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TL;DR

• Create 5GB FreeBSD image.
• Install FreeBSD on xhyve.
• Mount host directory.

Requisites

• OSX
• Homebrew
• xhyve

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• ls
• ps
• pgrep
• strace - used to trace system (kernel) calls
• ltrace - used to trace library (C)
• /proc filesystem - lots of information
• /proc/
• /proc//fd
• lsof - list of open files including network
• gdb - briefly

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(gdb) bt
#0  0x00000001002400ab in hv_vcpu_run () from /System/Library/Frameworks/Hypervisor.framework/Versions/A/Hypervisor
#1  0x00000001000054d9 in vmx_run ()
#2  0x0000000100023b78 in vcpu_thread ()
#3  0x00007fff954ed99d in _pthread_body () from /usr/lib/system/libsystem_pthread.dylib
#4  0x00007fff954ed91a in _pthread_start () from /usr/lib/system/libsystem_pthread.dylib
#5  0x00007fff954eb351 in thread_start () from /usr/lib/system/libsystem_pthread.dylib
#6  0x0000000000000000 in ?? ()

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Intro

TCL-Expect scripts are an amazingly easy way to script out laborious tasks in the shell when you need to be interactive with the console. Think of them as a "macro" or way to programmaticly step through a process you would run by hand. They are similar to shell scripts but utilize the .tcl extension and a different #! call.

Setup Your Script

The first step, similar to writing a bash script, is to tell the script what it's executing under. For expect we use the following:

#!/usr/bin/expect

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#!/usr/bin/env expect

spawn "./hyperkitrun.sh"
set pid [exp_pid]
expect "tc@box:~$"
send "sudo halt\r\n";
expect {
  timeout {exec kill -9 $pid; exit 1}
  "reboot: System halted"
}

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• CV Dazzle
• MakeUp Tutorial HOW TO HIDE FROM CAMERAS
• Facial recognition defense
• @adamhrv
• OpenCV demo
• OpenCV and tensorflow

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-Usage: xhyve [-behuwxMACHPWY] [-c vcpus] [-g <gdb port>] [-l <lpc>]
-             [-m mem] [-p vcpu:hostcpu] [-s <pci>] [-U uuid] -f <fw>
+Usage: com.docker.hyperkit [-behuwxMACHPWY] [-c vcpus] [-F <pidfile>] [-g <gdb port>] [-l <lpc>]
+                           [-m mem] [-p vcpu:hostcpu] [-s <pci>] [-U uuid] -f <fw>
        -A: create ACPI tables
        -c: # cpus (default 1)
        -C: include guest memory in core file
        -e: exit on unhandled I/O access
        -f: firmware
+       -F: pidfile

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Availability	Uptime
90.0%	36 day 12 hours
95.0%	18 days, 6 hours
99.0%	87 hours, 36 minutes
99.50%	43 hours, 48 minutes
99.90%	8 hours, 48 minutes
99.99%	52 minutes, 33 seconds
99.999%	5 minutes, 15 seconds
99.9999%	32 seconds

pnasrat

what is a shell?

Shell is a programming environment that terminal runs. it's a text based GUI for interacting with your system.

what is shell good for?

shell can give you information about your system, allows you to modify and run programs. let's try something

say "hello pris"

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./Contents/_CodeSignature/CodeResources
./Contents/Frameworks/HockeySDK.framework/Versions/A/_CodeSignature/CodeResources
./Contents/Frameworks/HockeySDK.framework/Versions/A/HockeySDK
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/BITCrashReportUI.nib
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/BITFeedbackWindowController.nib
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/de.lproj/HockeySDK.strings
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/en.lproj/HockeySDK.strings
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/fi.lproj/HockeySDK.strings
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/fr.lproj/HockeySDK.strings
./Contents/Frameworks/HockeySDK.framework/Versions/A/Resources/Info.plist