Want to run some cmds on Marc Greis Tutorial but always gets an error msg- "can't find ns: no such command. How can I resolve it? Also do not know how to edit on the terminal Have to start afresh anytime I notice a mistake. How can I successfully run a file to get a result. Have not been able to reproduce the result in Marc Greis tutorials.
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Please let me know how i will overcome this.I have tried from the past 5 days.
[root@localhost ~]# cc p.cc
In file included from p.cc:1:
/root/ping.h:2:32: warning: multi-character character constant
In file included from p.cc:1:
/root/ping.h:4: error: stray in program
/root/ping.h:2: error: invalid function declaration
[Code]...
Split programming in ns2 marc greis chapter 7 ping protocol code. I tried compiling the above program and got the errors as in error.txt I have attached. Ping.cc and ping.h also are attached. I have supplied all the required header files along with appropriate paths and yet this problem.
ATTACH]5537[/ATTACH]
pingcc.txt
pingh.txt
I had hard drive = 2 partition, 1 being extended. I had two ubuntu instances+swap+fat on extended and XP on primary. I moved a partition = success. I create a new partition = success. I installed new ubuntu instance -> fail on restart->. I saw sector error on screen on restart. So, Grub has lost 1 existing ubuntu instance and could not create new entry for new ubuntu instance. Read on forum just boot from Live CD and execute some grub cmds from terminal?
View 5 Replies View RelatedI want to start learning GUI bash scripting but I can't find the right tutorial. I'm interesting at creating menus like ex. IPTRAF or MC (midnight commander) but all i find is tutorials for KDE & GNOME. The idea is that I want to create programs that don't need X sessions.
View 2 Replies View RelatedDoes anyone know from experience a good gdb tutorial, so I can learn to use it from the command line.
View 2 Replies View RelatedI need to open a telnet session using a shell script that follows this format:
telnet 10.100.0.1
expect "Password:"
send <password>
[code]....
send "pen" (till the end of lines generated as in |more.... usually we use like 8 space bar buttons after "pen" to generate all)
and I want to redirect the whole generated result of "pen" to results.
We make everyday a DB Mysql backup on Linux redhat Enterprise. We are using a bash shell script (and putting it in the crontab) to execute it automatically everyday. We added a line to this script telling, once the backup has completed, to find old backup files (stored on hard disk after each backup) older than x days to remove them. We use the find command (search for file type) with the mtime option and in combination with rm command. Everything runs ok but we also want to add some new code to the same line: If find command cannot find anything or fails, for example if it cannot delete file or fails, send the error message (standard error output) to an error file (like error000001 and increasing) and mail the errorxxxx file to an email address for example to admin@companyname.com. What would be the code for this issue to add it to our find command in the same bash shell script??
View 2 Replies View RelatedI'm trying to find a "clear" tutorial on how to set up a RAID 1 arrangement. Most of the material I come across is out of date; command-line centric or full of incomprehensible jargon. Can someone point me to a good clear and logical tutorial on setting up raid 1 that applies to a desktop computer running 10.10.
View 2 Replies View Relatedfind /var/spool/mqueue -group abc -exec rm -rf {} ;Using above command , I delete all the files belong to group abc.Now the problem i face is that the this command gives error that some files are missing . And this error occur because after creating list of files, it pass that list to rm -rf but till that time sendmail process queue and some of files disapper from /var/spool/mqueue.
View 5 Replies View RelatedI just want to know the basics first.
View 3 Replies View Relatedhow to migrate my whole server to larger hard drives (i.e. I'd like to replace my four 1TB's with four 2TB's, for a new total of 4TB instead of 2TB)... I'll post the output from everything (relevant) that I can think of in code tags below.
I'd like to end up with much larger /home and /public partitions. When I first set up raid and then LVM it seemed like it wouldn't be too hard once this day arrived, but I've had little luck finding help online for upgrades and resizing versus simply rebuilding from a failure. Specifically, I figure I have to mirror the data over to the new drives one at a time, but I can't figure out how to build the raid partitions on the new disks in order to have more space (yet mirror with the old drive that has a smaller partition)... don't the raid partitions have to be the same size to mirror?
Ubuntu Server (karmic) 2.6.31-22-server #65-Ubuntu SMP; fully updated
Code:
cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md5 : active raid1 sdd5[1] sdc5[0]
968952320 blocks [2/2] [UU]
[Code].....
I've no experience with IPSec. I've used many times OpenVPN (with static key or certificates x509).
Could anyone suggest me a good tutorial in order to learn IPSec vpn with Linux?
I'm trying to find a command or application that will tell me what drivers my wifi card is using.
I've been googling for a while now and all I get in return for any query I try are articles about folks having wifi troubles.
The Ubuntu install works fine but my Windows install seems incapable of connecting. I've recently realised that I think it all started when I installed 10.04. I think 10.04 might have rewritten the firmware on the wifi module and now Windows can't connect. I'm not sure if this is possible but it is the only solution I can come up with considering that I've now tried 2 different version of Windows and they both have the same problem.
Anyway anyone know of a command or app I can use to discover which driver my card is using at the moment so that I can begin my investigations.
having my data backed up properly, but it's also in different places (e.g. photos and music on separate flash drives), so I have a few rsync's that I can execute manually, drives are mounted. Unfortunately, it gets confusing very quickly, I'd like a simple bash script that goes something like this (this pseudo-code would be most like REXX):
pair.1 = (/dev/sdb1, /dev/mmcblkp01)
pair.2 = (/some/other/device, /yet/another/device)
for i = 1 to #pairs
[code]....
Seems simple enough, but I've never written a bash script and wouldn't know where to start.
i cant connect with 3g modem.I've tried with vodafone and 3 ireland.THE SOFTWARE ICON IS ON SCREEN WITH BOTH MODEMS but when i try to run they cant find autorun files is there a comand to run these files their in media/3connect/autorun.exe.do i need permissions or something
View 8 Replies View RelatedI am searching for a Linux user level command/utility to measure the network bandwitdth used by a specific process by usig its process id.i used different commands like, iperf, ntop, netstat etc, but it doesn't to meet my requirement. i need to observe network bandwidth used by only a specific process .
View 3 Replies View RelatedI am having issues with 3d I am trying to start up a game called auteria but it displays this error "Could not find a compatible opengl display resolution. Please check your driver configuration. (Error: Couldn't find a matching GLX visual)" I am on ubuntu 10.10 could anybody give me a solution on how to fix this issue?
View 5 Replies View Relatedwhen i was about to install turbo c using dosbox in ubuntu on the console i typed the commandas sudo apt-get install dosbox the error occured as E:couldnt find the package dosbox
View 5 Replies View RelatedI have 4 Linux machines with cluster.My target is to find all kind of IP address (xxx.xxx.xxx.xxx) in every file in the linux system remark: need to scan each file in the linux system and verify if the file include IP address if yes need to print the IP as the following
more /etc/inet/file.example1
182.23.2.4
255.255.0.0
10.10.1.1
I am trying to do a find/grep/wc command to find matching files, print the filename and then the word count of a specific pattern per file. Here is my best (non-working) attempt so far:
wc `find . ( -name "*.as" -o -name "*.mxml" ) -exec grep -H HeightResizableList {}` ;
Is there a way to specify to find that I only want text files (and not binary files)? Grep has an option to exclude binary files, so I thought find probably has a similar feature, but I've been unable to find it.
View 2 Replies View Relatedwant to know if Ubuntu provides a command to search for a command having a specific word.e.g.If I know a command contains editor as a substring but don't know exactly what the command is,then is there a way to find that command or the list of commands having editor as a substring.
View 1 Replies View Relatedi've configured my pc using 'sudo pppoeconf' and it worked fine, but when i rebooted my pc and tried to connect using 'pon dsl-provider' it says 'Error: only members of the 'dip' group can use this command'.
I've added myself to the group and tried to connect but to no use.Im able to connect in windows without any issues.
I've been familiarizing myself with the command line and am attempting to connect to a wireless network but am getting stuck at the point wherein I need to put in a password.When I run iwconfig I see my card is wlan0.I definitely know my password as I can connect using a GUI. The encryption method for my network is WPA2.Could someone tell me how I could connect to a WPA2 secured network via a command line, and/or where I went wrong with what I've been trying?
View 1 Replies View RelatedThe find command does not seem to find all files in my directory hierarchy. My home directory is automounted from a server. The command to illustrate this is:find | sed -e 's/^.///' | sed -e 's//.*//' | sort -uThe result misses several directories. Likewise, a find of a particular file, like:find . -iname *sample* -printwhere sample_file.txt resides in one of the directories that is missing in the first find command, finds nothing
View 4 Replies View RelatedI have a question about using crontab with /etc/crontab...
I had a cron job that I needed to run as root. At the time I thought that sticking it in /etc/crontab would be a good idea. However, I used the crontab command to edit /etc/crontab, which I guess is not standard procedure? Specifically, I configured /etc/crontab as my local user's crontab (i.e. sudo crontab /etc/crontab) then added my cron job as I would a local user crontab (i.e. sudo crontab -e).
Originally, my cron job looked like this:
30 * * * * root /my/batch/script &> /dev/null
After adding the new cron job I started seeing errors. Something to the effect of "can't find command root" or something similar. So I removed the 'root' user definition from the cron job and the job started running fine. However, because this is /etc/crontab, there are other system related cron jobs that have been defined to run under the root account (e.g. "17 * * * * root cd / && run-parts --report /etc/cron.hourly" runs as root, etc.). So these pre-existing system cron jobs, which up until now have been running smoothly, are now generating "can't find command root" errors. But I think that the system cron jobs _are_ successfully being run someplace because logrotate seems to be working.
So what I _think_ is happening is that /etc/crontab is being run twice: once as the system crontab, and once as my sudoed local user's crontab. When I run crontab -l I see nothing, but when I run sudo crontab -l I can see the contents of /etc/crontab. I am reluctant to delete my sudoed local user's crontab, because then in the process I would be deleting the system crontab, and I do not know how I should restore the system crontab's contents. (I am still not sure as to the most appropriate way to edit the system crontab).
How can I get out of this mess? I want /etc/crontab to go back to the way it was before--running _once_ as the system crontab. As for my new cron job, I'm willing to reconfigure it anywhere so long as I am still able to run it as root. Any ideas? (I am using Ubuntu 8.04 Server LTE)
I know how to search for normal files but can you let me know " How to search for 5 setuid files on the system. Also explain, for each file, why setuid mechanism is necessary for the command to function properly"
View 1 Replies View Relatedam new to linux and trying to find a file in sub directories using find command as:find .-name *.jpg -type fBut I am unable to get the result as find command is not permitted by the server administrator.Is there any way to find files without using find command.
View 14 Replies View RelatedI tried to install ndiswrapper , but its showing error,while executing make command
make[1]: Leaving directory `/usr/src/linux-source-2.6.35.8'
make: *** [LINUX] Error 2
