Sponsored Content
Full Discussion: Perl copy vs system cp
Top Forums Shell Programming and Scripting Perl copy vs system cp Post 302383897 by matrixmadhan on Friday 1st of January 2010 05:05:22 PM
Old 01-01-2010
Quote:
if (system ("cp $filename, $dest_path") != 0) {
<do something>;
} else {
print "ERROR: Cannot copy\n";
}
Related to this thread but slightly unrelated to this ...

when using system command ( if that is unavoidable in some scripts, I know there are equivalents for almost everything ), always use the absolute path of the command like /bin/cp and not just cp

cp could be simply aliased to something else and you are not executing 'cp' but something else.
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

on solaris best utility to copy a file system?

Hi, - on a solaris box what is the best utility to copy a whole file system from one place to other? - the aim of the operation is to place the contents of the whole file system to other file system within the discs cp ? - cpio? - tar? - what about file systemes containing symbolic links ?... (1 Reply)
Discussion started by: JAKEZ
1 Replies

2. Solaris

System copy with flarcreate

Hi, i'm trying to make a system copy from one server to another (solaris 9), they have the same configuration. I've tried to create a flash archive using the flarcreate but the flash file size is 5.06 approx. and the method the flarcreate is using is CPIO and he cannot handle sizes over 4 GB. Is... (2 Replies)
Discussion started by: pasalagua
2 Replies

3. Shell Programming and Scripting

copy directory structure to a system on the network

I am trying to write a script which has to copy the directory structure from my system to another system on the network. But I dont want the files to be copied. I think I have to start with copying all subdirectories names in a directory to a system on the network. Here's the case: Source... (1 Reply)
Discussion started by: firefox211
1 Replies

4. Programming

Copy a file using UNIX-system calls

#include<unistd.h> #include<sys/types.h> #include<sys/stat.h> #include<fcntl.h> #include<stdlib.h> int main( int argc,char *argv ) { char buf; int sourcefile,destfile,n; if(argc!=3) { write(STDOUT_FILENO,"prgm1 <sourcefile> <destination file>\n",50); ... (6 Replies)
Discussion started by: c_d
6 Replies

5. UNIX for Dummies Questions & Answers

How to copy my system hdd usb stick from 4GB to 8GB ?

Hi, my router is my Linux embedded device. I have system installed on HDD 4GB usb stick, part1 swap, part2 /opt , part3 data. I need to copy my system to new HDD 8GB usb stick. What is a way for 4GB > 4GB HDD and what for 4GB > 8GB As I remeber, I can copy image of my 4GB HDD usb stick... (7 Replies)
Discussion started by: jack2
7 Replies

6. Shell Programming and Scripting

File Copy Perl

Hi Could you please help me on this I have folder called D:\Data in which we have 20 files coming daily and needed all 20 files to copy into D:\Target ,as i am new to PERL, i did nt know how to use this I googled sme of the code and done the copy script,it is throwing error like we do... (1 Reply)
Discussion started by: vaas
1 Replies

7. AIX

Copy huge files system

Dear Guy’s By using dd command or any strong command, I’d like to copy huge data from file system to another file system Sours File system: /sfsapp File system has 250 GB of data Target File system: /tgtapp I’d like to copy all these files and directories from /sfsapp to /tgtapp as... (28 Replies)
Discussion started by: Mr.AIX
28 Replies

8. UNIX for Advanced & Expert Users

Grub - how to boot a copy of Linux (full system backup)

Hi All, I have successfully backup & restore (using tar) one of my Debian Lenny Servers. On the restore server (standby machine), everytime i have to erase the disk & extract the tar backup. I want to extract the tar on the running restore server on a directory for e.g /systembackup-01,... (11 Replies)
Discussion started by: coolatt
11 Replies

9. Shell Programming and Scripting

Copy files with pattern from ext4 to cifs file system

Hi I have a shell script to copy a pattern of files from Linux to Windows Filesystem. When i execute the below command cp -av TOUT_05-02-13* Windows/Folder `TOUT_05-02-13-19:02:37.tar.gz' -> `Windows/Folder/SYSOUT_05-02-13-19:02:37.tar.gz' cp: cannot create regular file... (5 Replies)
Discussion started by: rakeshkumar
5 Replies

10. Solaris

Basic question regarding root file system copy to another disk

Hello, I am creating a new disk using the following command: dd if=/dev/zero of=/export/home/ramdisk/0 bs=512 count=4096k after creating the disk, i tool a ufsdump of a solaris 10 filesytem (disk size 512MB) ufsdump -cvf /export/home/ufsdump/sol_orig /and then restored the dump files onto... (10 Replies)
Discussion started by: Zam_1234
10 Replies
File::NCopy(3pm)					User Contributed Perl Documentation					  File::NCopy(3pm)

NAME
File::NCopy - Deprecated module. Use File::Copy::Recursive instead. Copy file, file. Copy file[s] | dir[s], dir SYNOPSIS
use File::NCopy qw(copy); copy "file","other_file"; copy "file1","file2","file3","directory"; # we want to copy the directory recursively copy 1,"directory1","directory2"; copy 1,"file1","file2","directory1","file3","directory2","file4", "directory"; # can also use references to file handles, this is for backward # compatibility with File::Copy copy *FILE1,*FILE2; copy *FILE1,"file"; copy "file1",*FILE2; # we don't specify 1 as the first argument because we don't want to # copy directories recursively copy "*.c","*.pl","programs"; copy "*", "backup"; use File::NCopy; # the below are the default config values $file = File::NCopy->new( 'recursive' => 0, 'preserve' => 0, 'follow_links' => 0, 'force_write' => 0, 'set_permission' => &File::NCopy::u_chmod, 'file_check' => &File::NCopy::f_check, 'set_times' => &File::NCopy::s_times, ); set_permission will take two file names, the original to get the file permissions from and the new file to set the file permissions for. file_check takes two parameters, the file names to check the file to copy from and the file to copy to. I am using flock for Unix systems. Default for this is &File::NCopy::f_check. On Unix you can also use &File::NCopy::unix_check. This one compares the inode and device numbers. set_times is used if the preserve attribute is true. It preserves the access and modification time of the file and also attempts to set the owner of the file to the original owner. This can be useful in a script used by root, though enyone can preserve the access and modification times. This also takes two arguments. The file to get the stats from and apply the stats to. On Unix boxes you shouldn't need to worry. On other system you may want to supply your own sub references. $file = File::NCopy->new(recursive => 1); $file->copy "file","other_file"; $file->copy "directory1","directory2"; $file = File::NCopy->new(u_chmod => &my_chmod,f_check => &my_fcheck); $file->copy "directory1","directory2"; DESCRIPTION
File::NCopy::copy copies files to directories, or a single file to another file. You can also use a reference to a file handle if you wish whem doing a file to file copy. The functionality is very similar to cp. If the argument is a directory to directory copy and the recursive flag is set then it is done recursively like cp -R. In fact it behaves like cp on Unix for the most part. If called in array context, an array of successful copies is returned, otherwise the number of successful copies is returned. If passed a file handle, it's difficult to make sure the file we are copying isn't the same that we are copying to, since by opening the file in write mode it gets pooched. To avoid this use file names instead, if at all possible, especially for the to file. If passed a file handle, it is not closed when copy returns, files opened by copy are closed. copy Copies a file to another file. Or a file to a directory. Or multiple files and directories to another directory. Or a directory to another directory. Wildcard arguments are expanded, except for the last argument which should not be expanded. The file and directory permissions are set to the orginating file's permissions and if preserve is set the access and modification times are also set. If preserve is set then the uid and gid will also be attempted to be set, though this may only for for the men in white hats. In list context it returns all the names of the files/directories that were successfully copied. In scalar context it returns the number of successful copies made. A directory argument is considerd a single successful copy if it manages to copy anything at all. To make a directory to directory copy the recursive flag must be set. cp Just calls copy. It's there to be compatible with File::Copy. new If used then you can treat this as an object oriented module with some configuration abilities. recursive If used as an object then you can use this to set the recursive attribute. It can also be set when instantiating with new. The other attributes must all be set when instantiating the object. If it isn't specified then directories are not followed. preserve Attempt to preserve the last modification and access time as well as user and group id's. This is a useful feature for sysadmins, though the access and modification time should always be preservable, the uid and gid may not. follow_links If the link is to a directory and this attribute is true then the directory is followed and recursively copied. Otherwise a link is made to the root directory the link points to. eg. /sys/ is a link to /usr/src/sys/ is a link to /usr/src/i386/sys then the link /sys/ is actually created in the source directory as a link to /usr/src/i386/sys/ rather than /usr/src/sys/ since if the link /usr/src/sys/ is removed then we lost the link even though the directory we originally intended to link to still exists. force_write Force the writing of a file even if the permissions are read only on it. EXAMPLE
See SYNOPSIS. BUGS
When following links the target directory might not exactly the same as the source directory. The reason is that we have to make sure we don't follow circular or dead links. This is really a feature though the result may not quite resemble the source dir, the overall content will be the same. :) From Ken Healy (Version 0.34) On Win32, The use of backslash for paths is required. AUTHOR
Gabor Egressy gabor AT vmunix.com Copyright (c) 1998 Gabor Egressy. All rights reserved. All wrongs reversed. This program is free software; you can redistribute and/or modify it under the same terms as Perl itself. Some ideas gleaned from File::Copy by Aaron Sherman & Charles Bailey, but the code was written from scratch. Patch at versions 0.33, and 0.34 added by MZSANFORD. 0.35, 0.36 - Alexandr Ciornii (alexchorny AT gmail.com) perl v5.12.3 2011-06-18 File::NCopy(3pm)
All times are GMT -4. The time now is 09:55 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy