Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

copyin(9r) [osf1 man page]

copyin(9r)																copyin(9r)

copyin - General: Copies data from a user address space to a kernel address space SYNOPSIS
int copyin( caddr_t user_src, caddr_t kernel_dest, u_int bcount ); ARGUMENTS
Specifies the address in user space of the data to be copied. Specifies the address in kernel space to copy the data to. Specifies the number of bytes to copy. DESCRIPTION
The copyin routine copies a specified amount of data from the unprotected user address space to the protected kernel address space. RETURN VALUES
Upon successful completion, copyin returns a value of 0 (zero). Otherwise, it can return the following error: The address in user space that you specified in the user_src argument cannot be accessed. SEE ALSO
Routines: copyinstr(9r), copyout(9r) copyin(9r)

Check Out this Related Man Page

COPY(9) 						   BSD Kernel Developer's Manual						   COPY(9)

copy, copyin, copyout, copystr, copyinstr -- kernel copy functions SYNOPSIS
#include <sys/types.h> #include <sys/systm.h> int copyin(const void *uaddr, void *kaddr, size_t len); int copyout(const void *kaddr, void *uaddr, size_t len); int copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done); int copyinstr(const void *uaddr, void *kaddr, size_t len, size_t *done); DESCRIPTION
The copy functions are designed to copy contiguous data from one address to another. All but copystr() copy data from user-space to kernel- space or vice-versa. The copy routines provide the following functionality: copyin() Copies len bytes of data from the user-space address uaddr to the kernel-space address kaddr. copyout() Copies len bytes of data from the kernel-space address kaddr to the user-space address uaddr. copystr() Copies a NUL-terminated string, at most len bytes long, from kernel-space address kfaddr to kernel-space address kdaddr. The number of bytes actually copied, including the terminating NUL, is returned in *done (if done is non-NULL). copyinstr() Copies a NUL-terminated string, at most len bytes long, from user-space address uaddr to kernel-space address kaddr. The num- ber of bytes actually copied, including the terminating NUL, is returned in *done (if done is non-NULL). RETURN VALUES
The copy functions return 0 on success or EFAULT if a bad address is encountered. In addition, the copystr(), and copyinstr() functions return ENAMETOOLONG if the string is longer than len bytes. SEE ALSO
fetch(9), store(9) BSD
January 7, 1996 BSD
Man Page

14 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Copying a file

Can anyone help me with simple problem..... I am newie bee UNIX. I want to copy a file from drive A to /temp directory on drive C. How do i do that.? Thank you (14 Replies)
Discussion started by: jackpotp
14 Replies

2. UNIX for Dummies Questions & Answers

Copying files with the latest date

Hi All, I have a situation where I need to copy the files having the latest date. For example I have a file by name bas100e1_jun05. I need to copy it to bas100e1. But when a file by name bas100e1_jul05 is put in the same directory the script should copy the file having the latest month which... (34 Replies)
Discussion started by: shashi_kiran_v
34 Replies

3. Shell Programming and Scripting

Copying some part of file

Hey friends, Here I am with another query. I have a TXT file. Foe an example EX ID : B-Mezine .... ... ... Some lines of text (Not fixed in length n no of lines).. ... ... .. END EX ID Some blank lines in between two records(Not fixed in numbers) EX ID : B-Mezine .... ...... (20 Replies)
Discussion started by: anushree.a
20 Replies

4. Shell Programming and Scripting

Copying latest file into a folder

Hello all, this is my first post while i am trying to understand unix. I would basically like to know if i can do this: Lets say i have a folderA and folderB And i save something in folderA Can i make a script that checks folderA latest file, then compares it with the date of latest file in... (16 Replies)
Discussion started by: takissd
16 Replies

5. Shell Programming and Scripting

copying columns with headers' specific pattern

Hi friends, I have data in tab separated file with headers like this : *sml1 *sml3 *smln7 smfk9 smllf56... Which shell command I should use if i want to extract entire columns that have header names beginning with "*" ? i want to copy these columns into another file. Thanks, (14 Replies)
Discussion started by: jacks
14 Replies

6. Red Hat

Parsing a linux file and formatting it.

Hi, I have a linux file that has data like this.. REQUEST_ID|text^Ctext^Ctext^C REQUEST_ID|text^Ctext^C REQUEST_ID| REQUEST_ID| REQUEST_ID|text^Ctext^Ctext^Ctext^Ctext^Ctext^C.... Where ever I see a ^C character, I need to copy the corresponding REQUEST_ID and that part of the text to a new... (17 Replies)
Discussion started by: charithainfadev
17 Replies

7. Shell Programming and Scripting

Copying of multiple columns of one table to another by mapping with particular strings.

Hi, I would like to copy some columns from a particular file by mapping with the string names. i am using the .csv file format. my one file consist of 100 of columns but i want only particular 4 columns such as ( First_name, Middle_name,Last_name & Stlc). but they are listed in many files... (15 Replies)
Discussion started by: dsh007
15 Replies

8. Shell Programming and Scripting

Copying corresponding entries based on search

Hi Guru's I need some help to accomplish the below. I have two files, file 1 has ldap entries with one of its parameter cn. I have one more file with cn and corresponding row id. The out put should get the cn from file1 search for the cn in file2 and get the value of id and add the id entry in... (19 Replies)
Discussion started by: Samingla
19 Replies

9. Shell Programming and Scripting

Copying all the .sh files into a tar file

Hi All , I need to tar all the .sh files in a server along with the path . Please let me know is there any way this can be accomplished . Need to grep through all the directories and sub directories in a server and tar all the .sh scripts . (16 Replies)
Discussion started by: saj
16 Replies

10. Shell Programming and Scripting

Copying files with a specific pattern

Hi All I am trying to copy files from one location to another and given below are some sample ones: aaa_bbb_ccc_ddd_cost_code_20140330.gz aaa_bbb_ccc_ddd_revenue_zone_20140329.gz aaa_bbb_ccc_ddd_benefit_extract_20140330.csv.gz aaa_bbb_ccc_ddd_profit_zone_20150509.csv.gz... (17 Replies)
Discussion started by: swasid
17 Replies

11. UNIX for Dummies Questions & Answers

Script for copying files from windows to UNIX

Hi guys Let me start by saying that I'm a newbie, so feel free to point me to any good reading material. What I wanted to do is copy some specific files from windows to unix. Let me elaborate my view. Let's say I have some directory tree in unix, CHO-species/C2H1O1/ VAS-S005-001-Ru444/OPT-0/,... (16 Replies)
Discussion started by: saleheen
16 Replies

12. Shell Programming and Scripting

Copying a file with UTF char on UNIX server

Hi, I need to run a SQL which check for special UTF char in DB. When I try to copy that in UNIX file it changes it to some wierd chat. How can in retain the UTF chars in my script? e.g. ο|π|ρ|σ|τ|υ|φ|χ|ψ Any help will be appriciated. Thanks, (14 Replies)
Discussion started by: varun22486
14 Replies

13. Shell Programming and Scripting

To check the file and remove header before copying

Hi Guys, I have below directory where there are certain files. Something like below country_dir aus_01.txt nz_01.txt aus_02.txt bd.txt property.txt aus nz bd I need to remove the header of the file which ends with _01.txt while copying from country directory to another... (15 Replies)
Discussion started by: rohit_shinez
15 Replies

14. UNIX for Beginners Questions & Answers

Bash to append array value to file before copying

The bash stores each uniqueid in an array and then passes them to %q to get the unique path. That seems to work what I am having trouble with is renaming each .png with the unique value in %q. I thought it was working but upon closer inspection, a .png file is being sent to scp.... but only 1 and... (21 Replies)
Discussion started by: cmccabe
21 Replies