FAQ/shell

UserPreferences

1. how do I see which files take up the most space?
2. how do I set up CVS on a shell account?
3. can I delete old logfiles automatically?
4. which client should I use?
5. How do I back up my site?
6. how do I set up passwordless entry?

how do I see which files take up the most space?

The "du" command does what you want. For example:

%  cd ~
%  du -hL --max-depth=2

The diskspace meter in the control panel also includes the inbox for your mail, so the numbers might not match up.

how do I set up CVS on a shell account?

  cd ~
  mkdir cvs
  cvs -d ~/cvs init

Then from home:

  cvs -d:ext:USERNAME@XYZ.sabren.com:~/cvs {whatever cvs command}

can I delete old logfiles automatically?

Sure.

This command will show the old logfiles:

   find ~/log/ -ctime +6

Either of these should delete them:

   find ~/log/ -ctime +6 -exec rm {} \;
   find ~/log/ -ctime +6 | xargs rm

which client should I use?

It's up to you. On win32, I recommend putty from http://www.putty.nl/

For those who want more features then putty should try SecureCRT (http://www.vandyke.com/products/securecrt/index.html)

How do I back up my site?

 cd ~/web ; tar -czf sitename.tgz sitename

In that example you should replace 'sitename' with your domain name. If you have several subdomains, you could use:

cd ~/web ; tar -czf mysites.tgz ./*

If you would like to back up your database use:

 mysqldump -h db.sabren.com -u username -ppassword -d database | gzip > database.sql.gz

db.sabren.com, username, password should be replaced with your database server, username, and password as specified in your welcome letter. -p is needed before your password, so if your password is 123 it would be -p123. replace database with the name of your database (for example, if your username is "suzieq", then your database name will likely be "suzieq_db").

how do I set up passwordless entry?

# first create the key on your *home* machine:
% ssh-keygen -b 1024 -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/you/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/you/.ssh/id_rsa.
Your public key has been saved in /home/you/.ssh/id_rsa.pub.
The key fingerprint is:
f1:bb:b4:90:9b:49:ff:99:7a:a5:2e:b8:a4:e9:f3:2d you@home

# then upload the file to cornerhost:
% scp /home/you/.ssh/id_rsa.pub you@machine.sabren.com:

# then on the machine:
% ssh you@machine.sabren.com cat id_rsa.pub >> ~/.ssh/authorized_keys2

# make sure the authorized_keys2 file is readable only by you:
% ssh you@machine.sabren.com chmod 600 ~/.ssh/authorized_keys2

# you should now have passwordless entry. Try it:
% ssh you@machine.sabren.com  rm id_rsa.pub

See also: http://www.catb.org/~esr/ssh-installkeys/ssh-installkeys.html

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