Multiple tail -f commands

Login or Register for Dates, Times and to Reply

Thread Tools Search this Thread
# 1  
Multiple tail -f commands

I need to execute a program which will generate some alarms. I wish to capture those alarms in a single output file.

I executed with following command on linux:
tail -f test1.alarms -f test2.alarms|awk 'NR>20' >> output

But however when I tried to execute same on solaris platforms it fails. Also on solaris i need to execute commands in nohup so that they keep running as background processes even when i close the putty session.

Please share if anybody knows an alternative solution to this.
# 2  
Did you apply the command nohup in the linux as well ??
I am not getting anything if I add nohup to the given command even in linux.

May be you can refer to the below link for the justification why nohup is not working .
# 3  
Thanks for you input.

Firstly, on solaris command fails as it does not support multiple tail -f

Secondly, the solution provided in the link does not work because whenever I exit the putty session tail execution stops. However, my requirement is that it should continue executing in the background even if a exits a session till i kill its process id. Also solaris was not able identify disown command in that case.
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #38
Difficulty: Easy
The standard port number for SMTP applications is 25.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Pass Multiple Commands and Open Multiple Xterms via PSS

Hello, I'm attempting to open multiple xterms and run a command as an SAP user via sudo using PSSH. So far, I'm able to run PSSH to a file of servers with no check for keys, open every xterm in to the servers in the file list, and SUDO to the SAP(ADM) user, but it won't do anything else... (11 Replies)
Discussion started by: icemanj
11 Replies

2. UNIX for Dummies Questions & Answers

Beginner UNIX question. tail and find commands

hey guys, i'm in a unix course.. and while this is a homework question - i did put alittle effort into it. just wanted to ask before trial and error drives me nuts. question 13 has us saving the last 30 characters of a file into another file and question 14 has us saving the list of all the... (1 Reply)
Discussion started by: labelthief
1 Replies

3. 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... (2 Replies)
Discussion started by: kayak
2 Replies

4. Shell Programming and Scripting

prevent multiple tail in back ground

Dears i have a scrip run in unix that need to use the tail -f command, as below: DATE=`date '+%m%d%y'` tail -f /var/messages | grep "start" >> /export/logs/start_${DATE}.out but the problem that the tail -f will be stop and working in the background in then end of the day (23:59:59)... (0 Replies)
Discussion started by: thehero
0 Replies

5. Shell Programming and Scripting

perform 3 awk commands to multiple files in multiple directories

Hi, I have a directory /home/datasets/ which contains a bunch (720) of subdirectories called hour_1/ hour_2/ etc..etc.. in each of these there is a single text file called (hour_1.txt in hour_1/ , hour_2.txt for hour_2/ etc..etc..) and i would like to do some text processing in them. Each of... (20 Replies)
Discussion started by: amarn
20 Replies

6. Shell Programming and Scripting

tail -f for multiple files

Is there a way to view the log progress from multiple files. For eg: I have 10 log files from 10 different instances. Instead of opening 10 terminal and doing tail -f on each, is it possible to view all the log changes in one tail -f? Say I have file1,file2 .. file10 I have tried tail -f... (9 Replies)
Discussion started by: un1xl0ver_rwx
9 Replies

7. Solaris

Help with executing multiple remote commands after multiple hops

Hi SSHers, I have embedded this below code in my shell script.. /usr/bin/ssh -t $USER@$SERVER1 /usr/bin/ssh $USER2@S$SERVER2 echo uptime:`/opt/OV/bin/snmpget -r 0 -t 60 $nodeName system.3.0 | cut -d: -f3-5` SSH to both these servers are public-key authenticated, so things run... (13 Replies)
Discussion started by: LinuxUser2008
13 Replies

8. Shell Programming and Scripting

head / tail combination returns multiple rows

Hi, As part of our project, we need to load historical data for a year before our system is live. We have the data feed files that we need to load. However, I need to make sure that the file structure (number of fields separated by a comma) on the field is same for all the files of the same... (1 Reply)
Discussion started by: raj.jha
1 Replies

9. UNIX for Dummies Questions & Answers

Display lines 30 to 40 of a text file using head and/or tail commands

Assume that the text file contains over 40 lines. How do you do this?!?!? (5 Replies)
Discussion started by: phunkypants
5 Replies

10. Solaris

Tail for multiple files

Hi there, I'm trying to run a simple command in Solaris 10: tail -10 *.log But this gives me in the output just last 10 rows of a SINGLE log file :eek: (and there are many in active directory). Please, do you have any idea what's the problem? :confused: Is it a Solaris issue? Thank you in... (2 Replies)
Discussion started by: MartinF
2 Replies

Featured Tech Videos