Commands by octopus

Commands by octopus (9)

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Find MAC address of Active Eth connection
This is sample output - yours may be different.
-2

/sbin/ifconfig|grep -B 1 inet |head -1 | awk '{print $5}'

octopus · 2010-04-22 06:35:29 4
List all packages by installed size (Bytes) on rpm distros
This is sample output - yours may be different.
3

rpm -q -a --qf '%10{SIZE}\t%{NAME}\n' | sort -k1,1n

octopus · 2010-04-19 07:44:49 1
Extract title from HTML files

This command can be used to extract the title defined in HTML pages
This is sample output - yours may be different.
3

sed -n 's/.*<title>$.*$<\/title>.*/\1/ip;T;q' file.html

octopus · 2010-04-19 07:41:10 1
Legacy MacOS to Unix text convert using perl
This is sample output - yours may be different.
0

perl -i -pe 's/\r/\n/g' file

octopus · 2010-04-16 13:25:09 1
Combining text files into one file
This is sample output - yours may be different.
-16

ls | grep *.txt | while read file; do cat $file >> ./output.txt; done;

octopus · 2010-04-16 13:19:38 1
Run command from another user and return to current
This is sample output - yours may be different.
1

su - $user -c <command>

octopus · 2010-04-16 13:17:02 0
List all installed PERL modules by CPAN

This command will give you the detailed information about the installed perl modules i.e. installed path, Link type, version, files etc. Show Sample Output
This is sample output - yours may be different.
```
       Thu Jun 25 10:48:08 2009: "Module" IO::Dir::Recursive

       ?   "installed into: /usr/lib/perl5/site_perl/5.8.8"

       ?   "LINKTYPE: dynamic"

       ?   "VERSION: 0.03"

       ?   "EXE_FILES: "
```
3

perldoc perllocal

octopus · 2010-04-14 10:57:56 1
a2p converts awk scripts to perl programs
This is sample output - yours may be different.
0

a2p -F:

octopus · 2010-04-12 08:49:44 0
How to check network connection from one interface

This command only check the network connection from given eth. This is very useful if you are using more then one interface in your server or laptop. Show Sample Output
This is sample output - yours may be different.
```
PING any-fp.wa1.b.yahoo.com (69.147.125.65) from <IP> eth0: 56(84) bytes of data.
```
1

ping -I eth0 www.yahoo.com

octopus · 2010-04-12 06:25:07 0

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Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

show how many regex you use in your vim today

i want to count how many regex code i have used in vim in a long time so i make a directory in svn host and post record to this directory of course i dont want to post manually so i worte a script to do that and this is the core thing to do

List only the directories

This command would be useful when it is desirable to list only the directories. 'egrep' chooses only the lines that begin with 'd'.

Recursively remove directory with many files quickly

rsync'ing an empty directory over a directory to be deleted recursively is much faster than using rm -rf, for various reasons. Relevant only for directories with really a lot of files.

How many days until the end of the year

add all files not under version control to repository

This should handle whitespaces well and will not get confused if your filenames have "?" in them

Install pip with Proxy

Installs pip packages defining a proxy

Install an mpkg from the command line on OSX

Installing most OSX apps is just a matter of dropping it in /Applications, either GUI-wise or with cp -r. However, many packages are distributed in "mpkg" format, and those have to be installed with an installer. If you don't want to go to the trouble of firing up VNC to install an mpkg, you can use the "installer" command. This will install an application from a .mpkg it to /Applications system-wide. To install a program for just one user, replace "-target /" with "-target username".

Get a Bulleted List of SVN Commits By a User for a Specifc Day (Daily Work Log)

* Replace USERNAME with the desired svn username * Replace the first YYYY-MM-DD with the date you want to get the log (this starts at the midnight event that starts this date) * Replace the second YYYY-MM-DD with the date after you want to get the log (this will end the log scan on midnight of the previous day) Example, if I want the log for December 10, 2010, I would put {2010-12-10}:{2010-12-11}

check open ports without netstat or lsof

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