Dynamically redirect output to duplicate files ???


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
# 1  
Dynamically redirect output to duplicate files ???

Hi

There are many posts in this forum regarding reditecting output, but mine is a different problem, please have a look.

My shell script is redirecting output to a log file dynamically. That is it is using -
exec > log1.txt 2>&1
Hence all the traces are appearing in the log1.txt.

I want to redirect the same output to another file log2.txt which will contain the same thing that log1.txt is holding. I have tried in many different ways but nothing is working. "tee" isn't working here like -
exec > log1.txt 2>&1 | tee -a log2.txt

Can you please help me regarding this, I am totally clueless.

Thanks
Nirmalya Sinha
# 2  
try this, cmd 2>&1 | tee -a log1.txt >> log2.txt
# 3  
Hi timontt

Thank you sooooo much for the reply. Your script is working fine, but in that case I have to append every command to be executed with "2>&1 | tee -a log1.txt >> log2.txt". But in my case the flow of scripts is huge, it jumps from this script and that, many commands are being executed. So to append that stuff everywhere is just next to impossible. When I am writing "exec > log1.txt 2>&1" in the parent shell, all the traces for all the child shells are appearing in the log1.txt and I wanted to duplicate that.

Actually when I am writing "exec > log1.txt", the "stdin" is permanently redirected to log1.txt for the lifetime of the parent shell and hence I can't redirect the output to somewhere else. So I can't solve the issue in that "exec" way. Anyway I could able to solve the problem in other way with other logic.

Thanks again ...

Nirmalya
# 4  
With zsh:

Code:
zsh 4.3.4% { print $ZSH_VERSION;x;} >log1 >log2 2>&1
zsh 4.3.4% cat log1
4.3.4
zsh: command not found: x
zsh 4.3.4% cat log2
4.3.4
zsh: command not found: x
zsh 4.3.4%

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 #983
Difficulty: Medium
The first official NetBSD release, NetBSD 0.1, was made on 9 April 1991.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Print loop output on same line dynamically

Hi, I am trying to print copy percentage completion dynamically by using the script below, #!/bin/bash dest_size=0 orig_size=`du -sk $sourcefile | awk '{print $1}'` while ; do dest_size=`du -sk $destfile | awk '{print $1}'` coyp_percentage=`echo "scale=2; $dest_size*100/$orig_size"... (4 Replies)
Discussion started by: Sumanthsv
4 Replies

2. Shell Programming and Scripting

Redirect script output to a file and mail the output

Hi Guys, I want to redirect the output of 3 scripts to a file and then mail the output of those three scripts. I used below but it is not working: OFILE=/home/home1/report1 echo "report1 details" > $OFILE =/home/home1/1.sh > $OFILE echo... (7 Replies)
Discussion started by: Vivekit82
7 Replies

3. Shell Programming and Scripting

Duplicate files and output list

Gents, I have a file like this. 1 1 1 2 2 3 2 4 2 5 3 6 3 7 4 8 5 9 I would like to get something like it 1 1 2 2 3 4 5 3 6 7 Thanks in advance for your support :b: (8 Replies)
Discussion started by: jiam912
8 Replies

4. Shell Programming and Scripting

script to mail monitoring output if required or redirect output to log file

Below script perfectly works, giving below mail output. BUT, I want to make the script mail only if there are any D-Defined/T-Transition/B-Broken State WPARs and also to copy the output generated during monitoring to a temporary log file, which gets cleaned up every week. Need suggestions. ... (4 Replies)
Discussion started by: aix_admin_007
4 Replies

5. Shell Programming and Scripting

Redirect Output and Error in 2 different files

hi, i want to redirect my output & error if generated to two different files. I have written the code for redirecting the output, i dnt have ne idea how to go abt it for errors. I tried spooling which was given in one of the threads on this forum.But it didn't work.The script i wrote as a lot... (4 Replies)
Discussion started by: bankimmehta
4 Replies

6. Shell Programming and Scripting

How to redirect the output to multiple files without putting on console

How to redirect the output to multiple files without putting on console I tried tee but it writes to STDOUT , which I do not want. Test.sh ------------------ #!/bin/ksh echo "Hello " tee -a file1 file2 ---------------------------- $>./Test.sh $> Expected output: -------------------... (2 Replies)
Discussion started by: prashant43
2 Replies

7. Shell Programming and Scripting

Find duplicate value comparing 2 files and create an output

I need a perl script which will create an output file after comparing two diff file in a directory path: /export/home/abc/file1 /export/home/abc/file2 File Format: <IP>TAB<DeviceName><TAB>DESCRIPTIONS file1: 10.1.2.1.3<tab>abc123def<tab>xyz.mm1.ppp.... (2 Replies)
Discussion started by: ricky007
2 Replies

8. Shell Programming and Scripting

How redirect output(error and normal) to 2 different files

Hello, I have a java program which i am calling in shell script. I wanted to redirect output to 2 differetn files. Output should have both 1 & 2 (normal and error) in both file. pls help (2 Replies)
Discussion started by: balareddy
2 Replies

9. UNIX for Dummies Questions & Answers

How to redirect duplicate lines from a file????

Hi, I am having a file which contains many duplicate lines. I wanted to redirect these duplicate lines into another file. Suppose I have a file called file_dup.txt which contains some line as file_dup.txt A100-R1 ACCOUNTING-CONTROL ACTONA-ACTASTOR ADMIN-AUTH-STATS ACTONA-ACTASTOR... (3 Replies)
Discussion started by: zing_foru
3 Replies

10. UNIX for Dummies Questions & Answers

Redirect output to multiple files.

Hi, I am new to shell scripting and have a question. I would like to redirect the output of a command to multiple files, each file holding the exact same copy. From what I read from the bash manpage and from some searching it seems it cannot be done within the shell except setting up a loop. Is... (3 Replies)
Discussion started by: cbkihong
3 Replies

Featured Tech Videos