Linked Questions

0
votes
2answers
50 views

Why can't I change the hostname of my server using sudo? [duplicate]

From a user that is part of the sudoers group, I can normally run any command by doing sudo <command> But the following command fails stating "Permission denied" sudo echo "myhostname" > ...
7
votes
7answers
257 views

Emptying a file for root user does not work [duplicate]

I use below command to empty a file > file.txt It works perfectly fine! But there are some files with root user permissions. So I tried sudo > different-file.txt and I got below verbose ...
0
votes
0answers
14 views

Permission denied when trying to write to a file in /sys directory [duplicate]

I'm trying to manually set the speed of the fan on my Macbook Pro 7.1 which is running Crunchbang Linux Waldorf. I'm following the instructions in this blog article ...
1
vote
1answer
184 views

Why do I get “Permission denied” when redirecting the output of sudo echo “xyz” to a file? [duplicate]

Why do I get -bash: test: Permission denied when I run sudo echo "xyz" > test The directory permissions are: drwxr-xr-x 3 root root 4096 2014-08-05 16:26 I have no problem creating a ...
9
votes
3answers
2k views

Execute a line of commands with one sudo

For example if I want to create a file and enter text in one line I can redirect the output into a file with the use of the > operator: echo "something" > /path/foobar but if I don't have ...
0
votes
1answer
43 views

Write a file in /var/lib/sysnews/ [duplicate]

In that folder are stored the news files: they can be created by the system administrator to write some informations for the users, as suggested in this link. I tried as a normal user to add a file ...
2
votes
4answers
2k views

Unable to write to a GPIO pin despite file permissions on /sys/class/gpio/gpio18/value

This is on a Raspberry Pi. Here's the output of sudo ls -lL /sys/class/gpio/gpio18: -rwxrwx--- 1 root gpio 4096 Mar 8 10:50 active_low -rwxrwx--- 1 root gpio 4096 Mar 8 10:52 ...
3
votes
2answers
495 views

insert text in a file using echo command [duplicate]

I am trying to insert some text in a file in the following way sudo echo "abc-abc/abc/abc" >> /etc/portage/make.conf but it give me the error Permission denied although I am using sudo ...
2
votes
1answer
642 views

Can't edit /proc/sys/net/core/wmem_max [duplicate]

Recently my wireless network has being stopping to transfer data from some irregular time intervals that vary from 30 seconds to 20 minutes, and every time I need to plug off and then on the wireless ...
2
votes
3answers
2k views

Using sudo in openSUSE without actually changing to root user (i.e., like in Ubuntu)

I recently started trying openSUSE 12.3 after having used Ubuntu for a few years. I'm still getting used to openSUSE's treatment of su (and sudo) vs. Ubuntu's use of sudo. I've been reading the ...

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