Tip/Tricks/Guides that work for any distribution (or at least should).

• Save both standard output and error message:

  >&

• Save standard output only:

  >

  or

  1>

• Save error messages only:

  2>

These can be combined, like so:

gcc test.c 2> error.msg > /dev/null

This saves error messages but tosses standard output

Example:

yum -y update &

Output:

[1]   21457

This only works when the user is logged on.

Use fg.

Example:

fg %1

or

fg 21457

Misc:

kill %1

nukes it.

ffmpeg -i video_file directory/filename.%04d.png