR } Place the cursor under a bracket and press d + %. It will cut everything inside and the brackets. It let : func () You can copy text with y + %

Convert all files for iPhone with HandbrakeCLI

Find the package that installed a command

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Counting the source code's line numbers C/C++ Java
Count your source and header file's line numbers. This ignores blank lines, C++ style comments, single line C style comments. This will not ignore blank lines with tabs or multiline C style comments.

Tell Analytics to fuck itself.
See http://code.google.com/apis/analytics/docs/concepts/gaConceptsCookies.html if you are unclear about the Google Analytics cookie system. If Firefox is your daily browser, be a good Orwellian and run this command regularly. If you see, 'SQL error near line 1: database is locked', close Firefox and run again.

check open ports without netstat or lsof

list files recursively by size

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