rcp -r || cp -r


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting rcp -r || cp -r
# 1  
Old 01-02-2013
Ubuntu rcp -r || cp -r

what different between two instruction
cp -r
rcp -r

Last edited by tamer11007; 01-10-2013 at 12:51 PM..
# 2  
Old 01-02-2013
Quote:
Originally Posted by tamer11007
what different between two instruction
cp -r
rcp -r
"cp"=copy, "rcp"=remote copy. Does that answer your question?


Quote:
Originally Posted by tamer11007
What is problem in cp -r instruction to copy the root directory?
you have to copy it somewhere. This "somewhere" will be included in "cp -r"s scope because "cp -r" works recursively. If you don't take extra care and simply issue

Code:
cp -r / /somehwere

cp will first copy everything to "/somewhere", then create a copy of "/somewhere" in "/somewhere/somewhere", then create a copy of "/somewhere/somewhere" in "/somewhere/somewhere/somewhere", ... It will create an infinite recursion until at some point it will simply exhaust the disk space. This is probably not what you had in mind when you issued the command.

Quote:
Originally Posted by tamer11007
What can use another instruction cp-r to copy the root directory?
Either use "rcp", because the destionation will be on another machine and therefore not interfere or use "tar" and a special file mask so that the resulting tar-file is not included in "tar"s scope - or something similar. In general: avoid the recursion leading to the destination being included in the target.

I hope this helps.

bakunin
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

RCP command

hi, When i use RCP command to copy filr from a different servers, it is showing as connection refused??? ca anyone help me out??? thanks, Arun Manas:b: (2 Replies)
Discussion started by: arunmanas
2 Replies

2. UNIX for Dummies Questions & Answers

RCP Failure

I HAVE A PERL SCRIPT WHICH RCP files from one server to another. The script is not having any issues for years and it is running for more than 3 years . Last week it had failed with error "Command timed out " error. Please help me out (2 Replies)
Discussion started by: praviper
2 Replies

3. Shell Programming and Scripting

rcp command

Hi friends, Am trying to push a file on a remote server to my local host but getting "permission denied." error. Please let me know the basic steps that i need to have a look at in order to let the "rcp" command work successfully. Pl. Note: Both the servers belong to Sun Solaris 10... (5 Replies)
Discussion started by: Srinivas_Hari
5 Replies

4. Shell Programming and Scripting

rcp problem

Hi, When I try to use rcp I donīt recieve the file I try to fetch. I donīt get any error message, it just execute and as far as I can tell doesnīt do anything. I have no problem with using remsh to list the directory. remsh 132.196.133.185 -l root ls xdpyinfo: unable to open display... (7 Replies)
Discussion started by: mr_andrew
7 Replies

5. HP-UX

rcp command

Hi, Good day to you all. I am trying to use rcp command to transfer some files on the remote machine. I have already setup .rhosts on my server and on the remote machine. When I do rcp I get this error message rcmd_af: Lost connection Is anybody familiar with this one? Thanks in advance. ... (3 Replies)
Discussion started by: sodapop
3 Replies

6. UNIX for Dummies Questions & Answers

RCP problems

Hi! Daily, one of our RedHat Enterprise servers tries to get some files from other RedHat Enterprise server through rcp. Strangely, only the smallest files (about 80K) are transferred, the larger ones (about 40Mb) are not. The rcp doesn't issue any error message, only keeps waiting and waiting... (0 Replies)
Discussion started by: Daishi
0 Replies

7. Solaris

rcp not working

I applied patch 108993-65 on two servers (5.8) and now I am unable to rcp to either machine. Getting "permission denied". (3 Replies)
Discussion started by: shorty
3 Replies

8. UNIX for Dummies Questions & Answers

help on rcp,exportfs

i need some help on remote file copyieng.the queeries are: 1:> m working on a machine say(abc) and i want to copy a directory(yes a directory) from a remote machine. so what would be the command. 2:> do in need to login on the source machine from where i want to copy a directory. 3:> is it... (0 Replies)
Discussion started by: mxms755
0 Replies

9. UNIX for Dummies Questions & Answers

Rcp

I am trying to set up RCP so root can access a few machines for file transfer. On the target machine, I have set up a .RHOSTS file that looks like: 10.33.1.59 root However when I try to use RCP to copy a file to this machine, I get permission denied. Is it possible since another user is... (1 Reply)
Discussion started by: hshapiro
1 Replies

10. Cybersecurity

About rcp at Windows NT OS.

Now I want to copy a directry from Sco Unix at Windows NT 4.0 with Sp6. But I always meet the Permision Refuse error. I need your help. GOD Thank you very much. (1 Reply)
Discussion started by: livic
1 Replies
Login or Register to Ask a Question