Questions tagged [gnu]
38 questions
1292
votes
39 answers
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 -n -r
Outputs a sorted disk usage by size…
Tom Feiner
- 16,158
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15
votes
6 answers
What is the OS X / BSD equivalent of the GNU "ps auxf" command?
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?
vdboor
- 3,550
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13
votes
2 answers
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. Only experts do this on purpose. Press CTRL-D to…
user1700840
- 313
- 1
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- 7
12
votes
3 answers
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 email@domain.tld
Problem is that this sends a mail…
cdecker
- 421
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10
votes
1 answer
Will restarting the system flush BIND (named) cache?
Will restarting the system flush BIND (named) cache? I use GNU/Linux.
Akilan
- 399
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- 11
9
votes
3 answers
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 all my traffic through the VPN, which is great,…
Lloyd Smart
- 93
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6
votes
2 answers
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.
CommunistPancake
- 197
- 1
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- 6
5
votes
1 answer
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's owner, which is listed already with -l … or is…
BRPocock
- 198
- 6
5
votes
1 answer
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 a specific window ie ctrl+c. I wish to do this…
robthewolf
- 151
- 7
5
votes
2 answers
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
I would like to know what is the difference…
Stormshadow
- 283
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- 11
5
votes
2 answers
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 except bash built-ins or binaries.
watch -d…
Artem Russakovskii
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3
votes
1 answer
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 application errors out because the chmod system…
Jacob Brown
- 131
- 3
3
votes
1 answer
Bug in diff: wrong output for one-character files without newline
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 reproduce this problem on Ubuntu 14.04 with diffutils 3.3, on…
Navin
- 133
- 5
3
votes
1 answer
What are main differences between Linux and FreeBSD system from sysadmin point of view?
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 administrative approach, configuration, file systems, etc.)…
Virtual_Lotos
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- 5
3
votes
1 answer
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 same version of Debian, but here the SAS disk is…
Ole Tange
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