Linux+ Cert Practice Question

fakie_flip · 06-08-2012, 11:08 PM

Quote:

You want to run an interactive script, gabby, which produces a lot of output in response to the user's inputs. To facilitate future study of this script, you want to copy its output to a file. How might you do this?

gabby > gabby-out.txt

gabby | tee gabby-out.txt

gabby < gabby-out.txt

gabby &> gabby-out.txt

I don't have an interactive script that I know of, so i decided to use gpg --gen-key because it's interactive. The last command captured the stderr, but not the stdout.

Code:

203/3954MB      0.98 1.07 1.05 3/492 19386
[19065:2023 0:301] 11:15:15 Fri Jun 08 [bull@beastlinux: +2] ~ 
(2:301)$ gpg --gen-key > /tmp/gabby-out.txt
gpg (GnuPG) 1.4.12; Copyright (C) 2012 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 
gpg: Interrupt caught ... exiting

202/3954MB      1.05 1.08 1.05 1/492 19392
[19065:2023 0:302] 11:15:23 Fri Jun 08 [bull@beastlinux: +2] ~ 
(2:302)$ cat /tmp/gabby-out.txt 
202/3954MB      1.05 1.08 1.05 1/492 19398
[19065:2023 0:303] 11:15:26 Fri Jun 08 [bull@beastlinux: +2] ~ 
(2:303)$ gpg --gen-key | tee /tmp/gabby-out.txt
gpg (GnuPG) 1.4.12; Copyright (C) 2012 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 
gpg: Interrupt caught ... exiting

200/3954MB      1.11 1.10 1.05 1/492 19407
[19065:2023 0:304] 11:15:36 Fri Jun 08 [bull@beastlinux: +2] ~ 
(2:304)$ cat /tmp/gabby-out.txt 
182/3954MB      1.24 1.13 1.06 1/492 19414
[19065:2023 0:305] 11:15:50 Fri Jun 08 [bull@beastlinux: +2] ~ 
(2:305)$ gpg --gen-key &> /tmp/gabby-out.txt
Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 
176/3954MB      1.41 1.17 1.08 1/490 19420
[19065:2023 0:306] 11:16:01 Fri Jun 08 [bull@beastlinux: +2] ~
(2:306)$ cat /tmp/gabby-out.txt 
gpg (GnuPG) 1.4.12; Copyright (C) 2012 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


gpg: Interrupt caught ... exiting
176/3954MB      1.29 1.15 1.07 1/490 19426
[19065:2023 0:307] 11:16:06 Fri Jun 08 [bull@beastlinux: +2] ~ 
(2:307)$

Cultist · 06-09-2012, 12:16 AM

edit: misread part of the question. Ignore me.