K.Wanter's questions

I have a very simple question: Is there anyone knowing how to accept the 'END user agreement' of the CUDA installation with run file? tried different keys, googled but find nothing related...

┌──────────────────────────────────────────────────────────────────────────────┐
│  End User License Agreement                                                  │
│  --------------------------                                                  │
│                                                                              │
│                                                                              │
│  Preface                                                                     │
│  -------                                                                     │
│                                                                              │
│  The Software License Agreement in Chapter 1 and the Supplement              │
│  in Chapter 2 contain license terms and conditions that govern               │
│  the use of NVIDIA software. By accepting this agreement, you                │
│  agree to comply with all the terms and conditions applicable                │
│  to the product(s) included herein.                                          │
│                                                                              │
│                                                                              │
│  NVIDIA Driver                                                               │
│                                                                              │
│                                                                              │
│  Description                                                                 │
│                                                                              │
│  This package contains the operating system driver and                       │
│──────────────────────────────────────────────────────────────────────────────│
│ Do you accept the above EULA? (accept/decline/quit):                         │

Basically I want to write some script like

#!/bin/bash
for idx in 1 2 3 4 5 6
do
        ssh machine$idx tmux new-session -d -s "myTempSession$idx" python run.py
done

which can do the thing separately on each machine as:

ssh machine$idx 

tmux new-session -d -s "myTempSession$idx"

python run.py

but after many trial and error, I still cannot make it work as expected.

I came across a strange mistake, I have some data on machine1 at

/temp/user1/data/ 

I want to share it with another machine2, so I created same directory as

mkdir /temp/user1/data/

then on machine1, I do

sshfs /temp/user1/data user1@machine2:/temp/user1/data

it prompts

fuse: mountpoint is not empty
fuse: if you are sure this is safe, use the 'nonempty' mount option

then I do

sshfs -o nonempty /temp/user1/data user1@machine2:/temp/user1/data

suddenly, my data on machine1 under /temp/user1/data are all gone, leaving an empty folder! all data lossed! what is wrong, can I got my data back?

I have ~/.ssh/config file on my local machine as:

Host head
  User Marry
  HostName xxx.xx.xxx.xx

Host machine1
  User Marry
  HostName xxx.xxx.xxx.xx
  IdentityFile /home/Marry/ssh_head_keys/id_rsa
  ProxyCommand  ssh head nc %h %p 2> /dev/null

Host machine2
  User Marry
  HostName xxx.xxx.xxx.xx
  IdentityFile /home/Marry/ssh_head_keys/id_rsa
  ProxyCommand  ssh head nc %h %p 2> /dev/null

Host machine3
  User Marry
  HostName xxx.xxx.xxx.xx
  IdentityFile /home/Marry/ssh_head_keys/id_rsa
  ProxyCommand  ssh head nc %h %p 2> /dev/null

Host machine4
  User Marry
  HostName xxx.xxx.xxx.xx
  IdentityFile /home/Marry/ssh_head_keys/id_rsa
  ProxyCommand  ssh head nc %h %p 2> /dev/null

I can successfully do ssh machine1, ssh machine2, ssh machine3 my local machine, and go to machine 1-3, but for machine4, the command ssh machine4 failed with:

ssh_exchange_identification: Connection closed by remote host

How could this happen?

UPDATE: follow muru's advice, remove 2> /dev/null, I got the message when ssh to machine4:

bash: nc: command not found
ssh_exchange_identification: Connection closed by remote host

I used sshfs without sudo to create a directory like

sshfs [email protected]:/media/user/harddrive /temp/user/harddrive

but when I want to umount the /temp/user/harddrive directory with

umount /temp/user/harddrive

it prompts:

umount: /temp/user/harddrive: Permission denied

so how to umount this directory?

I'm confused about the ethernet hardware on my machine, I'm using ubuntu 14.04, with command lshw -C network I got the following output:

WARNING: you should run this program as super-user.
  *-network:0             
       description: Ethernet interface
       product: BCM57840 NetXtreme II 10 Gigabit Ethernet
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: p6p1
       version: 11
       serial: 78:24:af:85:3c:5c
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list rom ethernet physical fibre 1000bt-fd
       configuration: autonegotiation=off broadcast=yes driver=bnx2x driverversion=1.78.17-0 duplex=full firmware=bc 7.8.79 ip=192.168.0.196 latency=0 link=yes multicast=yes
       resources: irq:42 memory:dc000000-dc7fffff memory:db800000-dbffffff memory:dc810000-dc81ffff memory:fb780000-fb7fffff
  *-network:1
       description: Ethernet interface
       product: BCM57840 NetXtreme II 10 Gigabit Ethernet
       vendor: Broadcom Corporation
       physical id: 0.1
       bus info: pci@0000:04:00.1
       logical name: p6p2
       version: 11
       serial: 78:24:af:85:3c:5e
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list rom ethernet physical fibre 1000bt-fd
       configuration: autonegotiation=off broadcast=yes driver=bnx2x driverversion=1.78.17-0 firmware=bc 7.8.79 latency=0 link=no multicast=yes port=fibre
       resources: irq:45 memory:db000000-db7fffff memory:da800000-daffffff memory:dc800000-dc80ffff memory:fb700000-fb77ffff
  *-network
       description: Ethernet interface
       product: 82579V Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: em1
       version: 06
       serial: 10:c3:7b:46:c4:7b
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.3.2-k firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:82 memory:f7100000-f711ffff memory:f7128000-f7128fff ioport:f040(size=32)
  *-network
       description: Ethernet interface
       product: 82574L Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:0d:00.0
       logical name: p7p1
       version: 00
       serial: 10:c3:7b:46:14:41
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.3.2-k firmware=2.1-3 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:19 memory:fb200000-fb21ffff ioport:9000(size=32) memory:fb220000-fb223fff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

but I really dont know how to interpret the output, does it mean I have multiple ethernet adapters on the machine? but how can I tell which one I'm using now?

I observe there is BCM57840 NetXtreme II 10 Gigabit Ethernet but the capacity is only 1Gbit/s, does it mean I have not reach the optimal speed? how can tune it?

ADD: with ifconfig I got

em1       Link encap:Ethernet  HWaddr 10:c3:7b:46:c4:7b  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:18 Memory:f7100000-f7120000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:118394 errors:0 dropped:0 overruns:0 frame:0
          TX packets:118394 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2538318861 (2.5 GB)  TX bytes:2538318861 (2.5 GB)

p6p1      Link encap:Ethernet  HWaddr 78:24:af:85:3c:5c  
          inet addr:192.168.0.196  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::7a24:afff:fe85:3c5c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:179256971 errors:5665 dropped:0 overruns:5665 frame:0
          TX packets:170144980 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:210860777033 (210.8 GB)  TX bytes:147913380482 (147.9 GB)
          Interrupt:42 Memory:dc000000-dc7fffff 

p6p2      Link encap:Ethernet  HWaddr 78:24:af:85:3c:5e  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:45 Memory:db000000-db7fffff 

p7p1      Link encap:Ethernet  HWaddr 10:c3:7b:46:14:41  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:19 Memory:fb200000-fb220000 

but which one is active?

A simple question, say I want to ssh to cluster machines and monitor some info of each of them. Specifically, I want to run nvidia-smi on each of them to know the GPU usage of them. I tried:

for host in machine1 machine2 machine3
 do 
    ssh "$host" 
    nvidia-smi 
 done

but it only logs in to machine1, then just stopped there. Only after I exit machine1, will nvidia-smi execute, but on the local terminal, not on machine1. Then it logs in to machine2 and stops there...

say, my ~/.ssh/config has some line:

Host machine1
      User user
      HostName machine1
      ProxyCommand  ssh server nc %h %p 2> /dev/null

and this works properly, but the problem is that I have lot of machines: machine1, machine2, machine3, ... so how can I set all of them without manually copy same kind of lines

I am new to Linux and although I've been Using Ubuntu for a while I'm still not familiar with the error messages generated by the shell commands.

For example, when installing some driver/software or configuring development environments (like caffe with GPU surport on Linux), we often inevitably encounter many different error messages.

Usually I just copy the error and search online using that error to find solutions, and sometimes that works, but I don't always gain a deep understanding of the error message.

Are there any materials or resources to understand Linux shell error messages?

I have viewed the following questions, but did not get enough info:

• How to improve linux debugging ability and be proficient in using linux
• What is the best way to learn how to use Ubuntu with terminal?

My problem is simple, maybe silly, but I have tried many times and cannot solve it, hope someone can help, the question is, how to remove the underline in the header of a .docx file opened in LibreOffice writer software of ubuntu, as screen shot from my laptop showing the problem, I'm using 14.04 LTS and the default LibreOffice writer. Thanks in advance!

Newbie to linux, using ubuntu 14.04 LTS, my question is that I'm confused about the nvidia driver settings, with nvidia-smi, it gives

| NVIDIA-SMI 367.57                 Driver Version: 367.57                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 960M    Off  | 0000:01:00.0     Off |                  N/A |
| N/A   41C    P8    N/A /  N/A |   1318MiB /  4043MiB |     13%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID  Type  Process name                               Usage      |
|=============================================================================|
|    0      1103    G   /usr/lib/xorg/Xorg                             238MiB |
|    0      1984    G   compiz                                         143MiB |
|    0      2499    G   ...el-token=97D71C8F7958A5CC7D7CFCDDCA9ED82B    96MiB |
|    0      6010    C   ...cc/Downloads/software/envs/py2/bin/python   789MiB |
|    0      7096    G   ...rWithCastExtension/Enabled/EnableSessionC    48MiB |
|    0      8760    G   /usr/bin/nvidia-settings                         0MiB |

and in Nvidia X server settings, in PRIME Profiles, it says I'm using NVIDIA card, not the Intel card, but in software and updates, with additional drivers, it shows that I'm using the nouveau driver, but also a Nvidia 375 version driver which is not selected.(sorry I don't have enough reputation to post image) But with dpkg -l|grep nvidia, I only got the 367 version installed:

cc@cc-Lenovo-Rescuer-14ISK:~/Downloads$ dpkg -l|grep nvidia
ii  nvidia-367                                            367.57-0ubuntu0.14.04.1                             amd64        NVIDIA binary driver - version 367.57
ii  nvidia-opencl-icd-367                                 367.57-0ubuntu0.14.04.1                             amd64        NVIDIA OpenCL ICD
ii  nvidia-prime                                          0.6.2.1                                             amd64        Tools to enable NVIDIA's Prime
ii  nvidia-settings                                       367.48-0ubuntu1                                     amd64        Tool for configuring the NVIDIA graphics driver

so my confusion is that: what I'm truly using? is this version 375 already installed in my system and I can switch to it? what the additional drivers option really do? Thanks in advance!

EDIT: lspci -k | grep -EA3 'VGA|3D' gives:

00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06)
    Subsystem: Lenovo Device 0001
    Kernel driver in use: i915_bpo
00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model
--
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)
    Subsystem: Lenovo Device 0006
    Kernel driver in use: nvidia
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)