I got some problems and need your help.
In school, my codes are writeen under UNIX system (Solaris10/SUN), now I need to transfer those codes to Linux (Redhat5). But after I directly copy to Linux, it shows many errors and warnings.
Does anyone know which codes I need to modify to specifily suit for UNIX? I am not familiar with those systems and hope to get your kind help.
Where can i find a list of cronjob return codes for linux/unix
View 1 Replies View RelatedI am running shell command through C program using system() routine.
I am executing "opcontrol --status" an executable using the this routine and I get the following error. access: unix error (2) No such file or directory
But when I give the complete path to the executable it runs perfectly.
The executable is installed in "/usr/local/bin/" And the path variable has this path.
I think I put this in the wrong place
View 1 Replies View RelatedCan anyone answer me the color code of the linux file system?
Especially, for those which have different colors in the background also like some have green background colors and are written in green some have yellow background and are written in black,why is it so?
Also please explain me the color code of other also.
I've got a 'nested' for loop which has a grep in it, if the grep fails there's no output - however the error code is still $0 and the second for loop is still entered, there's also a grep in the second for loop.I guess ultimately what i need to know is whether there's a way of making grep generate an error code. when no results are found?
View 14 Replies View Relatedi have two doubts
1) i downloaded the latest linux kernel in hope that i will find the codes for the operating system the os but i cant locate any.so can any0ne tell me from where can i find what i am looking for?
2) c language used in the package i downloaded is though very close to the c i studied but there are places where it becomes tough for to comprehend the real significance of the lines. eg i never knew rhere is Display() a pre-defined function but i saw it somewhere as predefined.
I have downloaded whole linux source codes of fedora in a dvd. There are several rpm packages and lots of directories in it. I want to load all source codes to version control system (svn or cvs) which is loacated in a server and develop it step by step .During this time I want to build my own distribution. So I need to know how to build all these packages at once. Is there anyone who can explain "how to do" to me
View 1 Replies View RelatedI wrote a c++ program but for security reasons I need to make sure that no one can read my codes by my ".out" files. I did everything I could. But everyone can see it by "strings Alpha.cpp".I heard that g++ has some options to do so.
View 7 Replies View RelatedI am a student taking part in a comptition. We have a set of questions to complete within today. Can anyone please help me out with it. I have a custom written "echo" program in C, running on port number "1220" which echoes back the first 16 characters of whatever is given as the first command line argument. But somehow, my brother had got unauthorized remote root access. The program is given below. How did he do it? Please give the exploit code and explain how it works.
#include
#include
void echo(char* input) {
[code]....
I wish to implement some part of my codes to use the GPU of my graphic card but I have no idea whether GNU as already implemented it (as for OpenMP). I mean, there are PGI Fortran compiler which embedded CUDA but I figure it's not free. I also wonder if that works only with ATI graphic cards or if for instance I can use my Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller.
View 4 Replies View RelatedOne of the feature in my application involve changing of hardware setting. This require the user to be root or have administrative right.Before my application enable that feature, I want it to check whether the user is "root" or not, or whether user use "sudo" command to run the application or not, or whether the user has administrative rights or not.What are the codes or library that can do this?
NOTE: Sometimes, advanced linux user may set the user id of root to something else other than 0. So, getuid() may not be helpful in this case.
I need a script that can print some series of strings in colors based in the information of a file, for simplicity let's say it only does:
Code:
#!/bin/bash
printf "e[1;31;32m%-10se[00m" "OK"
When you execute this in the command line it prints a bold green 'OK'. So far so good.
Now, I need to check the output of the script over time using the command watch. The problem then arises. watch seems to ignore the escape codes and just prints:
Code:
[1;31;32mOK [00m
Is there any way to fix this?
If not, how can I check inside the script if it is being executed from a command? (watch in this case) So I can print without color for those cases.
A simple TCP based chat server could allow users to use any TCP client (telnet, for example) to communicate with each other. For this question you should consider a single process, single thread server that can support exactly 2 clients at once, the server simply forwards whatever is sent from one client to the other (in both directions). Your server must not insist on any specific ordering of messages as soon as something is sent from one client it is immediately forwarded to the other client. As soon as either client terminates the connection the server can exit
View 4 Replies View Relatedi want a process that can operate as both a TCP echo server and a UDP echo server. The process can provide service to many clients at the same time, but involves a single process that does not start up any other threads.
View 3 Replies View Relatedwe have a server running with Suse linux many years. Meanwhile we changed server hardware about 4 times, mostly also updating to newest Suse version. We used to copy group, passwd and shadow to a backup medium, installed the new system and restored those files onto the new system and all was running fine. Now, some weeks ago we installed 11. on new hardware and after restoring those 3 files after rebooting the system hangs when starting GUI. I can boot into runlevel 3 and login with no problem, but when I boot into runlevel 5 mouse and keyboard are frozen. Also when starting GUI from runlevel 3 with startx mouse and keyboard immediately freeze. If I restore the files group, passwd and shadow as they came from fresh new installation I can reboot and login in runlevel 5 without problems.
OK, if I compare the userlist, as it is generated bei installation,there are some usernames I formerly not had in older Suse versions. I don�t know if this can make problems? I tried to edit the files, to combine the system users from 11.2 with the list of local user names from the old system but without success, again the mouse and keyboard freeze.So some questions arise:1) Why now mouse and keyboard freeze in xsystem, when there are changes in the user list (but only in runlevel 5)2) What is the correct way to save and restore users and groups from old to new system. I googled several hours but did not find a smart way. Maybee someon can point me to a link or a howto where I find the solution
Whats the drifference between unix and linux senior?..
View 7 Replies View Relatedmy instructor gave me a project in c programming language, the probelem i don't have a c program combiler and i don't have a unix os on my computer, and my knowledge in c program is soo weak i took it years ago, i have this code but it does't compile on Dev-C++ on Windows OS, so if you just help me out with this program:
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
[code]....
I want to read the line in the text file and get the string in the file and paste it in the directory column
for example i have a line like /ftp/prod/SWC1407.DOC
from this 1407 should be parsed and appended at the end of the move command
mv /ftp/prod/SWC1407.DOC /nfp/1407
I wish to create my own shell for my operating systems project in college...
My professor has asked me to make sure that my shell can execute at least 30 or 40 commands... I have around a month's time
I have seen endless source codes in the net, I'm not able to understand any of it
How do i get about doing it?
How simulate unix kernel in c++..or give me a link....
View 2 Replies View Relatedwhat is the best/accurate way to get the process id in java code in order to write to the log file. To be specific: I am using avalon logkit for logging. I really cannot find a way to write the process id to each line in the log.
View 1 Replies View RelatedWhat are the directories and files in Unix file-system that has default user permission set. For eg. home directory of a user can't be seen by the other users on the system without his permission. In the same way what are the other directories that by default has user permission set at the time user account has opened. Eg. /etc,/bin or what
View 3 Replies View RelatedHow can I display every man page available on a unix system? I want to list them all in an easy manner without manually digging up all the search paths, etc.
View 1 Replies View RelatedAt the moment I am using Hummingbird Exceed on a windows PC to display X windows from a Unix server. The actual Exceed tool I use is called 'hwm' which I believe is basically an pc based X Windows manager. I do not need to configure anything other than the client computer name, IP address and screen definition and the server will then allow a connection and display the X windows on the client. I was wondering if there is an equivalent application I can run using Ubunto as a client insted of a Windows PC?
View 1 Replies View Relatedmplement the read system call in unix...i want the code for read system call...
View 6 Replies View RelatedThere are C, C++, Java, Perl, Python, PHP, and some other programming orand scripting languages for a Unix / Linux Distro. On a scale of 1 - 10, I rate myself on:
5 for C / C++
5 for Java
7 for PHP
2 for Perl
When I look for a Unix job I am often asked if I know C / C++, Perl or Java. Well, they mostly look for C / C++ + Unix or Perl / Python + Unix or Java + Unix combinations. That is the trend here in India. When they advertise for C / C++ + Unix they also mean Real Time System, Kernel (Modules), and Device Drivers Development. I don't know how to do those things in C / C++. But I must say that I love C / C++ and anything else no matter how attractive or easy it could be doesn't look that much challenging to me. So, which should I take now to add to my skills set and be more productive in terms of System Administration and Application Development and Support?
In C/C++ and Java, though I know them, I don't get to work in my current job. However, I often use Shell Script (Bash) and PHP and so I am finding Perl easy because the basics of Computer Programming that I learnt by learning C and C++ and Java have made it easy for me to understand any programming language.
I have a hard time figuring this out. I need to replace the date formats of arrival date(column 31-40) and departure date(column 42-51) and I need 2 outputs. I cannot even figure out how to start.code...
View 6 Replies View Relatedcreating the below unix script to run in oracle database .I need a script which should do the following things.
1. The script should insert row count of a table from one database(A) into table (AB) in another database(B).
2. The script should update tow count of the similar table and tablespace from database (B) in to a table AB.
3. The script should update the status column of the table AB as: 'Y' if the rowcount of the table@A and rowcount of the table@B matching. or else it should update 'N'
I'm trying to mount a folder located at 10.0.0.1:/pxe/ on eth1 but I'm not sure how to do this with two NICs enabled. The command mount 10.0.0.1:/pxe/ /mnt/pxe/ works fine when I only am using the one NIC the appropriate machine is on, but how can I specify to use eth1 when eth0 is also enabled?
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