Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

ram(4) [debian man page]

RAM(4)							     Linux Programmer's Manual							    RAM(4)

NAME
ram - ram disk device DESCRIPTION
The ram device is a block device to access the ram disk in raw mode. It is typically created by: mknod -m 660 /dev/ram b 1 1 chown root:disk /dev/ram FILES
/dev/ram SEE ALSO
chown(1), mknod(1), mount(8) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 1992-11-21 RAM(4)

Check Out this Related Man Page

TTYS(4)                                                      Linux Programmer's Manual                                                     TTYS(4)

NAME
ttyS - serial terminal lines DESCRIPTION
ttyS[0-3] are character devices for the serial terminal lines. They are typically created by: mknod -m 660 /dev/ttyS0 c 4 64 # base address 0x3f8 mknod -m 660 /dev/ttyS1 c 4 65 # base address 0x2f8 mknod -m 660 /dev/ttyS2 c 4 66 # base address 0x3e8 mknod -m 660 /dev/ttyS3 c 4 67 # base address 0x2e8 chown root:tty /dev/ttyS[0-3] FILES
/dev/ttyS[0-3] SEE ALSO
chown(1), mknod(1), tty(4), agetty(8), mingetty(8), setserial(8) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 1992-12-19 TTYS(4)
Man Page

14 More Discussions You Might Find Interesting

1. Programming

Need some help with this...

I am trying to implement some kind of a which program. I could get the PATH environment variable and was able to tokenize it. I have a list of paths in tokens. Now, I have the name of the shell command. How would I search the tokens and display where the command was found? (41 Replies)
Discussion started by: Legend986
41 Replies

2. Programming

When I am writing my own interpreter...

While trying out my hand at writing an interpreter, I was wondering about a a few issues one of which is the following: When I run a command such as jobs in the shell, I get a list of all the background jobs that are running... But if I need my interpreter to run that command, how would I be doing... (34 Replies)
Discussion started by: Legend986
34 Replies

3. Programming

regarding socket & mssage queue

hello , I have to write an application in which I had to implement both Socket Comminication and IPC- message queues. and that process should run in Infinite loop as well I had to continously check and send data through both type of communications... What should I use to implement it... I had... (34 Replies)
Discussion started by: arunchaudhary19
34 Replies

4. Programming

C Brain Teaser

Dear Gurus, I have encountered a C question, which I thought of sharing with you. This question was asked by one of my technical training staff...Though my training was over I'm still thinking of a solution for this.. Write a C program to do a small task(lets say just simply printing a "Hello... (34 Replies)
Discussion started by: vrk1219
34 Replies

5. Programming

semaphore access speed

I am investigating some locking scheme using semaphores. To evaluate basic system speed I run a loop of getting some semaphore info and display it: while : ; do ./semshow; done > res.txt I ran this on 3 boxes - two similar modern HP XEON boxes, one running SCO OpenServer 5, the other is... (46 Replies)
Discussion started by: migurus
46 Replies

6. Programming

write() issue during a low level hdd access

Hi, I am trying to write zeroes to the hdd using a c program. I don't want to use the dd or ddrescue or any such inbuilt program because of reasons like real time progress, writing custom patterns. (my program is more like an erasure application, but does only zero fill). here are the steps... (35 Replies)
Discussion started by: sponnusa
35 Replies

7. Programming

Masking Password with *'s

So I've been working on this for some time now and can't seem to find the solution that works for me. I'm working in C/Unix. Basically, I want to take a user input and output something different. For example, I want to take a password and output *'s. In another instance, I want to take inputed... (35 Replies)
Discussion started by: bigdrock44
35 Replies

8. Programming

help with data type sizes

i'm using a C program and running it on a linux server, i got 2 adressess of 2 variables, and 2 addresses of 2 chars, and compared it. and got the size of a int and the size of a char. why is a size of a int (4 bytes) bigger then the size of a char (1 byte)? also if i do &a-&b i get 1, but if i... (30 Replies)
Discussion started by: omega666
30 Replies

9. Programming

AIX calling WINSOCK during e-mail - normal?

Hey everyone, I'm completely stumped on this. An AIX machine I'm working on is attempting to send email, but the SMTP connection is failing. I have no idea what this code does or if it should even work. If someone could give me a hand, or a suggestion on what else to use, I would appreciate... (54 Replies)
Discussion started by: ctote
54 Replies

10. Programming

question about popen in C

does popen print out the executed string result in stdout, or just evaluate it and not print the result? (30 Replies)
Discussion started by: omega666
30 Replies

11. Programming

Incompatiblity of the code due to CC compiler version mismatch.

Incompatiblity of the code due to CC compiler version mismatch. I have a machine with Machine A-- Operating System:SunOs 5.8 Generic_117350-45 sun4u sparc SUNW,Ultra-80(solaris 5.8) CC Compiler:CC: WorkShop Compilers 4.2 16 Jun 1998 C++ 4.2 patch 104631-07 we have compiled C++... (36 Replies)
Discussion started by: Revathi R
36 Replies

12. Programming

Appending a column in xlsx file using Python

Is there a way to append an existing xlsx worksheet to add data from a text file ? I have an excel file for which I need to manipulate the first worksheet based on a text file. I match the text file to the xlsx and write the 'Scores' column in the xlsx sheet and save the workbook. For those ... (43 Replies)
Discussion started by: nans
43 Replies

13. Web Development

Notes with Ravinder on Badging System Development Part II

Part II: Current PHP file Beta 73 Not Optimized: <?php $version = 73; $query = "SELECT * FROM " . TABLE_PREFIX . "user WHERE userid='" . $uid . "'"; $usertable = $db->query_read_slave($query); $modaluser = $db->fetch_array($usertable); $modaluser = gmdate("d F Y", $modaluser); $modaluser... (48 Replies)
Discussion started by: Neo
48 Replies

14. Web Development

Mod_rewrite to handle paths ?

I hope someone can help. I somewhat know what a mod_rewrite does which is URL rewiring. What I don't know is how to make the mod_rewrite to handle paths ? Can this be why an AngularJS file is not being loaded ? (36 Replies)
Discussion started by: MaxtheCat
36 Replies