Practical Linux - Part 05 - Shell & Manual | Shell与帮助手册
- Oct 7 - Shell & Manual
- Shell
- Bash
- Commands
command [-options] [--options] parameter1 parameter2...- whitespace in command
Enter to execute\ to escape newline- case sensitive
- Indicator
- [username@hostname workingpath]identity
- workingpath: ~ = home
- identity = $ | #
- Examples
- ls -al ~
- ls -al ~
- ls -a -l ~
- date
- Date
- DATE
- date +%Y/%m/%d
- date +%H:%M
- Shortcuts
- Man (Manual)
- How many available command?
ls -l /usr/bin | wc -l
man- Example:
man date
- man page code man7.org/linux/man-pages/man7/man-pages.7.html
- navigation:
- space | up | down | page up | page down | home | end
- searching:
- quit:
man -f manman 1 man
- Practice
- try the examples
- try placing extra whitespace in your commands
- execute the commands we’ve mentioned so far
cdlssshcatdate- *
ping
- *
ifconfig
- execute a multi-line command
- checkout the manual of
sudo & su command
- exam the difference of home directory & identity
- checkout the manual of the commands we’ve mentioned so far, try to browse and understand the info
cd ls ssh cat date ping ifconfig wc
- Assignment
- checkout the manual of
touch command
- log on your amazon vm
- create the following empty files in your home directory
- ‘touchme.txt’
- ‘touch me’
- ‘Touch Me’