[cs631apue] blocks (-s) & size (-k -h)
sshah83
sshah83 at stevens.edu
Fri Oct 17 10:49:22 EDT 2014
Linux ls -s displays the number of blocks allocated to each file in unit
of 1024 bytes or BLOCKSIZE environment variable (if it's set). for
example
1) ls -s (if no BLOCKSIZE env variable is set)
- file_blk_size = (st_blocks*512)/1024.0
2) export BLOCKSIZE = 200
ls -s
- file_blk_size = (st_blocks*512)/env_blksize
in both above cases if file_blk_size comes in decimal, you have to round
that partial unit to next integer value.
Now if -k or -h is combined with ls -s it modifies the ouput of ls -s
command in the sen
On 10/17/2014 12:50 AM, xxu15 at stevens.edu wrote:
>
> Hi,
> -k or -h is to show the file size, they override each other.
>
> -s is to show the total number of blocks, which is a separate column.
> So, I DON'T UNDERSTAND, IN LS.PDF, WHAT'S THE MEANING OF "-K / -H
> MODIFIES THE -S OPTION".
>
> -------------------------
>
> Sincerely,
> Xiang Xu (徐祥)
> Student ID: 10388813
> tel: +1 (201) 918-0570
> +86 13851478402
> qq: 185904095
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