[SOLVED] logging output at cmdline

NuUser · 03-26-2012, 04:18 PM

Hi, I want to open a logfile.log then execute several cmds at cmdline one at a time. The output should be log to logfile.log. Finally, when finish all the cmds, I want to save/close the logfile.log. My question, can I do this on linux?

suicidaleggroll · 03-26-2012, 04:20 PM

How automated do you want this to be?

Something as simple as appending ">> logfile.log" to each line might do what you need, ie:

Code:

command1 >> logfile.log
command2 >> logfile.log
command3 >> logfile.log

If you want things to be more automated, you could redirect stdio to logfile.log. You could also use "tee" to split output to both the console and the logfile.

T3RM1NVT0R · 03-26-2012, 04:22 PM

Hi NuUser,

Welcome to LQ!!!

Yes, it is possible and you can do it using script command as follows:

Code:

script -f <filename>

filename will be the name of the file in which you want to save the output. -f option is used to specify the filename. Once you execute this command it will show a message as below:

Quote:

Script started, file is <filename>

Again, filename will be the name you have given with script command above. This command will log everything that will type in the terminal. Remember this is only valid for the terminal you are working on. If you open up another terminal at the same time then it will not be ablicable to that terminal.

I hope this helps.

NuUser · 03-26-2012, 04:39 PM

Quote:

Originally Posted by T3RM1NVT0R

Hi NuUser,

Welcome to LQ!!!

Yes, it is possible and you can do it using script command as follows:

Code:

script -f <filename>

filename will be the name of the file in which you want to save the output. -f option is used to specify the filename. Once you execute this command it will show a message as below:

Again, filename will be the name you have given with script command above. This command will log everything that will type in the terminal. Remember this is only valid for the terminal you are working on. If you open up another terminal at the same time then it will not be ablicable to that terminal.

I hope this helps.

Thank you. But I tried as you mentioned the above script -f modesense.log, then I executed sg_modes ... after that, I vi modesense.log, and I see nothing. Do I have to close the logfile?

T3RM1NVT0R · 03-26-2012, 04:45 PM

Oops!!! Sorry I forgot to mention that you need to type exit to write to the log file. Once you will type exit it will display a message saying

Quote:

Script done, file is <filename>