Linux / Unix Tips and Tricks

Here's the command that I use to synchronize a filesystem from one server to another: rsync -avx --numeric-ids --progress --delete 10.0.0.1:/mnt/sda1/ /mnt/sda1/ The -a option sets “archive mode”, which essentially turns on a number of rsync options that preserve...

Today I had to set the owner/group for a Veritas raw device. You can set it on Unix using chown, but the settings will be lost after a reboot. To properly set the ownership on a veritas raw device you need the following command: vxedit set user=username group =groupname...

Today I wanted to install a Perl module in my home directory. Here's how to do it:  (More)

Most Unix sysadmins are hardcore Command Line gurus. However, sometimes you may need to run a graphical application on Unix. The graphical environment on Unix is called the X Window System (or X or X11). Unlike most other graphical systems, X is designed to be used over the network. ...

Here's a perl oneliner that does text search & replace over multiple files. Make sure you create a backup before using it !   (More)

I had an issue with software which was complaining about the version of /usr/lib/libCstd.so.1 So I wanted to know to which package this particular file belongs, in order to see if there are any updates available for this package. Here's how to do it:   (More)

Suppose you want to copy a directory structure from one machine to the other. You could create an archive (using tar or cpio), copy over the archive and extract it. But there's a better way to do it by combining tar and ssh.   (More)

Len Kranendonk
Unix System Specialist.
Broad experience in web development and open source technologies.

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• Using rsync to synchronize a filesystem
• TT Assen 2009
• Solaris 10: Enable Samba for Windows File Sharing
• Changing Veritas device owner for raw device
• Perl: how to install a Perl module locally
• VMware Server: Managing virtual machines from the command line
• Setting your X environment
• Replacing text in multiple files
• Linux: How to extract a single file from a RPM package
• Solaris: Determinate to which package a file belongs

• Solaris [3]
• Unix [7]
• Linux [7]
• General [3]
• perl [2]
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