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We have discussed how write permission controls the ability to change the data in a file. But how about changing the permission bits, the owner, the group, and even the timestamps? No one can...

Unix keeps 3 timestamps for each file: mtime, ctime, and atime. Most people seem to understand atime (access time), it is when the file was last read. There does seem to be some confusion between...

Just for information, if you're using GNU date, you can do some *very* cool stuff with the "-d" option like

$ # get yesterdays date and format the output
$ date -d "yesterday" +"%d %b %Y"
10 Jan...

hello from Brazil! My english is not good but i will try...
Im a Ubuntu user and i got yesterday's date like this

(for yesterday)
date -d yesterday

(for 2 days ago)
date -d 2yesterday
...

Well, I'm bored this afternoon...so#!/usr/bin/ksh

set -A months 0 31 28 31 30 31 30 31 31 30 31 30 31
typeset -Z2 month_y day_y

today=$(date +%m%d%Y)

month_t=${today%??????}...

We really don't (yet) have a posting that addresses the general problem of number of days between two dates. So I have just finished what should be the last date calculation script that I ever...

GitHub - deepgrace/tetris: Tetris implementation in all kinds of Programming Languages (https://github.com/deepgrace/tetris)

Usage: bash Tetris_Game [ <runlevel> [ <previewlevel> [ <speedlevel> [...