cp - Command-line tool to copy a file

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4
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3answers
3k views

convert soft- to hardlinks with cp

The cp command's infopage offers on the option --preserve= the following: links Preserve in the destination files any links between corresponding source files. Note that with -L' ...
3
votes
1answer
205 views

cp --attributes-only documented but not working “now”?

PROBLEM: cp --attributes-only Source Target results in two files unchanged, where the attributes from Source should be copied to Target. Attempts to solve: As I have the 8.13 version of coreutils ...
4
votes
2answers
499 views

Copying large file causes excessive swap

On a mid-class CentOS 6.4/64 server with 32 GB RAM, 3 TB free disk space, operating as KVM hypervisor, I start copying a 200 GB file to a destination in the same local filesystem. In fact, this file ...
14
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4answers
994 views

Why not always use rsync?

I wanted to ask is there any reason not to use rsync for everything and abandon cp? I wasn't aware of rsync and now I don't know why cp is ever needed.
0
votes
2answers
74 views

How do I copy and paste seperately? [closed]

I know for the cp command you have to specify the source(s) and destination. But what if I have to copy say all folders under src folder, do some other operations, and then paste later on? In short, ...
3
votes
2answers
137 views

Shell-independent way to cp dotfiles from a folder to another [duplicate]

I have two existing directories : foo: directory with dotfiles in it foo2: empty directory I would like to have a solution to copy all dotfiles in foo to foo2. I would like a solution that is not ...
4
votes
2answers
256 views

Copy files with deleting suffix in name

How can be done coping files that have some suffix at the end, into same dir with the smallest command possible: Example have directory containing files: cassandra.yml.example database.yml.example ...
7
votes
3answers
744 views

cp or mv files to same directory they are already in when I am in another?

If I am in ~/blob and I have a file in ~/blob/a_long_directory_name/c/x.x I can type mv blob/a_long_directory_name/c/x.x blob/a_long_directory_name/even_more/y.y Is there any shortcut whereby I ...
2
votes
1answer
78 views

Why don't I see a file being copied right away with ls?

Is it due to the buffering in memory? I did cp /network/large_file . & and I kept doing ls -lh to monitor progress, but the file didn't appear until it was about 400MB. Linux 2.6 kernel, Bash 4, ...
4
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3answers
3k views

`cp -al` snapshot whose hard links get directed to a new file when edited

I am trying to take snapshots of a massive folder regularly. I have read here: http://www.mikerubel.org/computers/rsync_snapshots/#Incremental that cp -al takes a snapshot of a folder by simply ...
8
votes
5answers
4k views

cp with a single argument containing wildcards [duplicate]

If I have the following 2 files and 1 folder: someuser@computer:~/Desktop/test$ ls -l total 340 -rw-r--r-- 1 someuser someuser 45082 ago 5 09:56 file1.pdf -rw-r--r-- 1 someuser someuser 291836 ago ...
3
votes
3answers
117 views

cp SOMEFILE .. copies to a different directory after cd'ing via a symbolic link

Consider the following setup: ~/Desktop/Public/subdir ~/Desktop/subdir --> ~/Desktop/Public/subdir (symbolic link) Now I do: cd ~/Desktop/subdir Which leads me into the linked directory. If ...
15
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2answers
2k views

What happens if a file is modified while you're copying it?

What is the effect of copying a file say fileA.big (900mb) from location B to locationC. If during that cp operation, say 35% through the process, fileA.big is appended with new information and grows ...
0
votes
0answers
22 views

file modified while doing scp/cp [duplicate]

I'm doing scp to a database while it's active. Its not very critical but I would like to know what will happen to a file when it is modified in the middle of a cp process? Does it get corrupted or it ...
4
votes
2answers
362 views

When wouldn't one want `cp` to be recursive?

Under what conditions might one wish to use the cp command on a directory yet have it not be recursive? Consider: $ tree . └── old └── inner └── a.txt 2 directories, 1 file $ cp ...
3
votes
3answers
71 views

Can I forbid the creation of files with certain permissions?

I have a directory with a certain group ID, and I only want files with the same ID to be in that directory. So I set the SGID bit on that directory, so that everytime a file is created inside it, it ...
1
vote
1answer
381 views

Symlink Copy a Directory Non-recursively

So I want to symlink copy all the files and folders in one directory to another directory. When I use cp -s though without the -r option I get a bunch of "omitting directory" warnings, and I don't ...
2
votes
1answer
77 views

How can I make multiple copies of one folder without merging?

When two or more identically named folders are to be copied into or moved to the same location, the default option either in the GUI file manager, or using in a terminal cp -r --backup=numbered or ...
3
votes
1answer
4k views

Unzip file contents, but without creating archive folder

I have a file myarchive.zip that contains many directories, files, etc. Let's say this myarchive.zip file lives in a directory called "b". Well, when I use the "unzip myarchive.zip" command, the ...
7
votes
4answers
5k views

cp or rsync, is cp really worth it?

I hope this does not count as a question without a real answer, as I can't seem to find a good reason to use cp(1) over rsync(1) in virtually all circumstances. Should one typically favour rsync over ...
4
votes
3answers
198 views

Back up logs to a new directory

I need help to write a script to copy log files. There are two format of logs: System_<date_timestamp>.log trace_<date_timestamp>.log New files are generated when trace log reaches ...
0
votes
1answer
320 views

Simple bash script taking too long to execute

I wrote the following function in my .bashrc for use instead of rm * : function re() { cp . -R /home/glset/ritwik/trash/ rm * } It works .. but it is very slow. Even for small files it takes too ...
5
votes
1answer
521 views

What is causing this Copy command to enter sleep state?

I am trying to recursively copy a huge directory of installables over 25G and want to preserve the owner and group id, permission modes and so on. So I ran the below commands: bash-3.2$ date; cp ...
1
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3answers
9k views

`cp` permission denied when copy a file owned by `root`

I have a folder udp_folder2 d------r-T 41 root root 4096 Apr 26 21:17 udp_folder2 when I'm with user other than root, I can't cp -r it into a new folder it says: Permission denied ...
2
votes
1answer
105 views

exec cp failes from script, yet works when issued directly

I have a script that copies SQL backups to a windows server. Here's the line from /etc/fstab: //my.win.box/share$ /winshare cifs ...
0
votes
4answers
137 views

concatenating multiple files with multiple headers

Im trying to concatenate multiple files with multiple headers to have one file with all the information in it for example. File 1: Numbers 1 2 3 Letters A B C File 2: Numbers 4 5 6 Letters D E ...
1
vote
3answers
406 views

Why does this work: “cp image.bin /dev/mapper/loop0p1”?

Why does this work? cp image.bin /dev/mapper/loop0p1 image.bin is a partition image. I have tried it and works, but why? Shouldn't a dd be used?
2
votes
2answers
729 views

Can one copy a relpath in one command?

I find myself doing this often enough that I wonder if there's a standard Unix way to do it: % mkdir -p /TARGETDIR/relative/path/to % cp ./relative/path/to/somefile /TARGETDIR/relative/path/to In ...
1
vote
1answer
63 views

How rename directories tree entry by entry

I have text file contain two columns: current directory name the new name of the last entry d_7154/d_7161/ 'Main Integration' ...
2
votes
1answer
672 views

Minimal command to make a copy of a file [duplicate]

I often find myself copy-pasting long path in order to create a copy of a file cp /path/to/file/file1 /path/to/file/file1.bkp Is there an alternative utility that will NOT require me to type the ...
1
vote
2answers
9k views

faster alternative to cp -a

For a simple transfer of /home to another disk i use cp -a that seems to me an extremely slow way. Should like know a more efficient way to complete the task. I have /home mounted as logical volume, ...
8
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2answers
335 views

Why do `cp` and `rm` treat directories separately?

Why do tools like cp and rm treat directories separately from regular files? They both require the user to explicitly specify she wants a recursive behavior, or else they won't deal with directories ...
2
votes
1answer
229 views

What happens when I copy a file from one network location to another

Suppose I have three networked computers: A, B and C. A mounts a directory from B and from C. A/mnt/im-on-B/ A/mnt/im-on-C/ A then copies a file: cp /mnt/im-on-B/file ../im-on-C/ What happens ...
2
votes
3answers
307 views

How to copy a list of files and adjust destination filenames on the fly?

When I don't need to adjust destination filenames I can do something like this: $ find -type f -name '*.pat' -print0 | xargs -O cp -t /path/to/dest It is safe because the filenames may even ...
1
vote
1answer
346 views

Killed `rm` and `cp` on nfs share

I am just testing an rsnapshot installation on my laptop which should backup to a NAS mounted via nfs on my laptop. On one test rsnapshot died with a cp -al problem (i.e. a problem with hard links) ...
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2answers
167 views

Shell : Сopy one directory to multiple directories

There is a directory YYY and a structure on the site: site1.ru/wp-content/plugins/ site2.ru/wp-content/plugins/ ... site10.ru/wp-content/plugins/ Task: YYY directory to copy all directories plugins ...
2
votes
3answers
255 views

How to cp or rm files based on ownership / permission

After a problem with spam, I stopped postfix postfix stop and checked through the mailq manually to find hundreds of thousands of unsent spam. The spam was sent from one of the sites hosted ...
7
votes
1answer
100 views

Is there a way to express: `--link` or fall back to ordinary copy in cp (from GNU coreutils)?

Is there a way to tell cp to --link (i.e. create hard links), but fall back in the case where I am attempting inter-device hardlinks? Inter-device links aren't possible and would cause cp to fail. ...
2
votes
3answers
508 views

Use find + sed + cp to find files and copy them to a directory with a different name

I'm trying to copy a bunch of files named folder.jpg into a folder. The problem is because all the files are named the same thing, I need to rename them in the process. I know I can probably do it ...
3
votes
3answers
92 views

What are some quick ways of making N copies of a particular file?

Say, if I wanted to make N copies of a.txt, and wanted them to be numbered a1.txt, a2.txt, a3.txt, etc... How would I do such a thing succinctly?
2
votes
1answer
212 views

How can I copy a git repo from a Makefile?

I'm writing a Makefile to sync my local dotfiles with GitHub. I recently decided to also add my .vim folder to the repo. But when trying to copy the .vim folder I keep getting a Permission denied ...
0
votes
0answers
46 views

Move files replacing? [duplicate]

Possible Duplicate: ‘mv’ equivalent of drag and drop with replace? I'd like to take a folder /a/b/c, and copy all files in /a/b/x into /a/b/c, replacing all files in /a/b/c with the ones in ...
1
vote
1answer
896 views

How to copy symbolic links while preserving the validity of the link?

Say under directory /usr/local/boost_1_52_0/stage/lib, I have a symbolic link: libboost_timer.so, which points to the regular file libboost_timer.so.1.52.0 in the same directory. How can I cp the ...
2
votes
2answers
243 views

cp file device:directory on Minix

In my operating systems class we had to modify the boot screen of the Minix OS. I understood just about everything we did, but at the end of the make for compiling the new OS, there's a line: cp ...
9
votes
6answers
2k views

How to copy every 4th file in a folder

I have a lot of files in a folder, named like 00802_Bla_Aquarium_XXXXX.jpg. Now I need to copy every 4th file to a subfolder, saying in selected/. 00802_Bla_Aquarium_00020.jpg <= this one ...
6
votes
2answers
6k views

tar files from another directory without copying them

This should be very simple for experts in here. I have a Linux account with user disk quota of only 6GB. There is some data-folder in /opt with about 3GB of data with when compressed comes up 1GB. ...
1
vote
2answers
619 views

Copying only differences?

I want to recursively copy one directory over another, however I only want to copy differences. The reason is that I'm doing this on Solaris on a volume which is snapshot, i.e. if I'm copying 100gig ...
0
votes
1answer
453 views

Unix cp wildcard with directory structure [duplicate]

Possible Duplicate: How can I copy a subset of files from a directory while preserving the folder structure? I have a bunch of directories like this: /Artists/Example Name ...
1
vote
2answers
1k views

How to avoid cp -r ~/some/folder/ . copying all files to the current folder's top level?

(Update: this happens on Mac OS X -- I am using Mountain Lion.) It sometimes happen that I use the tab key to complete the path, so my command may be: cp -r ~/some/folder/ . but it turns out that ...