Open main menu

Changes

4,468 bytes added ,  12:25, 17 March 2016
Initial draft
== Client Engagement and Project Management Process ==
{{@todo}} {{CompanyName}} has a detailed process for engagements that we will be publishing shortly.

== System ==
On a linux system, you can use the <code>ps</code> command to find out about the processes running on the computer.

A favorite incantation is the <code>ps axjf</code> command to show the process tree. Helpful to see children with their parents.

In that tree output, it's easy to see the Process ID (PID) and the Parent Process ID (PPID). Using the PID, you can tell <code>ps</code> to show information only about that process: e.g. <code>ps -p 123</code> Or, if you know the name of the executable you're interested in, then you can specify it that way: e.g. <code>ps -C java</code>

Sometimes a process is extremely long, and you can't see the whole picture. With the <code>w</code> option, you get a 'wide' readout. Repeat the option (<code>ww</code>) to get unlimited width in the readout. And, the <code>f</code> option shows a "full-format listing". So, for example, when you launch a java app like [[NetBeans]] (assuming you find it's <code>pid</code> to be 12657 in this example), and issue <code>ps -p12657 wwf</code>, you'll get something like this:
<pre>
PID TTY STAT TIME COMMAND
12657 ? Sl 3:00 /usr/lib/jvm/java-8-oracle/bin/java -Djdk.home=/usr/lib/jvm/java-8-oracle -classpath /home/greg/netbeans-8.0.2/platform/lib/boot.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-modules.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-util.jar:/home/greg/netbeans-8.0.2/platform/lib/org-openide-util-lookup.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/boot_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-modules_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_ja.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util-lookup_zh_CN.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_pt_BR.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_ru.jar:/home/greg/netbeans-8.0.2/platform/lib/locale/org-openide-util_zh_CN.jar:/usr/lib/jvm/java-8-oracle/lib/dt.jar:/usr/lib/jvm/java-8-oracle/lib/tools.jar -Dnetbeans.default_userdir_root=/home/greg/.netbeans -Dnetbeans.running.environment=gnome -Dnetbeans.dirs=/home/greg/netbeans-8.0.2/nb:/home/greg/netbeans-8.0.2/ergonomics:/home/greg/netbeans-8.0.2/ide:/home/greg/netbeans-8.0.2/extide:/home/greg/netbeans-8.0.2/java:/home/greg/netbeans-8.0.2/apisupport:/home/greg/netbeans-8.0.2/webcommon:/home/greg/netbeans-8.0.2/websvccommon:/home/greg/netbeans-8.0.2/enterprise:/home/greg/netbeans-8.0.2/mobility:/home/greg/netbeans-8.0.2/profiler:/home/greg/netbeans-8.0.2/python:/home/greg/netbeans-8.0.2/php:/home/greg/netbeans-8.0.2/identity:/home/greg/netbeans-8.0.2/harness:/home/greg/netbeans-8.0.2/cnd:/home/greg/netbeans-8.0.2/dlight:/home/greg/netbeans-8.0.2/groovy:/home/greg/netbeans-8.0.2/extra:/home/greg/netbeans-8.0.2/javacard:/home/greg/netbeans-8.0.2/javafx: -Dnetbeans.home=/home/greg/netbeans-8.0.2/platform -Dnetbeans.importclass=org.netbeans.upgrade.AutoUpgrade -Dnetbeans.accept_license_class=org.netbeans.license.AcceptLicense -Xmx1024m -client -Xss2m -Xms32m -XX:PermSize=32m -Dapple.laf.useScreenMenuBar=true -Dapple.awt.graphics.UseQuartz=true -Dsun.java2d.noddraw=true -Dsun.java2d.dpiaware=true -Dsun.zip.disableMemoryMapping=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/home/greg/.netbeans/8.0.2/var/log/heapdump.hprof org.netbeans.Main --cachedir /home/greg/.cache/netbeans/8.0.2 --userdir /home/greg/.netbeans/8.0.2 --branding nb --laf Metal
</pre>

If you use <code>-F</code> (which implies <code>f</code>), you'll get a few more columns in the output (UID, PPID, C, SZ, RSS, PSR, STIME)


[[Category:Company]] [[Category:System Administration]]
4,558

edits