I want to retain specific number of backup files in a directory.for example i want to retain only two latest backup file in backup directory. If number of backup files is greater than this policy that it will delete oldest file.Please Tell me whether this is possible or not. (2 Replies)
using sed to replace a specific string on a specific line number using variables
this is where i am at
grep -v WARNING output | grep -v spawn | grep -v Passphrase | grep -v Authentication | grep -v '/sbin/tfadmin netguard -C'| grep -v 'NETWORK>' >> output.clean
grep -n Destination... (2 Replies)
hey guys,
I have a directory with about 600 files. I need to find a specific word inside a command and replace only that instance of the word in many files. For example, lets say I have a command called 'foo' in many files. One of the input arguments of the 'foo' call is 'bar'. The word 'bar'... (5 Replies)
Hello! All,
Could you please tell me how to get a specific line number from a text file?
For example below,
ABC
DEF ---> Get this line number, return to an variable
GHI
My OS is Linux.
Thank you so much for your help in advance! (3 Replies)
My project is to get a temperature reading from a refridgerator every 2 minutes and check to see if the door has been left open.
I don't yet have the mastery of Linux, being a complete noob, but I reckon I need a text file with the latest temperature reading in it. This I've managed to do by... (2 Replies)
From the existing file, I need to replace specific contents possibly with var every time when the user changes the var.
e.g the contents in the file file.txt is 'My name is $n and I am $y years old' and every time user changed the var outside the file, the contents of the file should be created... (4 Replies)
How to replace the position specific values in the file..
i searched a lot the forums but i couldn't able to do...
i have file like below
576666666666666666666666666 7878 897987 121 0asdas Y12
5900fbb 777 09JJJ 78798347892374 234234234364 234232898
89HJHIHIGIUG989902743748327khjkhkjlh... (6 Replies)
dear all,
i need your advice
i have sample script like this:
testing.sh
for i in {1..10}
do
echo testing $i
done
but i forgot create "#!/bin/bash" in above "for"
so i want output will like this
testing.sh
#!/bin/bash
for i in {1..10}
do
echo testing $i
done (2 Replies)
Hi,
I have a set of files in a directory that I have to read and replace the first occurrence of a number with another dummy number. This is what I have so far but it does not seem to work. The files have lot of other data in each row and each data element is separated by ,@,
for file in... (13 Replies)
I have a fixed-length positional file. I am trying to replace content of position 4-13 (length=10) with xxxxxxxxxx.
Sample 2 rows in this file:
H0187459823 172SMITH, JOE
H0112345678 172DOE, JANE
In this example 87459823 (from 1st line) and 12345678 (from 2nd line) (both in position... (3 Replies)
Discussion started by: Diver181
3 Replies
LEARN ABOUT OSF1
mkcdsl
mkcdsl(8) System Manager's Manual mkcdsl(8)NAME
mkcdsl - Make a context-dependent symbolic link (CDSL)
SYNOPSIS
/usr/sbin/mkcdsl [-bfnqv] [-i | -c | -a] [sourcename] [targetname]
OPTIONS
All members. Copy the existing file or directory to a member-specific area on all members. Boot partition. In a cluster, the CDSL is
placed on the boot partition. On a standalone system, an entry in added to the CDSL inventory file, and the CDSL will be created on the
boot partition when the system is converted to a cluster by running clu_create. Copy the existing file or directory to a member-specific
area on this member only. Force the overwriting of the existing CDSL or member-specific file or directory. When the force option is used
with a copy option, mkcdsl will overwrite an existing member-specific file or directory. Without the force (-f) option, mkcdsl issues an
error or message whenever the physical path of the target differs from the specified targetname (for example, when targetname resolution
traverses a symbolic link), or when the source for a specified copy option cannot be found. Unless the -f option is specified, mkcdsl will
exit when it encounters a situation that would generate an error message. The mkcdsl command issues a warning message if the specified
sourcename differs from the calculated sourcename. However, you do not need the -f option to stop mkcdsl from exiting when it encounters a
situation that generates a warning message. Inventory only. Check the files and update the inventory: If targetname is a CDSL, add a new
entry or update the existing entry in /var/adm/cdsl_admin.inv. If targetname is not a CDSL or does not exist, remove its entry from
/var/adm/cdsl_admin.inv. No execute mode. Display what would be done but do not create or change anything. Quiet. Stdout and stderr are
redirected to /dev/null. Verbose. The pathname of the member-specific file to be linked. By default, each CDSL created by mkcdsl has a
sourcename that points to the default member-specific area in the file system where the targetname resolves. For example, /usr/cluster/mem-
bers/{memb}/ is the default member-specific area for the /usr file system. When issued without an explicit sourcename, mkcdsl creates a
sourcename that points to this default member-specific area using a relative pathname. In most cases, this default behavior is satisfac-
tory. It creates a relative link that resolves properly regardless of where the file system is mounted. If you specify a sourcename,
mkcdsl uses this value as the pathname to the member-specific file or directory. The sourcename must include the member-context path compo-
nent {memb}. The pathname of the new CDSL entry to be created. If targetname exists, the -f, -c or -a options are required. If the reso-
lution of the targetname traverses any symbolic links or file system mount points, the default value of sourcename is adjusted such that
the member-specific files are placed in the same file system to which targetname resolves.
DESCRIPTION
A context-dependent symbolic link (CDSL) is a special form of a symbolic link, described in ln(1), whose target pathname includes a vari-
able ({memb}). The value of {memb} is determined during pathname resolution, making it possible to maintain member-specific configuration
and data files within the clusterwide namespace.
The mkcdsl command creates a CDSL, effectively making the specified targetname file or directory member-specific. The command simplifies
the creation of a CDSL by automatically calculating a default sourcename, which resolves to the default member-specific area in the file
system where the CDSL is created.
When mkcdsl creates a CDSL, it adds an inventory entry to a clusterwide CDSL inventory file, /var/adm/cdsl_admin.inv. This entry makes it
possible for the cdslinvchk command to check CDSLs created by mkcdsl. The mkcdsl -i option updates the inventory file to reflect the cur-
rent state of the CDSL by adding, modifying, or removing entries from the CDSL inventory file.
In a cluster, when directed to put a file in a member-specific directory (-c or -a), mkcdsl populates both the member-specific directory or
directories and the member0 directory.
Although you can run mkcdsl from the command line, the mkcdsl command is designed to be non-interactive; it can be called from scripts
without requiring user input to complete a task.
EXAMPLES
To create a CDSL, /usr/testfile that points to cluster/members/{memb}/testfile: # mkcdsl /usr/testfile # ls -l /usr/testfile
... /usr/testfile -> cluster/members/{memb}/testfile
In the previous example, /usr/testfile must not exist. The CDSL is created in /usr and no files are created in any member's /usr/clus-
ter/members/{memb} directory.
To copy the existing file or directory /usr/testfile1 to this member's /usr/cluster/members/membern directory and replace it with a CDSL
that points to cluster/members/{memb}/testfile1: # mkcdsl -c /usr/testfile1
Although the CDSL references all members, only this member has a copy of the original /usr/testfile1 file.
To copy the existing file or directory /usr/testfile2 to all members' /usr/cluster/members/{memb} directories and replace it with a CDSL
that points to cluster/members/{memb}/testfile2: # mkcdsl -a /usr/testfile2
All members have a copy of the original /usr/testfile2 file.
To create a CDSL and explicitly specify the sourcename: # mkcdsl /usr/share/cluster/members/{memb}/testfile3
/usr/share/doclib/testfile3
*** Warning *** The passed source name, '/usr/share/cluster/members/{memb}/testfile3' differs from the calculated source name: cluster/mem-
bers/{memb}/testfile3 Using passed source name: '/usr/share/cluster/members/{memb}/testfile3'
Because the specified sourcename differs from mkcdsl's calculated default value, the command issues a warning message. Note that mkcdsl
makes the CDSL. The mkcdsl command does not exit on a warning message. It will exit for an *** Error *** message unless the -f option is
specified.
To add an inventory record for an existing CDSL to the /var/adm/cdsl_admin.inv file: # mkcdsl -i /etc/testfile4
To remove a CDSL and then remove its entry from the /var/adm/cdsl_admin.inv file: # rm /etc/testfile4 # mkcdsl -i /etc/testfile4
Note that removing the CDSL and its entry does not remove any files referenced by the CDSL.
EXIT STATUS
The exit values for mkcdsl are: Success. Failure.
FILES
Specifies the command path. CDSL administrative inventory file. This file will not exist on all systems.
SEE ALSO
Commands: ln(1), cdslinvchk(8)
Files: local(4)
Miscellaneous: hier(5)mkcdsl(8)
08-26-2010
