redirecting STDOUT & STDERR


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting redirecting STDOUT & STDERR
# 1  
Old 06-20-2007
redirecting STDOUT & STDERR

In bash, I need to send the STDOUT and STDERR from a command to one file, and then just STDERR to another file. Doing one or the other using redirects is easy, but trying to do both at once is a bit tricky. Anyone have any ideas?
# 2  
Old 06-20-2007
my_command >/my/file 2>&1

bash has a shortcut for this

my_command &>/my/file

Cheers
ZB
# 3  
Old 06-20-2007
That works for combining them, but I need to capture both in one file and capture SDTERR in another file. Can you go further?
# 4  
Old 06-20-2007
my_command >/path/to/stdout.txt 2>/path/to/stderr.txt

man bash for details
# 5  
Old 06-20-2007
That command will separate them in separate files, but again, I need both in one file and just STDERR in another file.
# 6  
Old 06-21-2007
Try "tee" for the stderr.
# 7  
Old 06-21-2007
I've been using tee, but the best I can do is direct STDOUT and STDERR to the screen and STDERR to a file. I need both sets in separate files. Here's the command I've been playing with:

cat input.file1 input.file2 3>&1 >&2 2>&3 3>&- |tee test.log

I grabbed it from post on this forum:

https://www.unix.com/shell-programming-and-scripting/7644-tee-stderr-output-ksh.html
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Redirect STDOUT & STDERR to file and then on screen

Dear all, redirecting STDOUT & STDERR to file is quite simple, I'm currently using: Code: exec 1>>/tmp/tmp.log; exec 2>>/tmp/tmp.log But during script execution I would like the output come back again to screen, how to do that? Thanks Luc edit by bakunin: please use CODE-tags like the... (6 Replies)
Discussion started by: tmonk1
6 Replies

2. Shell Programming and Scripting

Lost redirecting stderr & stdout to 3 files - one each plus combined

Hi folks I need/want to redirect output (stdout, stderr) from an exec call to separate files. One for stderr only and two(!) different (!) ones for the combined output of stderr and stdout. After some research and testing i got this so far : (( exec ${command} ${command_parameters} 3>&1... (6 Replies)
Discussion started by: MDominok
6 Replies

3. Shell Programming and Scripting

Redirect STDOUT & STDERR to file and then on screen

Dear all, redirecting STDOUT & STDERR to file is quite simple, I'm currently using: exec 1>>/tmp/tmp.log; exec 2>>/tmp/tmp.logBut during script execution I would like the output come back again to screen, how to do that? Thanks Lucas (4 Replies)
Discussion started by: Lord Spectre
4 Replies

4. Shell Programming and Scripting

Prepend TimeStamp to STDERR & STDOUT to a file

Currently I am redirecting STDERR and STDOUT to a log file by doing the following { My KSH script contents } 2>&1 | $DEBUGLOG Problem is the STDERR & STDOUT do not have any date/time associated. I want this to be something that i can embed into a script opposed to an argument I use... (4 Replies)
Discussion started by: nitrobass24
4 Replies

5. Shell Programming and Scripting

Preserve output order when redirecting stdout and stderr

Hi, I already searched through the forum and tried to find a answer for my problem but I didn't found a full working solution, thats way I start this new thread and hope, some can help out. I wonder that I'm not able to find a working solution for the following scenario: Working in bash I... (8 Replies)
Discussion started by: Boemm
8 Replies

6. Solaris

Handling Stdout&StdErr for background jobs.

Hello Friends, sorry, i am not very familiar with Unix programming. Could you please help me on this? We have to start different components from a startup script. each components are started as below in the background in a startprocess function $nohup $file $args >>$logFile 2>&1 & ... (1 Reply)
Discussion started by: alvinbush
1 Replies

7. Shell Programming and Scripting

Redirecting STDERR message to STDOUT & file at same time

Friends I have to redirect STDERR messages both to screen and also capture the same in a file. 2 > &1 | tee file works but it also displays the non error messages to file, while i only need error messages. Can anyone help?? (10 Replies)
Discussion started by: vikashtulsiyan
10 Replies

8. UNIX for Advanced & Expert Users

combined stdout & stderr

Hello Everyone! I'm trying to combine output for standard output and for possible standard error to the log file. I was trying to use tee command, but it turned out if error occurred error output will be send to the screen only and will not be redirected with tee command to the log file. Anyone... (11 Replies)
Discussion started by: slavam
11 Replies

9. Shell Programming and Scripting

getting stderr & stdout output lively modified

This is about getting all output to stderr and stdout localized. Nothing to do with redirecting output to a file (there already are some interesting threads about that issue on this forum). What I intend to do is capturing all lines of text sent to the screen, compare them with an array of... (2 Replies)
Discussion started by: teo ramirez
2 Replies

10. Shell Programming and Scripting

stderr & stdout to a file and the right exit code

Hi all, I need to redirect stdout and stderr to a file in a ksh shell. That's not a problem. But I need also the correct exit code for the executed command. In the example below I redirect correctly the stdout & stderr to a file, but I have the exit code of tee command and not for the mv... (2 Replies)
Discussion started by: up69
2 Replies
Login or Register to Ask a Question