Lease Help Locked Out Of My System!

I accidentally hit run on the following:

sudo chmod -R go+r-x u+rwx /

and now I can not preform any command

Help would be much appreciated!

D

System Info:

I have normal user in CentOS 7 whose name is "mostafa" (the name of the account).

I naturally have another user called root with all privileges. User "mostafa" is put into sudoers file, too.

The OS is installed in VmWare, so the system is all mine.

Problem:

Now I create a file with touch file.sh and put a command in it, but when I want to run it with Code:

sudo ./file.sh

, an error is shown that the command Code:

./file.sh

does not exist. But if I Code:

 sudo chmod 777 ./file.sh

then it gets run. My question is that, why should I use Code:

chmod 777

when I myself have created the file, and I am in sudoers.

Can anyone explain me why shuold I still use Code:

sudo chmod 777

when the creator of the file is me.

I am toying around with a LFS system and I am suddenly having trouble with sudo not finding binaries in the standard superuser only binary dirs (/sbin /usr/sbin). I am using sudo version 1.8.10p3. The sudoers file parses correctly and I did not modify except to allow users in the wheel group to be able use sudo to call any command. So I imaging something is wrong with the $PATH variable but I am not sure on what it is.

Here is the problem:
/usr/lib/libgconf2-4/gconf-sanity-check-2 exited with status 256

Here are all the solutions I founded on the internet (NONE of them work):
rm -rf /var/tmp/rc_host_0
chown -rwx root:root /tmp
chmod 1777 /tmp
chmod 0755 /home
chmod a+rwx /tmp
chown -R root:root /var/lib/gdm
chmod -R 777 /var/lib/gdm
rm -rf /var/lib/gdm3/.*
rm -rf /var/lib/gdm/.*
rm -rf /Home Dir/UserName/.gcon*
rm -rf /Home Dir/UserName/.gnom*
rm -rf /Home Dir/UserName/.cache
rm -rf /Home Dir/UserName/.person*
touch /Home Dir/UserName/.personal.login
cat /etc/gconf/gconf.xml.system
mkdir -p /usr/local/etc/gconf/gconf.xml.default
chmod 775 /etc/gconf/gconf.xml.system

Here is my system information:
Linux Kernel v2.6.32-504.12.2.el6.x86_64
CentOS 6.6
GNOME 2.28.2

I have been searching for an answer all week and found NONE.
Somebody, Anybody please help!!!

The only solution I found that works is deleting all the .files, but there's got to be a better way.

I have an external disk but I can only write to it using sudo, not as my normal user.

The commands I've issued a
Code:

sudo mkdir /media/USBSSD
sudo mount -t auto /dev/sda1 /media/USBSSD
sudo chmod 777 /media/USBSSD
sudo mkdir /media/USBSSD/share

How can I set it up so that other users can write to it?

I am working on LAR protocol, ns2 version = 2.32
OS = ubuntu 12.04

i successfully installed LAR NS on my system . but nam does not qork with ns-2.32 . so i tried to install with the following command

sudo make install nam ===> it successfully installed namv1.15 . but when i run box.tcl it is giving me the following error

SORTING LISTS ...DONE!
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 220.0
Segmentation fault (core dumped)

then i tried to remove the nam with this command sudo apt-get remove nam ==> removed
then i installed this nam from (nam_1.14_amd64.deb) . when i write nam it shows me network animator window v1.14 but segmentataion fault error remains the same .

I also tried to install nam-1.14.i586.tar.gz , first untar it and then the following command sudo cp nam /usr/local/bin but still the error .
i also tried with nam-1.14-x86_64.tar.gz but still no success.

if i dont use nam , then my box file runs successfully.
plz suggest me how to rectify this error.

Hello everyone!

Can anyone help me in how to work the chmod command?
Suppose that you have a directory of udir12, a subdirectory udir121 (under udir12) and a file called file131 under directory udir121.

How do you change permission for the directory udir12 and all subdirectory and files to 770?

Can anyone help me out please!!!

Thanks
Carlos

I try to install ubuntu 9 on woindows 7.The ubuntu is working quite fine.I try to see where my bin files are located.Its in folder FILE SYSTEM.
My commands ip addr,ls are working.

The command sudo cd/usr/bin is not working.

Please let me know where problem is.

I tried adding two users in apache group and given 775 permission to Document root but user is not able to write into files in DocumentRoot

Tried adding user and DocumentRoot Folder in sudo file but not able to do it recursively

please help


Thanks for reply,
I have already given chmod 775 -R DocumentRoot - for recursively writting permission
You have told to add user in www-data group and chmod 775 -R to DocumentRoot
usermod -a -G www-data <user1>

How can users in www-data can able to write in DocumentRoot which has apache:apache owner and group
please clarify...

Done below steps to solve this:
1) I have created a new group webdata and added required users in this group
2) set sticky bit to document root with below command
setfacl -m g:webdata:rwx -R /path/to/documentroot/
this command will set rwx permission to DocumentRoot so that members in webdata can have full access but still DocumentRoot user and group will be apache

Hello,

I am getting the follwoing error for Red Hat Enterprise Linux Server release 6.6

sudo su -
sudo: >>> /etc/sudoers: syntax error near line 118 <<<
sudo: parse error in /etc/sudoers near line 118
sudo: no valid sudoers sources found, quitting
sudo: unable to initialize policy plugin

cd /etc/sudoers.d/
-bash: cd: /etc/sudoers.d/: Permission denied

Could you help me to figure it out. As a root user am able to access but as normal user it is not allowing to sudo su - command.

vi /etc/sudoers.d/access
username ALL=(ALL) NOPASSWD: ALL

Please let me know if any additional formation required.