using tail -f Post: 30512

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1. Shell Programming and Scripting

Tail??

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 ...

2. 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 ...

3. Shell Programming and Scripting

Tail Question

Hi All, I notice that the below tail cannot be done. How can i modify this code such that i can always "tail" a variable number of lines ? set num = 100 cat filename|grep xxx| tail -$num

4. Shell Programming and Scripting

tail | grep

The program that is running on my machine generates log files. I want to be able to know the number of lines that contain "FT" in the most recent log file. I wrote the following, but it always returns zero. And I know the count is not zero. Any ideas? ls -rt *.log | tail -n 1 | grep -c FT

5. Shell Programming and Scripting

Help with tail command

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...

6. UNIX for Dummies Questions & Answers

Need help with a tail and a grep

I need to tail -f a file so I can monitor it as it is being written to. However, there is a lot of garbage in the file that I don't care about. So normally I would just pipe and grep for the string that is important to me. However, in this case, there are two things I need to grep for. I can't...

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using tail -f and tr in a script

I have file that is being constantly written to example: file.txt ABC EBC ZZZ ABC I am trying to create a simple script that will tail this file and at the same time using tr to change B to F on lines containing 'B'. I tried this and it doesn't seem to work. #!/bin/bash tail -f...

8. Shell Programming and Scripting

tail for 15 mins

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

9. Shell Programming and Scripting

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...

10. Shell Programming and Scripting

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 OSF1

writesrv

writesrv(8)						      System Manager's Manual						       writesrv(8)

NAME

       writesrv - Lets users send messages to and receive messages from a remote system.

SYNOPSIS

       /usr/sbin/writesrv

DESCRIPTION

       The  writesrv daemon allows users to send messages to users on a remote system, and to receive responses from users on a remote system with
       the write command.

       The writesrv command receives incoming requests from a write command and creates a server process  to  handle  the  request.   This  server
       process communicates with the client process (write) and provides whatever services are requested.

       To perform these services, the writesrv daemon creates a socket on the port defined in the /etc/services file.  All requests for service go
       as messages to this socket.

       STARTING AND STOPPING writesrv.

       You can cause the writesrv daemon to be started during system boot with /sbin/init.d/write. The writesrv daemon starts automatically if the
       WRITESRV variable is defined properly in /etc/re.config. To start writesrv automatically during system boot, do the following as superuser.
	rcmgr set WRITESRV   yes

       To prevent writesrv from starting automatically during system boot, do the following as superuser:
	rcmgr set WRITESRV   no

       By default, writesrv is not set and therefore /usr/sbin/writesrv does not run.

       You can start the writesrv daemon manually as follows:
	/sbin/init.d/write   start

       You can stop writesrv manually as follows:
	/sbin/init.d/write   stop

NOTES

       If  the writesrv daemon terminates abnormally (that is, for a system crash, a power failure, or the kill -9 command), someone must manually
       clean out the /usr/spool/writesrv directory to remove any files left behind.

RELATED INFORMATION

       Commands:  write(1)

       Files: services(4) delim off

																       writesrv(8)

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