Questions tagged [gnu]
The gnu tag has no usage guidance.
38
questions
1459
votes
39
answers
1.2m
views
How can I sort du -h output by size
I need to get a list of human readable du output.
However, du does not have a "sort by size" option, and piping to sort doesn't work with the human readable flag.
For example, running:
du | sort -...
15
votes
6
answers
16k
views
What is the OS X / BSD equivalent of the GNU "ps auxf" command? [closed]
In the GNU utils, ps auxf gives the process list with forest (tree).
Is there a equivalent for this command at BSD / OS X systems?
13
votes
3
answers
15k
views
Sending mail from command line if body not empty
I'd like to write a simple script that alerts me if a log changes. For this I'm using grep to find the lines I'm interested in. Right now it works like this:
grep line /var/log/file | mail -s Log ...
13
votes
2
answers
12k
views
Using parallel to run script without input
I'm trying to run many instances of a script with GNU parallel, but the script takes no arguments.
If I just execute 'parallel foo.sh' I get this:
parallel: Warning: Input is read from the terminal. ...
10
votes
1
answer
8k
views
Will restarting the system flush BIND (named) cache?
Will restarting the system flush BIND (named) cache? I use GNU/Linux.
9
votes
3
answers
25k
views
Bypass openvpn for particular ip
My desktop machine runs Trisquel GNU/Linux 6.0 (which is basically a libre version of Ubuntu 12.04), and I use OpenVPN to connect to a commercial VPN provider for internet access.
It currently routes ...
6
votes
2
answers
16k
views
glibc 2.7 on CentOS 5.5?
I'm trying to run a program that requires glibc 2.7, but I'm running it on CentOS 5.5. Is there any way to do this? I can't upgrade to CentOS 6.
5
votes
2
answers
3k
views
Difference between UnxUtils and GNU CoreUtils
I am a Windows user who wants programs like grep and sed along with other utilities like ls, cut etc in my command prompt. I came across 2 packages which would accomplish this
UnxUtils
GNU Coreutils
...
5
votes
2
answers
3k
views
GNU watch - how do I make it read my environment (aliases, functions, etc)
This one has been bugging me for a while: I want to use the marvelous GNU watch command to run a few custom aliases and functions that are defined in my .bashrc, but it is never able to run anything ...
5
votes
1
answer
328
views
Who is the "author" of a file (Gnu "ls" manual)
In the manual for Gnu "ls," I see this:
--author
with -l, print the author of each file
Does anybody know what the “author” of a file means in this context?
This is (maybe?) not the file'...
5
votes
1
answer
1k
views
send interrupt to window in screen
How can I send a interrupt to a window within screen. I have screen running with several windows. Each of the windows have processes running within them. I wish to be able to send and interrupt to ...
4
votes
2
answers
7k
views
how to list files that are NOT open using find command
I want to "list" all the files that are NOT open, within a certain directory using the GNU find command. Now, I am able to list the files that are open, but can't figure out a way to do the inverse of ...
3
votes
1
answer
2k
views
What are main differences between Linux and FreeBSD system from sysadmin point of view? [closed]
What are main differences between Linux and FreeBSD system from sysadmin point of view ?
What specifically and significantly differs Linux from BSD (memory/resources/users management, other ...
3
votes
1
answer
3k
views
How to have multiple users access to chmod() the same file?
I have a system where multiple users are running an application that chmod the same file. I've tried using setacl to add both users as user owners of the file to do this, but it doesn't work. The ...
3
votes
1
answer
576
views
How to extend a selection in the linux console editors nano and pico?
How do I extend a selection in nano and pico with the keyboard, so I can move and copy blocks?
Sorry, this is a question I would normally find out by myself but I have searched a lot in different ...
3
votes
2
answers
252
views
Do the GnuWin32 tools require the POSIX subsystem to run?
I would like to remove Posix from the Group Policy Object Computer Configuration\Policies\Windows Settings\Security Settings\Local Policies\Security Options\System settings: Optional Subsystems.
Do ...
3
votes
1
answer
280
views
Bug in diff: wrong output for one-character files without newline [closed]
Consider this:
echo -n a > /tmp/a
echo -n b > /tmp/b
diff -B /tmp/a /tmp/b
Clearly, the two files are different, yet, diff seems to think that the files are identical. I've managed to ...
3
votes
1
answer
3k
views
GNU/Linux: SAS-disk detected as /dev/sg7 - not as /dev/sdb
I have just installed a SAS disk into a Debian server. It was detected correctly and everything was fine.
Then I moved the SAS disk to a different Debian server, the same hardware model and running ...
2
votes
3
answers
607
views
How do I determine the linux server software/version and email server software/version running
I just inherited this a single linux box running pop/smtp for a small office (25 users). I'm new to Linux. I think the box is running Debian GNU/Linux 5.0 as the server (this is bannered accross the ...
2
votes
1
answer
188
views
How to specify GNU screen ACL as part of its command line?
What I'm trying to do is spawn a detached screen session, but as part of the command line that creates it - also modify the ACL list.
So right now I have
screen -dmS MySession "SomeProgram" "...
2
votes
1
answer
394
views
Selenium server causes crazy load on box - how to prevent?
I'm running this linux:
Linux host.themepark.com 2.6.32-220.4.1.el6.x86_64 #1 SMP Tue Jan 24
02:13:44 GMT 2012 x86_64 x86_64 x86_64 GNU/Linux
And I run the Selenium stand-alone server on my box ...
1
vote
2
answers
2k
views
let users group do "sudo -u username chown"
I would like to edit /etc/sudoers so that group users can execute (only) /bin/chown as user dummy. How might this be done?
1
vote
3
answers
2k
views
Automatically power down home GNU/Linux server after 30 minutes of inactivity [closed]
I'd like my home GNU/Linux server to power down after 30 minutes of inactivity. For "activity", I'm thinking
any new [CUPS] print jobs
any requests to a locally running Apache server
any activity ...
1
vote
2
answers
5k
views
How to limit du output to a specific user?
I need to help a specific user, say alice, free up some disk space; but not all the user's files are in his home directory; many are in directories shared with other users. I'd like to have something ...
1
vote
2
answers
125
views
Has anyone used GNU MyServer as their web server instead of Apache/Lighttpd/etc.?
I just stumbled upon GNU myServer and it says it's a multi-threaded server and it looks like the configuration is a bit better than Apache but I'm hestitant to try it. Has anyone used it? What were ...
1
vote
2
answers
1k
views
Issues while untaring in Linux- tarball created from Solaris
I am getting an error- Unknown file type 'A', extracted as normal file
while un-tarring a set of files which has acl permissions set.
I had created the tar file in solaris as tar -cpfv ...
1
vote
5
answers
5k
views
How to monitor switch in Nagios3?
I need to monitor the traffic rate in my LAN. I have installed nagios core 3.2 and I can monitor services like CPU load, disk usage, http server, etc. but now, How to monitor traffic?
I am using GNU/...
1
vote
1
answer
116
views
Start Daemonised GNU Screen from script a allow calling script to end
I have a script on an embedded device that calls screen to start if a user logs in via a ssh session...
#!/bin/sh
SCREENRUNNING=`pgrep SCREEN`
if [ -z "$SCREENRUNNING" ]; then
echo "Screen not ...
0
votes
1
answer
6k
views
Why can't I get wget to pipe standard output to /dev/null?
When I run this command it works as expected:
wget -p https://www.google.com/
After running this command I check the error code with
echo $?
This returns 0, indicating that last command ran ...
0
votes
1
answer
319
views
Why doesn't ps resolve usernames including dashes
On Debian and Ubuntu (probably on other GNU systems too), when ps lists a process' user, it normally resolves its name, but when a process is running as a user which has a dash in its name, the user's ...
0
votes
3
answers
3k
views
GNU Mailutils attach file
Is it possible to attach a file to an email from the CLi using mail?
I am having trouble finding this feature on the manpage.
0
votes
1
answer
59
views
Does tar create point-in-time snapshots?
I know that tar can be used to create a backup.
However I wonder if the operation creates point-in-time backups or not.
Basically I wonder if it grants consistency if the directory and files are ...
0
votes
1
answer
1k
views
Unable to use grep regex to search for filename containing period
Ubuntu 14.x. Using grep to search for all files linuxtest-client2. This includes multiple file extensions (csr, crt, key). When I grep for the middle portion of the filename, "2.", it also returns ...
0
votes
1
answer
165
views
How to install GNU build tools from Blastwave
I am trying to install the GNU build tools on Solaris using Blastwave. I have installed CSWgcc4 but when I run gcc or gcc4 I get command not found. There is not any file like gcc gcc4 in /opt/csw/bin.
...
0
votes
1
answer
1k
views
Compile Node with GCC v4.9.2
I can't seem to be able to compile Node.js on CentOS 6.6 (64 bits) GCC v4.9.2
$ ./configure
Node.js configure error: No acceptable C compiler found!
Please make sure you have a C compiler ...
0
votes
1
answer
699
views
gpg --import bind-9.9.4.tar.gz.sha1.asc fails with no valid OpenPGP data found
This is the first time I figured I had better check the keys of the bind software I want to install. So I downloaded what I think is a OpenPGP key ...
$ wget ftp://ftp.isc.org/isc/bind9/9.9.4/bind-9....
0
votes
0
answers
423
views
Why do I get a Too Many Redirects Error on my GNU Social Heroku deployment?
I'm using heroku, apache, php and gnusocial. My plan is to deploy a GNU Social instance for my family.
I fiddled with the composer.json file, to where it looks like this:
{
"name": "jmm/me-and-...
-2
votes
1
answer
11k
views
How to install GNU make in Windows 7? [closed]
I am trying to install GNU make-3.82 on Windows 7. I downloaded the make-3.82.tar.gz setup but it does not have any setup file.
There is process given on GNU site. But when I reach to the folder in ...