log script input and output using tee ?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Using tee command with ablity to provide input for prompts

OS version: RHEL 7.4 Shell : bash I would like to capture command outputs using tee like # yum upgrade | tee yumupgradeLog But, if I use tee command, I cannot respond to prompts like Is this ok : during command execution as shown below. Is there a way I could use tee and still be able to...

2. UNIX for Dummies Questions & Answers

Cat Input & Output to a Log file

Team, we use below command to store the contents in a logfile. cat a.txt > a.log a.txt content is 123 345 Is there any options available to store the command used also? for eg a.log may show as cat a.txt 123 345

3. Shell Programming and Scripting

Script output as input for next command

Hi All, Hoping you can help as im in desperate need... I'm very new to unix scripting so apoligies, I have setup an expect script in order to log into a node on our network, This will provide an output as per the below *********** information: *************: n/a TEST IP : n/a ...

4. Shell Programming and Scripting

Capturing script output and input to log

Hi Is there a way that I can capture a shell script (both output and input) to a log file where I can analyze it? Thanks

5. Shell Programming and Scripting

problem with suppressed output to file using echo and tee command

Hi, When I run the following command in terminal it works. The string TEST is appended to a file silently. echo TEST | tee -a file.txt &>/dev/null However, when I paste this same line to a file, say shell1.sh, and use bourne shell . I run this file in terminal, ./shell1.sh. However I...

6. UNIX for Dummies Questions & Answers

tee vs output redirection confusion

ok, suppose i have a file called f1 $ cat f1 this is file1 the quick brown fox jumped over the lazy dog this is file1 who let the dogs out this is unix this is file1 and i have another file f2 $ cat f2 this is file2 the task is to eliminate the repeated lines in f1 and add the...

7. Shell Programming and Scripting

How Unix tee to send pipeline output to 2 pipes ?

Hi, I would like to process, filter the same ASCII asynchronous live data stream in more than one pipe pipeline. So the one pipeline should filter out some records using grep key word and more than one pipes pipelines each should grep for another key words, each set seperately for each...

8. Shell Programming and Scripting

Duplicate output without tee

Hi, Is there anyway to duplicate output without using tee? Let me explain the problem. We are use ssh to login to remote server and save output to a file using tee commands for auditing purposes. When we use vi editor in ssh session, letters get garbled and cant really use vi. Without tee it...

9. Shell Programming and Scripting

Shell script getting input from output

I have a program that can be run in terminal, when its run it either returns SSH OK or CRITICAL, how do i use the output in my script? good ./check_sh myserver SSH OK bad ./check_sh myserver CRITICAL I want to store it in a variable btw, SSH OK will give the variable $SSH=1 and if its...

10. Shell Programming and Scripting

Asking about shell script input output redirection

Hi, Can anyone please tell me what these lines do? ls >& outfile ls outfile 2>&1 Thanks.

LEARN ABOUT OSF1

tee

tee(1)							      General Commands Manual							    tee(1)

NAME

       tee - Displays the output of a program and copies it into a file

SYNOPSIS

       tee [-ai] file...

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       tee:  XCU5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

OPTIONS

       Adds the output to the end of file instead of writing over it.  Ignores the SIGINT signal.

OPERANDS

       Standard input is stored into, or appended to, the file specified.

	      [Tru64 UNIX]  The tee command can accept up to 20 file arguments.

DESCRIPTION

       The tee command reads standard input and writes to both standard output, and each specified file.

       The tee command is useful when you wish to view program output as it is displayed, and also want to save it in a file. The tee command does
       not buffer output, so you may wish to pipe the output of tee to more if more than one full screen of data is anticipated.

NOTES

       If a write to any file fails, the exit status of tee will be non-zero.  Writes to all other specified files may be successful,  and  opera-
       tion will continue until standard input is exhausted.

EXIT STATUS

       The following exit values are returned: Successful completion.  An error occurred.

EXAMPLES

       To view and save the output from a command at the same time, enter: lint program.c | tee program.lint

	      This displays the standard output of the command lint program.c at the terminal, and at the same time saves a copy of it in the file
	      program.lint. If program.lint already exists, it is deleted and replaced.  To display and append to a file, enter: lint program.c  |
	      tee -a program.lint

	      This  displays  the  standard  output of lint program.c at the terminal and at the same time appends a copy of it to the end of pro-
	      gram.lint.  If the file program.lint does not exist, it is created.

ENVIRONMENT VARIABLES

       The following environment variables affect the execution of tee: Provides a default value for the internationalization variables  that  are
       unset or null. If LANG is unset or null, the corresponding value from the default locale is used.  If any of the internationalization vari-
       ables contain an invalid setting, the utility behaves as if none of the variables had been defined.  If set to a  non-empty  string  value,
       overrides  the  values of all the other internationalization variables.	Determines the locale for the interpretation of sequences of bytes
       of text data as characters (for example, single-byte as opposed to multibyte characters in arguments).  Determines the locale for the  for-
       mat  and  contents  of  diagnostic messages written to standard error.  Determines the location of message catalogues for the processing of
       LC_MESSAGES.

SEE ALSO

       Commands:  cat(1), echo(1), script(1)

       Standards:  standards(5)

																	    tee(1)

Shell Programming and Scripting