October 25, 2009
This blog post deals with VPNC (
) : an alternative to Cisco’s linux version client. If you happy with cisco’s client and were able to install it successfully then you can skip the rest of the blog.
Most of the information can be found at original sources
Only issue you might face is installing yum prorities using yum. That is broken in CentOS 5.3 (atleast til I tried). So here are the steps involved.
1) Install Yum Prorities
Install prorities using rpm instead of yum.wget
rpm -ivh yum-priorities-1.1.16-13.el5.centos.noarch.rpm
2) Check if plugin is enabled (see
3) Update Proirities for repo files
4) Install rpm forgewget
rpm -K rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm
rpm -i rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm
5) Update prority for rpmforge repo filenano /etc/yum.repos.d/rpmforge.repo
6) Update yum to start using priorirites and rpmforge as source.yum check-update
7) install VPNCyum -y install vpnc
Now vpnc is installed. Follow
to know how to use it.
Task: Need to write a unix/linux shell script which moves Files from One Folder to Another Folder once a day (Say at midnight). Also set permissions for newly moved files accordingly.
Step 1: Write a Shell Script to do moving and set permissions
mv /home/a/* /home/b/
chown nobody:nobody /home/b/*
Here I want to move files from “/home/a/” to “/home/b” and set permissions to nobody so that PHP running on Apache can do work on them. I saved the script as “/home/myscript.sh”
Step 2: Make the script an Executable
$ chmod +x myscript.sh
Step 3: Run at mid night every day by adding to Cron Job
a) Edit Current Cronjob
$ crontab -e
Then add your script entry there (works same as VI editor.. use i to go to edit mode). I am actually setting at 11.59 PM..
59 23 * * * /home/myscript.sh
b) Save cron job by exiting (using Shift+zz)
c) Check to see cron job is set
$ crontab -l