While watching this video, your job is to count how many times the players in white shirt pass the ball.
Tips on changing file permissions in bulk.
First command – changes all files under the current directory to 700 file mode.
find . -type d -exec chmod 0700 {} \;
Second command – changes all directories under the current directory to 600 mode.
find . -type f -exec chmod 0600 {} \;
The ‘history’ commands does not display the exact date and time of the commands executed. It just shows a numeric id followed by the command executed by the current user. Here is one way of putting a time stamp –
# export HISTTIMEFORMAT=’%F %T >> ‘
To make sure that it works every time you login or restart your machine, put it in $HOME/.bash_profile
Some times you might be able to execute very complex commands and write pages of shell scripts and yet find your-self in a clueless situation, like the seemingly mundane task of setting the data/time in your Linux box from the command line. Here are a couple of ways that might help –
1. Using /etc/localtime and /usr/share/zoneinfo
Create a link to the file in /usr/share/zoneinfo which contains the time zone you want to set your clock to.
#ln -s /usr/share/zoneinfo/America/New_York /etc/localtime
2. Edit /etc/sysconfig/clock
#vi /etc/sysconfig/clock
-set the “ZONE” variable to your region – like “US/Central”
3. Export command
#Export TZ=America/New_York
4. Simply the date command
format-> #date MMDDhhmmYYYY
#date 070913312010
5. Hardware clock
#hwclock –set –date=”07/09/2010 13:19:55″