[cs631apue] Ls Midterm
Jan Schaumann
jschauma at stevens.edu
Tue Oct 11 09:59:28 EDT 2011
kbhamra <kbhamra at stevens.edu> wrote:
> 1) are we suppose to print out the contents in colouring format?
No - the manual page provided to you does not mention colors at all.
> 2) What exactly are we suppose to do with the environment? I do not
> quite understand the environment.
Your programs behaviour may change depending on the environment
variables noted in the manual page provided to you:
BLOCKSIZE If the environment variable BLOCKSIZE is set, and the -h and
-k options are not specified, the block counts (see -s) will be
displayed in units of that size block.
TZ The timezone to use when displaying dates. See environ(7) for
more information.
For example, run the following commands:
ls -l
export TZ=MET
ls -l
export TZ=Australia/Sydney
ls -l
unset TZ
ls -ls
export BLOCKSIZE=1024
ls -ls
export BLOCKSIZE=2048
ls -ls
See getenv(3).
-Jan
More information about the cs631apue
mailing list