Last Modified: 2017-08-25 10:57:10
TODO:
grep
expect
awk
sed
xargs
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Last Modified: 2017-08-25 10:53:10
193. Valid Phone Numbers
195. Tenth Line
192. Word Frequency
194. Tranpose File
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Last Modified: 2017-07-31 11:18:00
Acknowledge
What is shell?
The shell is a program that takes keyboard commands and passes them to the operating system to carry out.
Almost all Linux distributions supply a shell program from the GNU Project called bash.
Bash is an enhanced replacement for sh, the original Unix shell program written by Steve Bourne.
What is terminal emulator?
We use a terminal emulator to interact with the shell when using a GUI.
KDE uses konsole and GNOME uses gnome-terminal, though it’s likely called simply “terminal” on our menu.
Shell prompt[me@linuxbox ~]$
Some Simple Commands
date - Display the current time and date.
cal - Display a calendar of the current month.
df - Display the current amount of free space on your disk drives.
free - Display the amount of free memory.
exit - End the terminal session.
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