Commands by darlanalves (1)

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a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

Print a row of 50 hyphens
This feels more intuitive to me.

Remote backups with tar over ssh
Execute it from the source host, where the source files you wish backup resides. With the minus '-' the tar command deliver the compressed output to the standar output and, trough over the ssh session to the remote host. On the other hand the backup host will be receive the stream and read it from the standar input sending it to the /path/to/backup/backupfile.tar.bz2

Ping all hosts on 192.168.1.0/24
Will report back IP address's of all hosts that are UP.

Get the size of all the directories in current directory

Remove orphaned dependencies on Arch
-Qdt Lists dependencies/packages which are no longer required by any packages -q Output only package name (not the version number) -R Remove package(s) Rest is self-explanatory. I just started out with Arch - so if there is any better/standard method to achieve the same - please suggest.

Write a bootable Linux .iso file directly to a USB-stick
Writes hybrid ISO directly to USB stick; replace /dev/sdb with USB device in question and the ISO image link with the link of your choice

Show errors in the kernel ring buffer
Much more useful then parsing syslog

Replace "space" char with "dot" char in current directory file names

Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously


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