|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
for loop syntax trouble
Post 302184702 by visitorQ on Saturday 12th of April 2008 01:46:02 PM
04-12-2008
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have seen this done before - and maybe there is a better way too.
I want to be abe to use a for loop (or other better method) to loop through the database instance names that are part of the script - not an external file where a read might be ok.
Here is what I have and I know won't work -... (5 Replies)
Discussion started by: dave-mentor
5 Replies
2. Shell Programming and Scripting
Can anyone tell me what's wrong with my code here? I'm experiencing weird behavior...
I am using 'j' to go down a list filenames saved in a .txt file and prompting the user whether or not she would like to delete each one. This works all well and fine the first run through, but then instead of... (2 Replies)
Discussion started by: RSymphony
2 Replies
3. Shell Programming and Scripting
When I run the following command in the shell it works fine. It prints a city name and then a path for a file.
~$ for i in `awk -F':' '{print $0}' /home/knoppix/Desktop/data/subs | grep -m 1 $ city | sed "s/:/ /"`
>do
>echo $i
>done
Now, when I place it in this shell script (sh) it prints... (6 Replies)
Discussion started by: afroCluster
6 Replies
4. Shell Programming and Scripting
hi,
I have to use for loop in my script. The below code is providing an output,
1,2,3,4,5..n. But i need to display the values one by one eg: it has to display the first value then exit from the loop and display the second value then exit till n(last value).
for i in 1,2,3,4,5..n
do ... (2 Replies)
Discussion started by: sreelu
2 Replies
5. Programming
HI there,
I am trying to count manually what this code does but I am stuck and I don't learly see the result. The code works and it compiles and runs but I just don't follow the value of var.
#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<unistd.h>
#include<wait.h>... (2 Replies)
Discussion started by: bluetxxth
2 Replies
6. UNIX for Dummies Questions & Answers
%%%%% (3 Replies)
Discussion started by: lucasvs
3 Replies
7. UNIX for Dummies Questions & Answers
#!/bin/bash
function check_num_args()
{
if ; then
echo "Please provide a file name"
else
treat_as_file $*
fi
}
function treat_as_file()
{
numFiles=$#
for((i=1;i<=$numFiles;i++));do
echo $i
... (3 Replies)
Discussion started by: kikilahooch
3 Replies
8. UNIX for Dummies Questions & Answers
Good evening all I have what might be a simple problem to solve but I do not know how to solve it myself. I am writing a bash script and my code looks something like this:
mp3=`ls | grep \.mp3`
for f in $mp3
do
echo $f
done
Basically what I want to do is look through the current... (4 Replies)
Discussion started by: mistsong1
4 Replies
9. Shell Programming and Scripting
I have the text file where each line has the format:
chr10 101418889 101418904 0.816327
Right now the interval between column 2 and 3 is 15. I only want the two consecutive positions starting at position 1, write it to a file, then move up one position write to file etc. So that:
... (1 Reply)
Discussion started by: jfern
1 Replies
10. Shell Programming and Scripting
I have a shell script which has this while loop line
"while read tblName xx; do..."
I understand how while loop works but don't know what does this xx stands for? (1 Reply)
Discussion started by: later_troy
1 Replies
LEARN ABOUT DEBIAN
farpd
ARPD(8) BSD System Manager's Manual ARPD(8) NAME
farpd -- ARP reply daemon SYNOPSIS
farpd [-d] [-i interface] [net ...] DESCRIPTION
farpd replies to any ARP request for an IP address matching the specified destination net with the hardware MAC address of the specified interface, but only after determining if another host already claims it. Any IP address claimed by farpd is eventually forgotten after a period of inactivity or after a hard timeout, and is relinquished if the real owner shows up. This enables a single host to claim all unassigned addresses on a LAN for network monitoring or simulation. farpd exits on an interrupt or termination signal. Note: The program name farpd has been changed in Debian GNU/Linux from the original name (arpd) to avoid name clash with other ARP daemons. The options are as follows: -d Do not daemonize, and enable verbose debugging messages. -i interface Listen on interface. If unspecified, farpd searches the system interface list for the lowest numbered, configured ``up'' interface (excluding loopback). net The IP address or network (specified in CIDR notation) or IP address ranges to claim (e.g. ``10.0.0.3'', ``10.0.0.0/16'' or ``10.0.0.5-10.0.0.15''). If unspecified, farpd will attempt to claim any IP address it sees an ARP request for. Mutiple addresses may be specified. FILES
/var/run/farpd.pid SEE ALSO
pcapd(8), synackd(8) BUGS
farpd will respond too slowly to ARP requests for some applications. In order to ensure that it does not claim existing IP addresses it will send two ARP request and wait for a reply. This slowness affects the nmap network scanning tool, and possibly others, which uses by default ARP when scanning local networks. The answers from farpd will come after the tool has timeout waiting for the ARP replies and, consequently, IP addresses claimed by farpd will not be discovered. Additionally, farpd sends the ARP replies to the broadcast address of the network and not to the host that send the ARP request. Some systems and applications (notably nmap) will not handled these requests and expect directed ARP replies (i.e. targeted specifically to the host that sent the request and not to the network) AUTHORS
Dug Song <dugsong@monkey.org>, Niels Provos <provos@citi.umich.edu> August 4, 2001