cp is the command of the Unix operating system that is used to copy files.

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How to Copy Large Directory to External Hard Drive Linux

I've formatted a 3TB external hard drive as ext4 using fdisk (actually gnu fdisk), mounted it at /media/external and am trying to copy my entire home directory to it. My first attempt I thought was ...
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Different performance for different USB 2.0 devices

I copied a 3.5GB file from my SATA HD to my Seagate USB 2.0 external HD in about 3 minutes. I copied the same 3.5GB file from my SATA HD to my USB 2.0 SanDisk Cruzer and it took more than 15 minutes. ...
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rtorrent copy after download

so I`m trying to do the following: When rtorrent finishes download, it should copy files from download dir to another dir called uploads, so the file would be in Downloads dir AND in Uploads dir. ...
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Copy sequential files into sequential directories

I need to copy multiple, sequential files into sequential directories. The files have the julian date (day of year) with other info in the file name. The directories are listed by julian date (day of ...
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execute script with sudo and check security

I have a script, which I need to execute with sudo. #!/bin/bash cp "$@" /destionation/dir Is it a good script or someone can bypass the restriction destination dir ? Thanks for suggestions.
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cp -a is preserving ownership, from non-root user

When I invoke cp -a 1 2 from a non-root user, the ownership is being preserved, despite the fact that file 1 belongs to another user. My understanding was this shouldn't be possible. What is going ...
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permission denied while copying files with root

Ok, how is it possible that I get perm denied when I'm copying files in console. Any ideas?
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Merging two directory trees with same structure, but different contents in Unix

I have two directories with the following structure: A |_0 |_1 |_2 B |_0 |_1 |_2 each 0,1,2 directory contains unique contents. I want all of the contents to simply exist as: A |_0 |_1 |_2 Is ...
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How do I create numbered backups?

Some GNU utils (e.g., mv and cp) can create numbered backups (foo.~1~). Others (e.g., wget) cannot. I would like to create numbered backups before running tools which overwrite files by default. Here ...
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Is cp -au / cp --archive --update contradictory?

I want to update a directory on a backup disk with new content added to the source, and of course rsync is too slow. cp -a does the trick but is a bulldozer; cp -u should leave existing files alone. ...
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Why is tar|tar so much faster than cp?

For recursively copying a directory, using tar to pack up a directory and then piping the output to another tar to unpack seems to be much faster than using cp -r (or cp -a). Why is this? And why ...
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File copying times out Single User mode mac

I have an old 2009 MacBook that recently crashed. I can't boot into safe mode, but I can boot into Single User mode, verify my disk, and mount a USB drive and copy files to that USB. However, my ...
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How can I copy files recursively without overwriting the directories

On linux, let's say I have some files like this: dir1/file1 dir2/file2 and I want to copy them to a destination that already have dir1 and dir2 and looks like: dir1/file1 dir1/file1a dir2/file2 ...
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shortcut to recursively copying a directory preserving modes, ownerships and hard and symbolic links

I am using the following to recursively copy a directory while preserving modes, permissions as well as hard and symbolic links: cp -pr --preserve=links dir-a dir-b However I have the following ...
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Maintaining peak IO potential with DD / CP

I wanted to copy a file (40 gig dataset) from a single drive to a dual disk raid-0 drive. I tried with CP and it sustained read - 4mb and write - 11 mb (doesn't make sense I know (must be the stripe ...
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how to update a directory that is a mirror of another one (with hard-links)?

I like using cp -rl dir1 dir2 to make a recursive copy of dir1 into dir2 (using hard links to save storage, and usually followed by rsync to make progressive backups). The issue is that, if dir2 ...
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cp file in /dev/sdc, now drive isn't readable

So I was trying to instal Arch on my Laptop, and I wanted to copy boot.efi into my usb. cp boot.efi /dev/sdc cp boot.efi /dev/sdc1 cp boot.efi /dev/sdc2 and now its not being read. How can I fix my ...
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Copy from Debian to mounted CIFS share hangs

I have a backup script run by a cron job on my Debian server. It creates a .tar.gz file from /home and copies it to a mounted CIFS share onto a Windows XP machine. It has been running without a ...
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cp didn't copy all files few files were missing

How is it possible that cp didn't copy all files from a huge directory? I did cp on a large directory with 5000 files. I checked contents with diff and it was not matching! How is this possible? I ...