Shell Script : How to use Tee command with sed command

Question

Before:

main 2>&1 | tee -a $log_file;

This is working fine but it is throwing stderr in $log_file as shown below. I want to replace:

"ERROR (version 5.3.0.0-213, build 1 from 2015-02-02_12-17-08 by buildguy) : (stderr)"

With:

"NOTE (version 5.3.0.0-213, build 1 from 2015-02-02_12-17-08 by buildguy) : (stderr)"

I want the version and date to be in regex format.

After:

main 2>&1 | tee -a | sed -i 's|ERROR (version 5.3.0.0-213, build 1 from 2015-02-02_12-17-08 by buildguy) : (stderr)|NOTE (version 5.3.0.0-213, build 1 from 2015-02-02_12-17-08 by buildguy) : (stderr)|g' $log_file;

Error which are coming at downloading time

Few lines coming at the end(The lines are jumbled)

Answer 1

You should precise your need, it's pretty hard to read your code by now.

There is two option here :

• You get the mainstream and alternate him before saving into your log file
• You format your log file at the end

First option

I can't test it, however, it should be like this :

main 2>&1 | SED COMMAND | tee -a $log_file

Second option

Tested, it works.

sed -i "s/ERROR (version 5.3.0.0-213, build 1 from 2015-02-02_12-17-08 by buildguy) : (stderr)/NOTE (version 5.3.0.0-213, build 1 from 2015-02-02_12-17-08 by buildguy) : (stderr)/g" $log_file

Sed will edit the file specified inline because of -i option.

REGEX

If you want to change all ERROR by NOTE , then, you should just use this sed command

sed -i "s/ERROR/NOTE/g" $log_file;

And if you want to be more specific, take a look at this answer : using SED with wildcard

Answer 2

Could you try this;

main 2>&1 | sed "/ERROR.*[0-9]\{1\}.[0-9]\{1\}.[0-9]\{1\}.[0-9]\{1\}-[0-9]\{3\}.*20[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}_[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}.*(stderr)/ s/ERROR/INFO/" | tee -a $log_file

To find version, the regex;

[0-9]\{1\}.[0-9]\{1\}.[0-9]\{1\}.[0-9]\{1\}-[0-9]\{3\}  :

To find date, regex : for example (2015-02-02_12-17-08)

20[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}_[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}

if date is like 2015-12-03 11.37.25, you should use

20[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\} [0-9]\{2\}.[0-9]\{2\}.[0-9]\{2\}