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About this user

Liam Clancy http://www.metafeather.net/

6 total

On This Page:

  1. 1 Download with cURL in a Loop Until Completed
  2. 2 Zero data on a Linux disk
  3. 3 Enable svn+ssh remote logins
  4. 4 Stop bell/beep in bash
  5. 5 Get packet information on OS X
  1. 6 Find and change a users uid

Download with cURL in a Loop Until Completed

to cli by metafeather on Feb 28, 2007
From Entropy.ch:

Here’s a little terminal command I use to repeatedly attempt to download a file. This is useful if the transfer aborts frequently or if the server is busy:

The while/do/done loop keeps calling curl, with pauses of 10 seconds. curl will keep returning a failure exit code, which is what keeps the while loop going if inverted with the ! (logical not) operator. The -C - flag tells curl to continue at the last byte position.

while ! curl -C - -O 'http://download.parallels.com/GA/Parallels%20Desktop%203186%20Mac%20en.dmg'; 
do sleep 10; 
done

Zero data on a Linux disk

to cli by metafeather on Feb 10, 2007
For use with VMWare when you don't run an X server:
cat /dev/zero > zero.dat ; sync ; sleep 1 ; sync ; rm -f zero.dat

Enable svn+ssh remote logins

to ssh svn osx subversion cli by metafeather on Mar 09, 2006
Installing Subversion for local use is general an easy install, but allowing remote access to your svn repository over SSH can be problomatic dependent upon your OS and the means taken to install.

For Darwinports and Fink on OS X the install location has to be added to users $PATHs, but there are extra steps outlined here for use of the svn+ssh means of access:

http://subversion.tigris.org/faq.html#ssh-svnserve-location

A much easier alternate is to sym link the svn binaries to a place on the default PATH (used by the SSH login):

#For Darwinports
ln -s /opt/local/bin/sv* /usr/bin/

#For Fink
ln -s /sw/bin/sv* /usr/bin/


This links all the binaries at once.

Stop bell/beep in bash

to linux cli debian by metafeather on Feb 27, 2006 
setterm -blength 0


Sets the bell length to zero for all applications

Get packet information on OS X

to osx network cli by metafeather on Feb 01, 2006 
ipconfig getpacket en0


According to the manual page for ipconfig, this command appears to be unique to Mac OS X.

The command will display a bunch of useful info, including:

server_identifier (ip): That's your DHCP server's IP address.
yiaddr: Your machine's IP address.
chaddr: Your machine's MAC address.
domain_name_server: Your domain name server(s).

Find and change a users uid

to find nfs cli by metafeather on Dec 15, 2005
Most useful for providing a consistent uid on machines accessing an NFS mount:

$ sudo find . -xdev -user <old-uid> -print -exec chown <new-uid> {} \;
6 total

On This Page:

  1. 1 Download with cURL in a Loop Until Completed
  2. 2 Zero data on a Linux disk
  3. 3 Enable svn+ssh remote logins
  4. 4 Stop bell/beep in bash
  5. 5 Get packet information on OS X
  1. 6 Find and change a users uid