hey there
i kinda have a small/big problem. i have created a 'small' version of a shell that only accepts ls comamnds. my problem is that when i compiled the program and got it to work, i deleted the .c file from which the shell was created. but now, i would like to do some more work on the... (2 Replies)
Hi there I currently use a line in a script
ndate=$(date +"%d/%m/%Y")
This obviously returns the date in a format i have chosen. However, I need to come up with a solution for weekends and as such need a way of returning todays date minus two days in the same format (24/11/2004)
so for... (3 Replies)
I have a shell script that carries out an extraction process as follows:
For a given input file dummy which looks like the following:
a.txt
a 1
a 2
xnzbcnzbxcbzxncbmnzxbcmzx
546
456
45
5
6
56
a 3
b.txt
b1
b2 (1 Reply)
Hello all expert network administrator, i truly new to networking. Please help me in this problem. /etc/hostname.rl1(Wired Internal interface) inet 10.0.0.1 255.255.255.0 none
/etc/hostname.ral0 : inet 10.0.1.1 255.255.255.0 and others option as well.
/etc/dhcpd.conf : share-network local {... (82 Replies)
I have a file tmp.out with contents:
2008-08-09 05:11:01
2008-08-09 08:52:59
2008-08-11 12:08:34
2008-08-11 12:15:40
I want the output to be:
3|0|1|71|2008-08-09 05:11:01|2008-08-30 11:19:28
4|0|1|71|2008-08-09 08:52:59|2008-08-30 11:19:28
5|0|1|71|2008-08-11 12:08:34|2008-08-30 11:19:28... (6 Replies)
hi folks,
i have a horstbox-router with the following configuration.
it has 4 ethernet ports from wich one (wan0) is configured as an external modem via dhcp. at this port/interface(wan0) it is connected with my home network (other switch).
this configuration results in the following... (14 Replies)
hello, i am a newbie and i really need your help
i have an centos 6.5 and i wonder if i can create a list with random 4 letters :
gdjf
ornc
tyrn
jfdn
nofd
etc....
if it can be done , i will really apreciate your help ! THANKS !!!
---------- Post updated at 07:16 AM... (10 Replies)
Dear friends
I use RedHat 6.5, which sets the gateway in the configuration file / etc / sysconfig / network as GATEWAY = 192.168.1.26, and the gateway in the configuration file / etc / sysconfig / network-scripts / ifcfg-eth11 as GATEWAY = 192.168.1.256. The two gateways are different.... (6 Replies)
Discussion started by: tanpeng
6 Replies
LEARN ABOUT ULTRIX
route
route(8c)route(8c)Name
route - manually manipulate the routing tables
Syntax
/etc/route [ -f ] [ -n ] command args ]
Description
The program is used to manipulate the network routing tables manually. However, normally it is not needed, as the system routing table
management daemon, should tend to this task.
The program accepts two commands: add, to add a route and delete, to delete a route.
All commands have the following syntax:
/etc/route command [ net | host ] destination gateway [ metric ]
In this syntax, destination is a host or network for which the route is to, gateway is the gateway to which packets should be addressed,
and metric is an optional count indicating the number of hops to the destination. The metric is required for add commands. It must be
zero if the destination is on a directly-attached network, and nonzero if the route utilizes one or more gateways.
When adding a route with metric 0, the gateway given is the address of this host on the common network, indicating the interface to be used
for transmission. Routes to a particular host are distinguished from routes to a network by interpreting the Internet address associated
with destination. The optional keywords net and host force the destination to be interpreted as a network or host, respectively. If the
destination has a local address part of INADDR_ANY, then the route is assumed to be to a network. Otherwise, it is presumed to be a route
to a host. If the route is to a destination connected via a gateway, the metric should be greater than 0. All symbolic names specified
for a destination or gateway are looked up first as a host name using If this lookup fails, is then used to interpret the name as that of a
network.
The command uses a raw socket and the SIOCADDRT and SIOCDELRT ioctls to do its work. As such, only the superuser can modify the routing
tables.
Options-f Flushes the routing tables of all gateway entries. If is used with one of the commands described above, the tables are flushed prior
to the command's application.
-n Prevents attempts to print host and network names symbolically when reporting actions.
Restrictions
The change operation is not implemented. Therefore, you should first add the new route, and then delete the old one.
Diagnostics
add [host | network] %s: gateway %s flags %x"
The specified route is being added to the tables. The values printed are from the routing table entry supplied in the ioctl call. If the
gateway address used was not the primary address of the gateway (the first one returned by the gateway address is printed numerically as
well as symbolically.
delete [ host | network] %s: gateway %s flags %x
The specified route is being deleted from the tables. The values printed are from the routing table entry supplied in the ioctl call. If
the gateway address used was not the primary address of the gateway (the first one returned by the gateway address is printed numerically
as well as symbolically.
%s %s done
When the flag is specified, each routing table entry that is deleted is indicated with a message of this form.
Network is unreachable
An attempt to add a route failed because the gateway listed was not on a directly-connected network. The next-hop gateway must be given.
not in table
A delete operation was attempted for an entry which was not present in the tables.
routing table overflow
An add operation was attempted, but the system was low on resources and was unable to allocate memory to create the new entry.
See Alsointro(4n), routed(8c)route(8c)