Here’s a handy alias for shredding files on CentOS
alias shred=’shred -v -n 1 -z -u’
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alias chkconfig=”chkconfig | perl -pe ‘use Term::ANSIColor; s/\bon\b/color(\”green\”).on.color(\”reset\”)/ige;’” or to permit passing an agrument: function chkconfig(){ /sbin/chkconfig $* | perl -pe ‘use Term::ANSIColor; s/\bon\b/color(“green”).on.color(“reset”)/ige;’ } nano syntax highlighting This article describes how to get syntax highlighting in the command line emacs editor “nano“ Ubuntu zcat /usr/share/doc/nano/examples/nanorc.sample.gz > ~/.nanorc sed -i ‘s|# include|include|g’ ~/.nanorc Centos/Redhat cp /usr/share/doc/nano-2.0.9/nanorc.sample ~/.nanorc sed -i ‘s|# include|include|g’ ~/.nanorc My Bash Prompt PS1=”\n\[\e[32;1m\][\[\e[37;1m\]\u@\h:\[\e[37;1m\]\w\[\e[32;1m\]]\$ \[\e[0m\]” Installation Modify ~/.bashrc and append this line PS1=”\n\[\e[32;1m\][\[\e[37;1m\]\u@\h:\[\e[37;1m\]\w\[\e[32;1m\]]\$ \[\e[0m\]” What it looks like 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 hosts file and add $HOSTNAME.local to prevent issues (in example below we are using hostname . . . → Read More: Setup Email on Centos 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 it from the console but fails in cron. Cause Your crontab doesn’t have the right . . . → Read More: Add Current PATH to crontab 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 self-deleting shell script # http://brakertech.com/self-deleting-bash-script currentscript=$0 # function that is called when the script exits . . . → Read More: self deleting bash script 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” pause 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 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 (0×80080005) Cause The problem is the %HOME%/.VirtualBox directory Solution To resolve the issue I followed these steps Killed any VirtualBox .exe files that were running Stopped any . . . → Read More: Failed to create virtual box COM object Resolved |
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