To setup email on Centos 6 run these commands yum -y install sendmail mailutils chkconfig –levels 235 sendmail on service sendmail restart To send a test email echo “test message” | mail -s “test subject” [email protected] Hosts File Modify your…
Add Current PATH to crontab Are you sick of your cron job failing because you are not explicitly listing the full path of everything in your shell script? Here’s how to fix it! Problem Your script works when you run…
How to create a bash script that deletes itself This script will delete itself via the shred command (secure deletion) when it exits #!/bin/bash # # Author: Steve Stonebraker # Date: August 20, 2013 # Name: shred_self.sh # Purpose: securely…
Problem You hate magnify.exe yet you are unable to delete magnify.exe Solution Take ownership of magnify.exe Move it to a new filename Celebrate i_hate_magnify.bat takeown /f “%windir%\system32\Magnify.exe” && icacls “%windir%\system32\Magnify.exe” /grant administrators:F echo “Took ownership of Magnify.exe!” move “%windir%\system32\Magnify.exe” “%windir%\system32\Magnify.exe.ihateyou”…
To fix the infinite scrolling issue with byobu and Ubuntu precise install it the following way: apt-get install byobu echo “at the next prompt select ‘screen’ as the backend” byobu-select-backend
Problem callee rc: co_e_server_exec_failure (0x80080005) When starting Virtualbox 4.2.10 on Windows 7 I was encountering this error Failed to create the VirtualBox COM object. The application will now terminate. Callee RC: CO_E_SERVER_EXEC_FAILURE (0x80080005) Cause The problem is the %HOME%/.VirtualBox directory…
Recently I needed to calculate the starting and ending memory addresses of an IOS application (in order to dump it). As a result i needed to figure out how to add two hex addresses. Here’s what I discovered. Basic Example…
Configuration To send mail from the command line in Ubuntu Precise sudo apt-get install mailutils If you mess up configuring or want to reconfigure dpkg-reconfigure mailutils Sending your test email Let’s send a test email! echo “test email body” |…
Problems I was facing two problems with my Logstash setup Logstash service constantly required manual restarts (no longer indexing, hanging process) Local log files were filling up my root partition Symptom Logstash failed to: Index events in the queue Trim…
Here’s my bash cheat sheet: Tests Combining [ condition ] && action; # action executes if condition is true. [ condition ] || action; # action executes if condition is false. Filesystem related tests We can test different filesystem related…
