Hey guys, no it's not the entire script and I needed many other keys. This was just the quickest and easiest way to show the problem area. I solved it by running tshark in the background, and had to output data to /tmp since I couldn't export the variable from the subshell back to the main process. As for the time gap I used 10 seconds on both read -t and timeout. I figure since the (timeout tshark) gets called and backgrounded right before keypress is called, it should work out pretty good.
hi,
am a new learner to shell programming.
i have a script which will prompt for user to key in their name & display their name afterwards.
script
=====
echo "Pls enter your name:"
read name
echo "Your name is $name."
output
=====
Pls enter your name:
Bob
Your name is Bob.
what... (2 Replies)
Sir,
I using the following commands in a file (part of a bigger script):
#!/bin/bash
cd /opt/oracle/bin
ls -lt | tail -1 | awk '{print $6}' >> /tmp/ramb.out
If I run this from the command prompt the result is:
2007-05-16
if I run it as a cron job then... (5 Replies)
Hi there,
I found a trick to easily postpone a command by a few seconds:
supernova:~# sleep 10 && command &If you logout, the command should still be executed... But not all the time.
Could anyone of you explain me why the following command is executed even after logging out:
supernova:~# sleep... (2 Replies)
Hi friends,
I have a script that sets the env variable path based on different conditions.
Now the new path variable setting should not done in the same terminal or same shell.
Only a new terminal or new shell should have the new path env variable set.
I am able to do this only as follows:
>cd... (1 Reply)
Hi, I hope the title does not scare people to look into this thread but it describes roughly what I'm trying to do. I need a solution in PHP.
I'm a programming beginner, so it might be that the approach to solve this, might be easier to solve with an other approach of someone else, so if you... (0 Replies)
Hi, I have text file abc.txt. In this file, I have the following data.
Input:
Mr Smith & Mrs Smith
Mr Smith &apos Mrs Smith
Mr Smith & Mrs Smith
Mr Smith& Mrs Smith
Mr Smith &Mrs Smith
Output:
Mr Smith & Mrs Smith
Mr Smith &apos Mrs Smith
Mr Smith & Mrs Smith
Mr Smith&... (4 Replies)
Hello people!
I would like to create one script following this stage
I have one directory with 100 files
File001
File002
...
File100
(This is the format of content of the 100 files)
2012/03/10 12:56:50:221875936 1292800448912 12345 0x00 0x04 0
then I have one... (0 Replies)
Can you explain what this line of script is doing.
What I have understood is :
-- variable C is the name of a software which is either not installed, so it must be installed or allready installed and then should be update if newer version found
-- branch B="$B $C" is to install the software
--... (4 Replies)
Hi All,
I am trying to run a script which will search for 2 strings(stopped,started) in a text file and echo an output depending on below condition
-bash-3.2$ cat trial1.txt
v
ggg
f
-bash-3.2$ cat trial1.sh
VAR9=` grep 'stopped' /tmp/trial1.txt`
VAR10=` grep 'started'... (4 Replies)
Hi All,
Do you have any sample script,
- auto get file from SFTP remote server and delete file in remove server after downloaded.
- only download specify filename
- auto upload file from local to SFTP remote server and delete local folder file after uploaded
- only upload specify filename
... (3 Replies)
Discussion started by: weesiong
3 Replies
LEARN ABOUT DEBIAN
vdetaplib
VDETAPLIB(1) General Commands Manual VDETAPLIB(1)NAME
vdetaplib - Virtual Distributed Ethernet tap emulation library
SYNOPSIS
No synopsis
DESCRIPTION
vdetaplib is a library that emulates tap (tuntap level2 interface, see in kernel sources Documentation/networking/tun.c) and connects tap
virtual interfaces to vde networks.
To use it, the libvdetab.so library must be preloaded (sh, ksh or bash syntax):
export LD_PRELOAD=/usr/lib/vde2/libvdetap.so
(csh, tchs syntax):
setenv LD_PRELOAD /usr/lib/vde2/libvdetap.so
If you want to divert all tap requests to a single vde_switch set the variable VDEALLTAP to the vde socket.
(sh, ksh or bash syntax):
export VDEALLTAP=/tmp/vde.ctl
(csh, tchs syntax):
setenv VDEALLTAP /tmp/vde.ctl
It is possible to set each single interface to different vde_switches by setting the environment variable with the same name of the inter-
face.
(sh, ksh or bash syntax):
export tap0=/tmp/vde.ctl
export tap1=/tmp/myvde.ctl
export ppc=/tmp/ppc.ctl
(csh, tchs syntax):
setenv tap0 /tmp/vde.ctl
setenv tap1 /tmp/myvde.ctl
setenv ppc /tmp/ppc.ctl
It is also possible to specify port, group or mode for a given interface setting environment variables as in the following example.
(sh, ksh or bash syntax):
export tap0_port=5
export tap0_group=vde-net
export tap0_mode=0660
(csh, tchs, syntax):
setenv tap0_port 5
setenv tap0_group vde-net
setenv tap0_mode 0660
The variable to set the specific interface is checked first then VDEALLTAP. VDEALLTAP thus works as a default choice for the vde switch to
be used. If VDEALLTAP is not set and there is no specific environment variable (and for tun -- IFF_TUN interfaces) the kernel provided
interface is used. In this latter case access to /dev/net/tun is required, generally root access.
NOTICE
Virtual Distributed Ethernet is not related in any way with www.vde.com ("Verband der Elektrotechnik, Elektronik und Informationstechnik"
i.e. the German "Association for Electrical, Electronic & Information Technologies").
SEE ALSO vde_switch(1), vdeq(1).
AUTHOR
VDE is a project by Renzo Davoli <renzo@cs.unibo.it>
Virtual Distributed Ethernet December 6, 2006 VDETAPLIB(1)