Elaborating on ctsgnb you could compress the tar file in the same command:-
This should work if the z flag is not supported by your operating system.
If there are too many files for the grep to cope with (i.e. if *.out expands to build a command line of more than the maximum command length for your operating system) you could convert to find however this would decend any subdirectories and follow symbolic links. Another problem you may hit would be that the list of files generated could be longer that would fit one command for the tar part. Using xargs may cause you to backup over the same file several times. You would end up with a file of only the last groups written to the archive.
If you have AIX, you can capture the file names in another file then use that with the -L flag, but I'm not sure which other operating systems support this.
At times we see the "file in use" when we run RCS (revision conrol system" on this file. Most of time, we do not see this message.
How do we identify the locks on this file and how do we release those locks? I can imagine it happens when there are some processes running on this file.
THe... (1 Reply)
Ok,
I use the command tar -cvf ~kw4691/output/test.tar ~kw4691/input on one UNIX server, lets call it sneezy. I FTP the tared file over to another server, lets call it bashful. Use the tar -xvf test.tar command and get the error
~kw4691/input "could not create the directory"
/hom/dev/sy40... (7 Replies)
To speed up our backups, I found a way to compress all the backups files without running out of space. But before starting to use this in our procedures, I want to know if the command 'compress' has any issues in AIX 4.2 with files bigger then 1Gig. Our backup files have sizes ranging between 600Mg... (1 Reply)
Hi,
I'm seeing the error vmunix: file: table is full in syslog.log.
Although changing the value of the kernel parameter nfile would make this error go away, how would I identify which process/application in the server is triggering this error? The server is a HP-UX B.11.11.
Thanks in advance! (1 Reply)
I have high values (such as ˙˙˙˙) in a text file contained in an Unix AIX server. I need to identify all the records
which are having these high values and also get the position/column number in the record structure if possible. Is there
any Unix command by which this can be done to :
1.... (5 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Hi guys,
i'm running a program on samsumg 6410 arm cpu board. it caused an "free(): invalid next size (normal)" fail.
i try to use gdb for remote debugging:
1, start gdb server on board:
gdbserver 192.168.1.20:1234 ./HostAP
Process ./HostAP created; pid = 499
Listening on port... (8 Replies)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
This is a script I got off the web for transferring Safari's "reading list" to the Pocket app. I ran it in terminal with the command bash exportsafarireadinglist.sh and got syntax error: unexpected end of file. Thanks for any help! The code:
#!/bin/bash
# Script to export Safari's reading... (2 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT BSD
tar
TAR(1) General Commands Manual TAR(1)NAME
tar - tape archiver
SYNOPSIS
tar [ key ] [ name ... ]
DESCRIPTION
Tar saves and restores multiple files on a single file (usually a magnetic tape, but it can be any file). Tar's 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 tar are file or directory names specifying which files to dump or restore. In all cases, appearance of a directory name
refers to the files and (recursively) subdirectories 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.
o On output, tar normally places information specifying owner and modes of directories in the archive. Former versions of tar,
when encountering this information will give error message of the form
"<name>/: cannot create".
This modifier will suppress the directory information.
p This modifier says to restore files to their original modes, ignoring the present umask(2). Setuid and sticky information will
also be restored to the super-user.
0, ..., 9 This modifier selects an alternate drive on which the tape is mounted. The default is drive 0 at 1600 bpi, which is normally
/dev/rmt8.
v Normally tar does its work silently. The v (verbose) option makes tar print the name of each file it treats preceded by the
function letter. With the t function, the verbose option gives more information about the tape entries than just their names.
w Tar prints 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 done. Any other input means don't do it.
f Tar uses the next argument as the name of the archive instead of /dev/rmt?. If the name of the file is `-', tar writes to stan-
dard 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 Tar uses the next argument as the blocking factor for tape records. The default is 20 (the maximum). 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 not to restore the modification times. The modification time will be the time of extraction.
h Force tar to follow symbolic links as if they were normal files or directories. Normally, tar does not follow symbolic links.
B Forces input and output blocking to 20 blocks per record. This option was added so that tar can work across a communications
channel where the blocking may not be maintained.
C If a file name is preceded by -C, then tar will perform a chdir(2) to that file name. This allows multiple directories not
related by a close common parent to be archived using short relative path names. For example, to archive files from /usr/include
and from /etc, one might use
tar c -C /usr include -C / etc
Previous restrictions dealing with tar's inability to properly handle blocked archives have been lifted.
FILES
/dev/rmt?
/tmp/tar*
SEE ALSO tar(5)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 current limit on file name length is 100 characters.
There is no way selectively to follow symbolic links.
When extracting tapes created with the r or u options, directory modification times may not be set correctly.
7th Edition May 12, 1986 TAR(1)