I accidentally changed to only write permission on /usr/bin... please Help! Post: 302392146

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Operating Systems OS X (Apple) I accidentally changed to only write permission on /usr/bin... please Help! Post 302392146 by scaryMac23 on Wednesday 3rd of February 2010 12:26:50 PM

02-03-2010

Registered User

I accidentally changed to only write permission on /usr/bin... please Help!

I accidentally changed to sudo chmod a=w to my /usr/bin folder on my macbook with OS 10.5.8... Please help! I can't even get into a terminal correctly cause it displays:

Code:

-bash: uname: command not found
-bash: cut: command not found
-bash: uname: command not found
-bash: cut: command not found
-bash: /usr/bin/perl: Permission denied
-bash: [: too many arguments
-bash: grep: command not found
-bash: grep: command not found
-bash: cut: command not found
-bash: grep: command not found
-bash: cut: command not found
-bash: grep: command not found
-bash: /Users/ro/.gem/ruby/1.8/bin: No such file or directory
RosBook:~ ro$

And when I trying to changed back the permission set it doesn't even recognize the "sudo" command... I have tryied several times to Repair Disk Permissions using disk utility but it doesn't seem to work either, can someone please help me through this?

Many thanks

Last edited by pludi; 02-03-2010 at 02:36 PM.. Reason: code tags, please...

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LEARN ABOUT SUNOS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The  following  default	shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh,
       /bin/tcsh,  /bin/zsh,  /sbin/jsh,  /sbin/sh,  /usr/bin/bash,  /usr/bin/csh,  /usr/bin/jsh,  /usr/bin/ksh,  /usr/bin/pfcsh,  /usr/bin/pfksh,
       /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.

       Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)).

FILES

       /etc/shells	       lists shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.10							    4 Jun 2001								 shells(4)