10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Due to budget constraints I have to reinvent an Enterprise backup system in a SPARC (sun4v) Solaris estate (10 & 11). (yep - reinvent wheel, fun but time consuming. Is this wise?! :confused: )
For each filesystem of interest, to try to capture a 'catalog' at the front of each cpio archive (for... (1 Reply)
Discussion started by: am115998
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2. Shell Programming and Scripting
I need a hint for reading manpage (I did rtfm really) of cpio to do this task as in the headline described. I want to put all files of a certain type, lets say all *.txt files or any other format. Spread in more than hundreds of subdirectories in one directory I would like to select them and just... (3 Replies)
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3. HP-UX
So I ran into a strange problem the other day when using cpio. I'm not really sure this needed to be in an HPUX specific forum, but wasn't sure where else to put it. I'm running HPUX 11.11 PARISC.
I was using cpio to copy a directory and its entire contents from one server, we'll call it... (7 Replies)
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4. HP-UX
what are cpio.cat.z files??? Can I delete them??? (3 Replies)
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5. Red Hat
Hi all,
I want to unpack some files .Files and their sizes are:
1. Linux9i_Disk1.cpio -- 500m
2. Linux9i_Disk2.cpio--- 600m
3.Linux9i_Disk3.cpio---- 250m
I used cpio -idmv Linux9i_Disk1.cpio command to unpack the files. But Its taking more time to unpack the files.What could be the... (2 Replies)
Discussion started by: William1482
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6. Shell Programming and Scripting
Hi,
Currently a backup script copies compressed files to tape using cpio command (on AIX 5.2). Recently we've had a compressed file which has gone over 2 GB in size resulting in an error while copying this file onto the tape using cpio.
Any suggestions on relevant workarounds would be much... (2 Replies)
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7. HP-UX
Hello all ...
I am an Oracle DBA that got stuck in a HP-UX SA role and need some help figuring out a UNIX problem. According to Oracle documentation, I am to issue the following command ...
cpio -idcmv <file_name>
However when I do, the server just hangs there and does nothing til I... (3 Replies)
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8. UNIX for Dummies Questions & Answers
Hello,
how can I restore files from a DAT using CPIO ?
If I make :
# mkdir save
# cd /save
# cpio -icumvdB </dev/rct0
Does the archive restore only in the directory /save ?
And how can I restore a specified file from the DAT with the cpio command ? How can I know the size of the... (2 Replies)
Discussion started by: kok
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9. UNIX for Dummies Questions & Answers
Hi all,
Please help me with the extraction of files from a cpio.
what I mean is basically I have received a file from someone i.e
rooh.cpio.
this file rooh.cpio contains various files in it.
I want to know how I can extract the files and copy them to a different directory .
Your quick... (2 Replies)
Discussion started by: rooh
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10. UNIX for Dummies Questions & Answers
by mistake I deleted all the files in
/usr2/symix/users/wfpsys/tpsc/ directory.
full backup has taken yesterday using "CPIO" command and I am able to view the files from tape also using cpio command.
but i couldn't able to restore back the files. Can you please help me immeditely by giving the... (2 Replies)
Discussion started by: wipro fluid power
2 Replies
cpio(1) General Commands Manual cpio(1)
Name
cpio - copy file archives in and out
Syntax
cpio -i [ -C ] [keys] [patterns]
cpio -o [keys]
cpio -p [keys] directory
Description
The command is a filter designed to let you copy files to or from an archive. The command differs from the command in that lets you ar-
chive any kind of file, while is limited to program object files.
Options
-i Copies files that match the specified pattern. If the pattern is not specified, copies in all files. Extracts files from the stan-
dard input, which is assumed to be the product of a previous cpio -o, and places them into the user's current directory tree. For
files with the same name, the newer file replaces the older file unless the -u option is used.
Only files with names that match patterns are selected. The patterns are specified using the notation for names described in In pat-
terns, the slash for directories (/) is included in searches using meta-characters. For example, suppose the archive contains the
file and the pathname information in the archive indicates that the directory below contains the file This command copies both files
into the user's current directory:
cpio -i *p < /dev/rmt0l
Multiple patterns may be specified and if no patterns are specified, the default for patterns is * (that is, select all files). The
extracted files are conditionally created and copied into the current directory tree based upon the options described below. The com-
mand has three function keys, each with its own set of options.
-C Specifies compatability mode for reading archives created with the old style header format. Use this option to copy in archives gen-
erated by pre-V4.2 This option is valid only for copy-in (-i) operations.
-o Copies out the specified files. Reads the standard input to obtain a list of path names and copies those files onto the standard out-
put together with path name and status information.
-p Copies files into the specified destination directory, which must already exist. Reads the standard input to obtain a list of path
names of files that are conditionally created. This list of files is copied into the destination directory tree based upon the
options used. For files with the same name, the newer file replaces the older file unless the -u option is used.
Keys
6 Processes a file with the UNIX System Sixth Edition format.
a Retains original access times of input files, and can be used with -o and -p. Normally, the read(s) used in the copy update the
copied file's access time.
B Determines input/output is to be blocked 5,120 bytes to the record. This option is meaningful only with data directed to or from or
b Swaps both bytes and halfwords.
c Creates header information in ASCII format and can be used with -i and -o.
d Creates subdirectories, as needed, below the specified destination directory.
f Copies all files except those that match the specified pattern.
k Enables symbolic link handling and is used with the -i, -o, and -p options.
l Creates links wherever possible.
m Retains modification time for each copied file. This option does not work on directories or symbolic links that are being copied; the
directory is always reset to show the access time when the copy was made.
r Interactively renames files. If you respond with a null line, the file is skipped (not copied). Use only with the -i option.
s Swaps bytes while copying files in.
S Swaps half words while copying files in.
t Prints a table of contents of the input (no files are created).
u Copies files unconditionally. (Otherwise, an older file will not replace a newer file with the same name).
v Displays detailed (verbose) information as it copies and/or creates file. When used with the t option, the table of contents looks
like the output of an ls -l command. For further information, see
Examples
This example shows how to copy the contents of the user's current directory into an archive.
ls | cpio -o > /dev/rmt0l
This example shows how to duplicate a directory hierarchy.
mkdir ~phares/newdir
cd ~phares/olddir
find . -print | cpio -pdl ~phares/newdir
This example shows how to copy all files and directories with names containing the characters "chapter" in user smith's home directory and
underlying directories.
find ~smith -name '*chapter*' -print | cpio -o > /dev/rmt0h
This example shows the results of using the r option with the -i function key.
ls | cpio -ir > ~smith/newdir
Rename <file1>
newnamefile1
Rename <file2>
<RETURN>
Skipped
Rename <file3>
newnamefile3
In some cases, the -cpio option of the command can be used more effectively than pipes and redirects using For instance, the following
example
find . -print | cpio -oB > /dev/rmt0l
can be handled more efficiently by:
find . -cpio /dev/rmt0l
To copy the contents of a directory (with symbolic link handling enabled) to the tape drive, type:
ls | cpio -ok > /dev/rmt0h
To restore the archived files back into a directory, type:
cpio -ik < /dev/rmt0h
The following example moves files, including symbolic links, from an old directory to a new directory:
mkdir ~craig/newdir
cd ~craig/olddir
ls | cpio -pdk ~craig/newdir
Restrictions
Pathnames are restricted to 128 characters.
When there are too many unique linked files, the program runs out of memory and cannot trace them. In this case, linking information is
lost.
Only the superuser can copy special files.
See Also
ar(1), find(1), cpio(5)
cpio(1)