Tail User Post: 17866

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using tail -f

Working in HP-UX 10.20. I eventually want to write a bourne shell script to handle the following problem, but for now I am just toying with it at the command line. Here's what I am basically trying to do: tail -f log_X | grep n > log_Y I am doing a tail -f on log_X . Once it sees "n", I...

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Output from tail to a user

Hi all I've read through a few of these lists but can't find a right combination of answers (I can create VPN's but can't send an email!) Ok - I'm using taper as backup software which generates a log file called taper_log I want the last eight lines of this log file to be sent to a specified...

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Hello all, I have search the forum and could not find an answer...Here is what I am trying to do. Every 15 minutes, a script send uptime output to a logfile (dailylog.log), that file contains lines like the one below: 11:21am up 44 days, 19:15, 1 user, load average: 0.00, 0.02, 0.03 ...

4. Shell Programming and Scripting

tail -f

I am trying to extract a particular line from a.log which keeps appending every sec and output that into a newfile b.log which should append itself with filtered data received from a.log I tried tail -f a.log |grep fail| tee -a b.log nothing in b.log tail -f a.log |grep fail >>b.log ...

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Hey!! I'm having a hard time getting this to work! I need to input a name and compare that name to a file in the file the name has a code on the same line as it, what i need is to compare the input name with the file and then output the code to a other file. Ex: ...

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Hi All, My query seems to be silly but Iam unable to find where the exact problem lies. I have a script to unzip set of files here is the script #!/bin/ksh Count=`cat /home/gaddamja/Tempfile | wc -l` while do Filename=`cat /home/gaddamja/Tempfile |tail -$Count | head -1` cd...

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Hi, I want to write a script which will tail a particular file for 15 mins and then sleep for 10 mins and again tail for 15 mins. This cycle will go on for a limited period of time. How can i ensure that tail command will run for 15 mins before calling sleep command Thanks

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Joining multiple files tail on tail

I have 250 files that have 16 columns each - all numbered as follows stat.1000, stat.1001, stat.1002, stat.1003....stat.1250. I would like to join all 250 of them together tail by tail as follows. For example stat.1000 a b c d e f stat.1001 g h i j k l So that my output...

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Tail +

because the tail +2 on the first line gives me the file name pomga I do not want anything like what I miss tail +2 ejemplo.txt ouput ==> ejemplo.txt <== 1 2 3 4 5 6 7 8 9 10

LEARN ABOUT ULTRIX

rhosts

rhosts(5) File Formats Manual rhosts(5)

Name
rhosts - list of hosts that are logically equivalent to the local host

Syntax
/$HOME/.rhosts

Description
The file allows a user who has an account on the local host to log in from a remote host without supplying a password. It also allows
remote copies to the local host.

If the file exists, it is located in a user's home directory. It is not a mandatory file, however.

The format of a file entry is:
hostname [username]
The hostname is the name of the remote host from which the user wants to log into the local host. The username is the user's login name on
the remote host. If you do not specify a user name, the user must have the same login name on both the remote and local hosts.

The host names listed in the file may optionally contain the local BIND domain name. For more information on BIND, see the Guide to the
BIND/Hesiod Service.

If a user is logged in to and wants to log in to a host called without supplying a password, she must:

o Have an account on

o Create a file in her home directory on

o Specify host1 ginger as an entry in the file.
If has the same login on both and she can simply specify host1 in her entry. You can allow the superuser of a remote system to log in
to your system without password protection or perform a remote copy by having a file in the root ( / ) directory, but it is not recom-
mended.
In addition to having a file, the superuser needs a terminal entry in the file for each pseudoterminal configured in the system. The
secure entry looks similar to the following:
ttyp3 none network secure
See the reference page for more information.

Examples
The following is a sample file for the user It is located in her home directory on She also has accounts on the hosts called and Her login
name on and is the same as on but her login on is

To enable to log in to from and without supplying a password, her on should contain the following entries:
machine1
system1 gordon
host3

See Also
hosts.equiv(5), ttys(5)
Introduction to Networking and Distributed System Services

rhosts(5)

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