Questions tagged [cp]
cp is the copy command.
72
questions
47
votes
10
answers
152k
views
Linux (mv or cp) specific files from a text list of files?
I have a directory of many files, something like 50,000 pdf's and other files on a server. I need to move specific ones to another directory. I can generate a list of the files that need to be moved ...
- 643
41
votes
2
answers
121k
views
preserve permission with scp
SCP does not seem to preserve ownership stamps even if used with -p option.
scp -p /mysql/serv/data_summary.* some_server:/mysql/test/
The files are owned by mysql and I want the same ownership to ...
- 3,589
38
votes
6
answers
38k
views
cp without overwriting destination permissions
How do you use the cp command without changing the target file's permissions? For example:
cp /tmp/file /home/file
I don't want to change chown and chgrp on /home/file.
- 463
29
votes
1
answer
40k
views
SFTP: file symlinks in a jailed (chrooted) directory
I'm trying to set up sftp so that a few trusted people can access/edit/create some files. I have jailed a user into their home directory (/home/name) but have run into a problem. I want for them to ...
- 1,630
26
votes
4
answers
18k
views
Continue aborted cp
Is it possible to run cp again after it was aborted and make it start where it ended last time (not overwrite data that's already copied, only copy what's still left)?
- 1,979
24
votes
3
answers
35k
views
Turning off cp (copy) command's interactive mode (cp : overwrite ?)
Does anyone know how I would turn off the interactive mode when using cp?
I am trying to copy a directory recursively into another and for each file that is getting overwritten I have to answer 'y'.
...
- 343
23
votes
6
answers
50k
views
Recursively copying hidden files - Linux
Is there an easy way to recursively copy all hidden files in a directory to another directory? I would like to back up just all the settings files in a home directory, not the normal files. I tried:
...
- 449
14
votes
6
answers
9k
views
Unix copy command that has a progress bar, but not as heavy as rsync
I need to copy lots of files. Usually I use rsync because I pass it the -aP options and I can see (a) how many files are left to process and (b) how much of each individual file is copied.
However ...
- 31.7k
14
votes
2
answers
19k
views
cp -p will preserve times for some files but not all?
I have a source directory on a machine with a bunch of files, all with the same permissions, that I want to copy to another directory, that is mounted via SMB.
[tmark@dexter JR09141045 ...
- 141
12
votes
3
answers
14k
views
cp command, ignore unchanged files
Is there a way to do a cp but ignoring any files that may already exist at the destination that aren't any older then those files at source.
Basically I want to copy the contents of one disk to ...
- 609
12
votes
5
answers
8k
views
resume file copy linux
How do I resume a copy of a large file in linux? I have a huge file (serveral gigabyes) partially copied to a network drive, and it took a long time, and it was mostly done before the copy operation ...
Andrew Johnson
7
votes
3
answers
6k
views
Linux file copy with ETA?
I'm copying a large amount of files between disks. There's approximately 16 GB of data.
I'd like to see progress information, and even an estimated time of completion from the command line.
Any ...
- 604
6
votes
2
answers
25k
views
What's faster for copying files from one drive to another? [closed]
Running linux. I have two identical drives mounted on the same machine. What is faster CP, MV, or RSYNC? Why is one faster than the other? Are there any faster alternatives?
- 927
6
votes
4
answers
8k
views
Best way to copy large amount of data between partitions
I'm looking to transfer data across 2 lv of an HP-UX server. I have a couple of those transfers to do, some of which are mostly binary (Oracle tablespace...) and some others are more text files (logs.....
- 759
6
votes
5
answers
6k
views
cpio VS tar and cp
I just learned that cpio has three modes: copy-out, copy-in and pass-through.
I was wondering what are the advantages and disadvantages of cpio under copy-out and copy-in modes over tar. When is it ...
- 1,497
5
votes
2
answers
4k
views
Ubuntu cp -p on mounted ZFS pool
On my Ubuntu server, I have several automounted zfs pools. The problem that I have, is that when I try to copy a file while preserving permissions, I get the following error:
cp: preserving ...
- 431
4
votes
1
answer
7k
views
What does the message, "too many links" mean when using CP on Linux?
I am copying 25,000 folders containing hundreds of files each from one hard drive to another on the same Linux server. The destination folder already contains 25,000 different folders full of their ...
- 927
4
votes
1
answer
4k
views
mv fails but cp succeeds on nfs mount
I am trying to move a file from a local directory to an nfs mounted directory on a CentOS 7 server. The export is provided by FreeNAS.
Both directories are owned by the current user with at least 755 ...
- 403
3
votes
3
answers
2k
views
Creating an iso file in Linux
I have created iso files by using two commands:
dd if=/dev/cdrom of=filename
cp /dev/cdrom filename
What's the difference between the two, both have worked for me.
- 824
3
votes
1
answer
3k
views
Improve RSYNC scan speed / Alternate approach?
I'm using rsync to transfer application log files from one server to another. It works fine with the exception that scanning the directories takes forever. I have around 160,000 log files and a few ...
- 381
3
votes
2
answers
893
views
cp from local to usb-drive affects desktop performance
Background
While copying a vast number of multi-megabyte sound files, the Kubuntu desktop becomes intermittently unresponsive (the mouse pointer can move, but Firefox, Konsole, and KDE itself ...
- 235
3
votes
1
answer
1k
views
cp -R source_dir/* dest_dir/ does overwrite files?
I am trying to copy, recursively, the content of a directory to another using:
cp -Rv source_dir/* dest_dir/
It seems that everything work ok but when I list that directory with ls -l the change ...
- 745
2
votes
1
answer
5k
views
copy and replace to folders to another fastest way - linux bash
I have a three folders: core, project and merge with many files inside.
I want to delete all files and folders (including dot files) inside the merge folder, and then copy all files (including dot ...
2
votes
2
answers
11k
views
How to cp only into the latest directory name?
mkdir test_dir test_dir1 test_dir2 test_dir3
touch file1 file2 file3
cp -v file* test_dir*/
This copies only to test_dir3 and not in test_dir, test_dir1, test_dir2. Why?
For that matter it copies ...
- 433
2
votes
2
answers
208
views
Copying between lzo compressed BtrFS's: de/re-compressing?
I'm copying a large number of files between two lzo compressed BtrFS filesystems on different drives mounted on the same machine. It appears that the files are being de/re-compressed. Is there a way ...
- 246
2
votes
1
answer
4k
views
/bin/sh: /bin/cp: Argument list too long
I have problem with this command:
'cp' -fr /www/*-aws/* /www/mainhost/aws/awstatstotals/tmp/
Error is Argument list too long - I know many /www/-aws/ folders. I know that I can use FIND command, ...
- 417
2
votes
2
answers
17k
views
Linux Shell - How to copy directory without symlink
I would like to get everything inside one directory.
How can I copy entire directory (that originally contains files and symlinks) to a new directory that should contains all files but no symlink??
...
- 201
2
votes
2
answers
723
views
Copy entire filesystem in a folder where a raid-1 array is mounted
I am trying to migrate from a single disk drive system to a double disk drive software raid-1 system that already has a running system on it. Meaning that formatting and having a new installation of ...
2
votes
1
answer
6k
views
Performance problem with QNAP TS-410 NAS
We have a QNAP TS-410 in our office. Its hardware is:
256MB DDR2 RAM
CPU Marvell 6281 800MHz
4 x 1.4GB Seagate SATA disks mounted on RAID5
We thought it would be sufficient to make backups for our ...
- 209
2
votes
1
answer
664
views
cp is too slow, same with rsync (I assume) - is there a way to share files in two locations?
I am using Docker and Docker cannot COPY symlinked files into the image. But the files that are symlinked are not in the 'build context'. So I was going to copy them into the build context with cp, ...
- 123
2
votes
1
answer
306
views
RSYNC Slow / Copy only changed files?
I have a server that maintains thousands of log files that are nested in thousands of directories. At the moment, I am using RSYNC to copy those log files to a web server where I parse them and make ...
- 381
2
votes
0
answers
52
views
'reboot' command doesn't work properly after 'cp' command, 'mv' behaves weird, as well
I have compiled C code running as a binary on an ARM. The ARM boots Linux from an SD Card using an old Image that was generated using buildroot. Within the C code I call a shell script that moves the ...
- 21
2
votes
0
answers
772
views
RHEL 6.7 cache causing out of memory errors
I have a (large) system that has cache behavior that I don't understand. It seems that the cache ran the system out of memory. How is this possible? Doesn't the kernel clean up the cache when there'...
- 31
1
vote
3
answers
152
views
How to move and partially rename files on linux
I have versioned files which come out of a build pipeline.
foo-1.3.4.war
and I need to move these files to have the name
foo-dev-1.3.4.war
How would I go about this?
I was thinking something ...
- 113
1
vote
3
answers
5k
views
Estimating the time needed to copy a big file
I have to copy a relatively big file (6GB) to another server. To enforce consistency, I have to 'lock' this file and not use it during the transfer. I obviously want to minimize this downtime, but ...
- 609
1
vote
1
answer
376
views
Replacing directories that are subversion-monitored
We're trying to update an installed software which we have under control by subversion. The update instructions for the software require replacing several directories that have .svn directories in ...
1
vote
1
answer
433
views
Does cp -p apply to the source or destination file?
When I use -p to preserve the file permissions of a file being copied, does it apply to the source or the destination file (if it already exists)?
Thanks
- 731
1
vote
1
answer
2k
views
UNIX Copy/Move files in same directory preserving timestamp
Following is the scenario. There are multiple files in a directory created by users belonging to same unix group.
Unix Group: Prod.
User in Prod Unix Group: User1 User2 User3.
All 3 users have same ...
- 21
1
vote
1
answer
325
views
Server Load Spikes On File Copy -- Server Goes Unresponsive
This has been a problem that we've been battling for some weeks. Whenever large files are copied on the server (both with rsync and cp) the server load initially goes up to 6 or 8 and stabilizes. At ...
Zach W
1
vote
2
answers
2k
views
what is the best approach to copy /var content
we have linux redhar 7
we want to keep the /var on other volume
so the plan is to:
mkdir /var_copy
cp -rp /var/* /var_copy
umount /dev/mapper/vg-a-var /var
rm -rf /var
mkdir /var
mount /dev/mapper/...
- 59
1
vote
1
answer
2k
views
nfs file transfers fail, "cp: cannot stat 'dir_name': No such file or directory" but sshfs works fine
We have a strange issue on our file server (Debian Wheezy 32-bit), where some files within folders contained in an nfs share fail during transfer using the cp command. Howerver, if we mount the same ...
- 121
1
vote
3
answers
146
views
Copy all files to another location [closed]
I have a folder called "employee" and within that folder there are sub-folders with each employee name.
employee
>> amar
>> akbar
>> anthony
Each of these folders contain 1 or 2 ...
- 3,589
1
vote
1
answer
900
views
Getting Linux copy to handle failing links
I just started using the nifty rsnapshot utility for backups to our NAS. I really like the tool (which uses rsync and links unchanged files to keep the backup size down), but I'm running into ...
- 9,157
1
vote
2
answers
918
views
Most side effect-free way to archive a large file while it is being modified
I am looking after an application that generates a large amount of data in a log file (about 5G a day) on a Red Hat server. This process runs for 24 hours during the week, so there is no point in the ...
0
votes
1
answer
629
views
Rotating Backups with RSync and CP - Excludes not working perfectly
My script looks essentially like this:
cp -al $yesterdays_snapshot $todays_snapshot
rsync -vadlH --exclude-from excludes.rsyc $source $todays_snapshot
This works great except for one problem:
If ...
- 225
0
votes
3
answers
5k
views
copy and rename files
Here are my access logs those I want to backup.
/var/log/httpd/access_log
/var/log/httpd/access_log.1
/var/log/httpd/access_log.2
/var/log/httpd/access_log.3
...
I want to copy all these files but ...
- 3,589
0
votes
2
answers
2k
views
How to clone with cat?
I want to clone an 8.1gig bootable disk to an 8.0gig disk and have the clone remain bootable.
dd causes problems because the destination disk is a few mb smaller than the source.
Can "cat" help me ...
- 101
0
votes
1
answer
206
views
New external backup drives - first time backup - cp or rsync
I've just bought a clutch of external drives to start a rotating backup of my photography work, and wonder if I should just do a straight copy the first time around, or if rsync would be the better ...
- 761
0
votes
1
answer
62
views
Why I can do a wildcard copy from one location, but can't from another?
One wildcard batch copy works for me:
sudo cp /home/jenkins/dist/*.war /opt/tomcat/webapps/
but another similar doesn't:
sudo cp /opt/tomcat/webapps/*.war /home/jenkins/archive
cp: cannot stat '/opt/...
- 137
0
votes
1
answer
2k
views
using find, exec and cp to copy specific files while preserving directory path
I set up the following folders with empty text files:
1/a.txt
2/b.txt
I want to copy only txt files to another directory while maintaining their directory structure. So I tried the following ...
- 7,373