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Bash script log to file and stdout

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How do you write a log file in Unix shell script? To write output of Bash Command to Log File, you may use right angle bracket symbol (>) or double right angle symbol (>>). Right angle braketsymbol (>) : is used to write output of a bash command to a disk file. If the file is not already present, it creates one with the name specified..

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I am redirecting some tool stdout to tee command so that current progress can be seen on terminal as well as in the log file. Here is the code snippet where I am running tool and its stdout is fed to tee command and this code snippet is written from tcl script.

Bash script log to file and stdout

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Last time, in Part 3 of this bash scripting series, we talked about command line parameters and switches. Our topic today is input, output, and everything related to this. Sometimes something needs. Here, the | sign is responsible for piping. The output echo generates is written in the stdout stream. Then, the piping redirects the content of stdout to stdin for the grep command. That’s how grep knows what content to perform the operation on. If you want to pipe both the stderr and stdout to the next command, then use the “|&” instead.. ./script >> logfile.log 2>&1 This will place STDERR and STROUT into the logfile.log. Good Luck, Tony. TioTony: ... 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.. How do you write a log file in Unix shell script? To write output of Bash Command to Log File, you may use right angle bracket symbol (>) or double right angle symbol (>>). Right angle braketsymbol (>) : is used to write output of a bash command to a disk file. If the file is not already present, it creates one with the name specified..




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