topic Re: script command in Operating System - HP-UX

script command

Shivkumar — Thu, 12 Oct 2006 23:17:51 GMT

Hi,

I used $script abc.txt command to store the screen output of various commands.

But i saw various junk characters in the output. i think there are line feed, enter and other key strokes also which make screen output very difficult to understand.

Is there any trick to filter out this or use some way to avoid keystroke/linefeed etc in output file ?

Thanks,
Shiv

Re: script command

Patrick Wallek — Thu, 12 Oct 2006 23:28:29 GMT

If you are trying to use script to capture something like SAM, or some menu based application, then you are not going to have very good luck.

script is really just meant for basic command line capture, nothing fancy.

Re: script command

Yogeeraj_1 — Fri, 13 Oct 2006 00:55:44 GMT

hi Shiv,

i agree with Patrick.

Something i find useful in case i am waiting for a particular command is use something similar to:

tail -f abc.txt | grep -i "command that i am waiting"

hope this helps!

kind regards
yogeeraj

Re: script command

Yang Qin_1 — Fri, 13 Oct 2006 01:40:07 GMT

You may try dos2ux abc.txt > def.txt

Yang

Re: script command

rariasn — Fri, 13 Oct 2006 02:38:37 GMT

Hi Shivkumar,

cat abc.txt|grep -vE "\[|\^"

rgs

Re: script command

Raj D. — Fri, 13 Oct 2006 03:14:11 GMT

Shiv,

script command will not only give you about the command history , but also it will give the output of the commands .
Also if any menu driven program used in the session it will log that too, and junk and control characters will fill in the log file . so be careful to have much space on that filesystem to log entire activity.

cheers,
Raj.

Re: script command

Raj D. — Fri, 13 Oct 2006 03:16:18 GMT

Shiv,

For example if u are using on that session:

$ ls -l

It will log 'ls -l' along with the output of it.

Secendly if you use 'sam' or 'glance' it will capture all the charcters with control characters.

Cheers,
Raj.

Re: script command

Bill Hassell — Fri, 13 Oct 2006 12:30:16 GMT

You are seeing exactly what was sent to/from the connection. You can filter out the special codes (due to menus and special character enhancements) with something like:

cat -v abc.txt
or
tr -d ["\000-\011\013-\037"] abc.txt
or
tr -d ["\000-\011\013-\037\200-\377"] abc.txt

but to make it look nice, you have to decide what 'looks nice'. That's because it all depends on what you intend for this file. It won't look like the terminal unless it is played back on the same type of terminal.

Re: script command

vinod_25 — Sun, 05 Nov 2006 03:26:39 GMT

Hi Shiv,

Use SED with the following options...

# ./script | sed 's/\x00//g' > abc.txt

Shiv you are so kind in assigning points...

Regards,
Vinod