08-30-2001
what os are you running. diffearnt os's have differant backup commands that support diffearnt options.
with the tar command you can have it written directly to tape. there are many examples in the man page.
#man tar
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I have my log files in /home/user1/temp2/logs i want to archive
*.log and *.txt files and to store in my /home/user1/temp2/archved/
with *.log with Time stamp ,Please let me know how to do this? (1 Reply)
Discussion started by: redlotus72
1 Replies
2. Shell Programming and Scripting
Hi gurus,
I have a batch job running daily night automatically. The job produces file with extension '.0' like a.0, b.0 etc.
Now due to file space constraints, most of the time, the job fails with insufficient disk space and then we have to manually start the job again and keep running the... (1 Reply)
Discussion started by: super_duper_guy
1 Replies
3. UNIX for Dummies Questions & Answers
Hi All,
I would like to archive some of the scripts below(USFINUM042006_01.CSV
USFINUM042006_02.CSV and USFINUM042006_03.CSV )and also use a wildcard e.g. <command> USFINUM*.CSV. Also there are a lot of similar files but I want only the three latest files to be compressed. Which is the best... (3 Replies)
Discussion started by: indira
3 Replies
4. UNIX for Dummies Questions & Answers
Hello,
On a Centos 5.0 server, Apache 2.2 delivers static html page. How could I compress those html pages to gain speed and save bandwidth? is there a utility that would be effective and save?
Thanks (2 Replies)
Discussion started by: JCR
2 Replies
5. Shell Programming and Scripting
Could someone give me an idea how to compress all files from a given directory that are not of type .z (compressed). Please help. (2 Replies)
Discussion started by: lesstjm
2 Replies
6. UNIX for Dummies Questions & Answers
I want to compress all the files which are three years older ..I have thousands of files...
1) This doesnt work
find ./ -type f -mtime +1176 -print | xargs -n1 -i tar -cvf {}
Errror
tar: Missing filenames
Probably because of -
find ./ -type f -mtime -1 -print returns -
"
./temp.txt"... (6 Replies)
Discussion started by: kedar.mehta
6 Replies
7. UNIX for Dummies Questions & Answers
Could someone please help?
I'm trying to compress all the files in a directory without extension. I know for typical files with extension, the command is something like:
tar -zcvf file.tar.gz *.doc
What is the command for files without extension? Thanks. (4 Replies)
Discussion started by: AChan1118
4 Replies
8. UNIX for Dummies Questions & Answers
Hi All !
We have to compress a big data file in unix server and transfer it to windows and uncompress it using winzip in windows.
I have used the utility ZIP like the below.
zip -e <newfilename> df2_test_extract.dat
but when I compress files greater than 4 gb using zip utility, it... (4 Replies)
Discussion started by: sakthifire
4 Replies
9. Shell Programming and Scripting
Hi ALL,
I am working on a folder where there are lot of files for the past one year. I need to compress a particular month files alone. suppose i need to compress the feb month files alone, what is the script we can use.
Thanks in advance (2 Replies)
Discussion started by: acronis.84
2 Replies
10. UNIX for Dummies Questions & Answers
the problem states "Write a script that compresses all the files in the directory. Make a directory and put some files in it. Also make a sub directory in your directory and put files in it also. Once you have this basic ability to compress all files within a directory, add to your script a menu of... (1 Reply)
Discussion started by: Brittany
1 Replies
TAR(1) General Commands Manual TAR(1)
NAME
tar - tape archiver
SYNOPSIS
tar [ key ] [ name ... ]
DESCRIPTION
Tar saves and restores files on magtape. Its actions are controlled by the key argument. The key is a string of characters containing at
most one function letter and possibly one or more function modifiers. Other arguments to the command are file or directory names specify-
ing which files are to be dumped or restored. In all cases, appearance of a directory name refers to the files and (recursively) subdirec-
tories of that directory.
The function portion of the key is specified by one of the following letters:
r The named files are written on the end of the tape. The c function implies this.
x The named files are extracted from the tape. If the named file matches a directory whose contents had been written onto the tape,
this directory is (recursively) extracted. The owner, modification time, and mode are restored (if possible). If no file argument
is given, the entire content of the tape is extracted. Note that if multiple entries specifying the same file are on the tape, the
last one overwrites all earlier.
t The names of the specified files are listed each time they occur on the tape. If no file argument is given, all of the names on
the tape are listed.
u The named files are added to the tape if either they are not already there or have been modified since last put on the tape.
c Create a new tape; writing begins on the beginning of the tape instead of after the last file. This command implies r.
The following characters may be used in addition to the letter which selects the function desired.
0,...,7 This modifier selects the drive on which the tape is mounted. The default is 1.
v Normally tar does its work silently. The v (verbose) option causes it to type the name of each file it treats preceded by the
function letter. With the t function, v gives more information about the tape entries than just the name.
w causes tar to print the action to be taken followed by file name, then wait for user confirmation. If a word beginning with `y'
is given, the action is performed. Any other input means don't do it.
f causes tar to use the next argument as the name of the archive instead of /dev/mt?. If the name of the file is `-', tar writes
to standard output or reads from standard input, whichever is appropriate. Thus, tar can be used as the head or tail of a filter
chain Tar can also be used to move hierarchies with the command
cd fromdir; tar cf - . | (cd todir; tar xf -)
b causes tar to use the next argument as the blocking factor for tape records. The default is 1, the maximum is 20. This option
should only be used with raw magnetic tape archives (See f above). The block size is determined automatically when reading tapes
(key letters `x' and `t').
l tells tar to complain if it cannot resolve all of the links to the files dumped. If this is not specified, no error messages are
printed.
m tells tar to not restore the modification times. The mod time will be the time of extraction.
FILES
/dev/mt?
/tmp/tar*
DIAGNOSTICS
Complaints about bad key characters and tape read/write errors.
Complaints if enough memory is not available to hold the link tables.
BUGS
There is no way to ask for the n-th occurrence of a file.
Tape errors are handled ungracefully.
The u option can be slow.
The b option should not be used with archives that are going to be updated. The current magtape driver cannot backspace raw magtape. If
the archive is on a disk file the b option should not be used at all, as updating an archive stored in this manner can destroy it.
The current limit on file name length is 100 characters.
TAR(1)