unix Archives - WithoutInk

How To Move Files from One Server to Another With SCP SSH

May 3, 2009 By Matt 2 Comments

You can easily move files from one server to another with the SCP command.

How To Move Files from One Server to Another With SCP SSH

1. Open an SSH session in Terminal
2. Navigate to files/folder you wish to move
3. Optionally tar.gz the files/folder
4. In Terminal type: scp file.tar.gz [email protected]:/path/to/where/to/want/to/put/file.tar.gz

That will open an SSH tunnel from the local server to the remote server. Then it will initiate the transfer of the files fr you. This saves a nice bit of time, since you are not FTP’ing down and back up to the other location.

Optional Arguments

-p Preserves the modification and access times, as well as the permissions of the source-file in the destination-file
-q Do not display the progress bar
-r Recursive, so it copies the contents of the source-file (directory in this case) recursively
-v Displays debugging messages

Matt

Matt is a Systems Development Director for a multinational franchise. Matt has lived and worked in Hawaii, Chicago, South Florida and currently resides outside of Atlanta. He enjoys his hobbies including Technology, Gadgets/EDC, Fountain Pens, Wetshaving, Clocks, Antiques & Coffee. He even roasts his own coffee weekly.

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Basic SSH and UNIX Commands

April 7, 2009 By Matt Leave a Comment

Navigation Commands

ls this is the list command, it will list the content of the current directory
ls -alh this lists all files and folders + permissions and sizes in a readable format
cd this is the change directory command used in conjunection with a folder name like this: cd users/foo/ this would take to to the foo directory
cd .. this cd command will bring you back one directory in the path
cd ~ this cd command will take you to your home or top directory
mv this is the move command mv foo/ /path/to/new/loc

File Commands

touch will create a file touch example.txt
pico will open a file in a basic text editor pico example.txt
vi another basic txt editor vi example.txt
more will allow you to view the file without the ability of editing more example.txt
mkdir will create a directory mkdir foo creates a folder called foo
mkdir foo\otherfoo\morefoo this will make the directory foo with two sub directories
rm will delete a file rm example.txt
rm -rf will delete a folder and all subfolders beneath it rm -rf foo/
df gives physical disk usage report with % used
du lists all files and folder sizes – this takes awhile
du -sh this lists all the subfolders + sizes in a directory
wget archive a website wget -m http://whateverurl
ls -l | grep ^d lists all the sub directories
alias lsd=”ls -l | grep ^d” this creates the alias lsd of ls -l | grep ^d so you can use it more efficiently. You may have to sudo this.

Tar / Compression Commands

tar -cvzf file.tar.gz inputfile1 inputfile2

– this will combine two files together
tar -cvzf foo.tar.gz /path/to/folder/2/compress/ – this creates a tar.gz of a dir
tar tvf foo.tar – List all files in foo.tar.

Matt

withoutink.com

UNIX Command for Unpacking a Tar file to Different Directory

April 7, 2009 By Matt 1 Comment

1. Open Terminal
2. Type this command:
tar -xvzf /path/to/tar/file.tar.gz -C /path/to/dir/you/want/files/expanded

the -C in essence changes the file path for the unpacked files.

Matt

withoutink.com

UNIX Command for Unpacking a Tar file

April 7, 2009 By Matt Leave a Comment

1. Open Terminal
2. Type: tar -xvzf /path/to/file.tar.gz

( x= extract v=verbose z=(un)compress f=file )
This command will unpack the files to the root directory, replacing any old file that is within its packed structure.

Matt

withoutink.com

how to bypass the ipod touch space limit for apps

October 20, 2007 By Matt Leave a Comment

this is the method we used to bypass the space limit on the ipod for applications. it was originally posted on macrumors.com i give full credit to “sweadishviking” for this hack. I am just mirroring the data.

HOW-TO: Get around the application space limit your Touch:


NOTE: This guide assumes you have jailbreaked your iPod touch and installed the necessary Unix binaries, either manually or by using some sort of semi-automated/automated jailbreak method.
WARNING: Although this seems to work just as intended, it's not been tested for more than a number of hours, meaning that it's entirely possible it could somehow break in the future. Therefore, only do this at your own risk! (Although the risk of it bricking your iPod touch is very low, since you'll most likely keep SSH access even if screwing up)
1. SSH into your iPod touch using the SSH client of your choice; I recommend putty, which you can download at http://www.chiark.greenend.org.uk/~sgtatham/putty/ 
2. Move your applications folder to the /private/var folder by typing the following:

mv /Applications /private/var/Applications
3. Change directory to / by typing: cd /
4. Create a symbolic link to the Applications folders new location by typing:

ln -s /private/var/Applications Applications
5. Type the following to get a directory list of /, so we can make sure the symbolic link was created correctly by typing: ls -la
In the list that comes up, you should have an entry similar to this one:

lrwxr-xr-x  1 root admin   25 Oct 12 22:31 Applications -> /private/var/Applications
6. Alright, seems like it worked.. Now all you have to do is reboot your iPod touch! Do that now.
7. To further make sure it's working correctly for you, enter the Installer app and check the available space at the bottom. It should be higher than it was previously, as you've moved away all space-intensive apps. Try installing an app larger than 1MB (MobileChat for example) to see that the amount of available space stays the same.

8. Done! Install away!

Since putty isnt available for mac, we used terminal to get in:
ssh root@youripodsip
then enter your password

its important to note that this is done via a wifi connection, and you must be on the same wifi network for it to work. you can get your ipods ip by going into:

settings >> wifi >> then taping the blue arrow next to the connection.

Matt

withoutink.com