Shell-5.shell echo Command

Shell-5.shell echo Command

Echo---display content

Format: Echo [options] Text
-N Do not wrap in the last line
-E parsing escape character
\a issued a warning sound
\c Finally, no newline symbol is added.
\f Line break
\ r Enter

1.-N do not wrap in the last line
[[email protected] ~]# Echo-n "My name is"; echo "Yuanji"
My name is Yuanji
[[email protected] ~]# echo "My name is"; echo "Yuanji"
My name is
Yuanji

2.-e parsing escape character
[Email protected] ~]# ECHO-E "There is three empty lines.\n\n\n"; echo "------"
There is three empty lines.



------
[Email protected] ~]# echo "There is three empty lines.\n\n\n"; echo "------"
There is three empty lines.\n\n\n
------

3. ECHO-E Display Color(This part comes from http://www.cnblogs.com/lr-ting/archive/2013/02/28/2936792.html, the author writes very clearly)
----------------------------------
echo Display in shell script with color display, echo display with color, need to use parameter-E
The format is as follows:

Echo-e "\033[word background color; text color m string \033[0m"
For example:
Echo-e "\033[41;36m something here \033[0m"

Where 41 of the position represents the background, 36 of the position is the color of the word
Note:
1, the word background color and the text color is in English ""
2. There is a m behind the text color
3, before and after the string can have no space, if any, the output is also a space
Here is the corresponding word and background color, you can try to find out the different color collocation
Cases

Echo-e "\033[31m Red word \033[0m"
Echo-e "\033[34m Yellow word \033[0m"
Echo-e "\033[41;33m Red bottom yellow word \033[0m"
Echo-e "\033[41;37m Red bottom White \033[0m"

Word Color: 30-–37
Echo-e "\033[30m Black character \033[0m"
Echo-e "\033[31m Red word \033[0m"
Echo-e "\033[32m Green word \033[0m"
Echo-e "\033[33m Yellow word \033[0m"
Echo-e "\033[34m Blue word \033[0m"
Echo-e "\033[35m Purple word \033[0m"
Echo-e "\033[36m sky blue Word \033[0m"
Echo-e "\033[37m White character \033[0m"

Word background color range: 40-–47
Echo-e "\033[40;37m Black Bottom White \033[0m"
Echo-e "\033[41;37m Red bottom White \033[0m"
Echo-e "\033[42;37m Green bottom White \033[0m"
Echo-e "\033[43;37m Yellow \033[0m"
Echo-e "\033[44;37m Blue bottom White \033[0m"
Echo-e "\033[45;37m Purple \033[0m"
Echo-e "\033[46;37m sky blue Bottom White \033[0m"
Echo-e "\033[47;30m black character \033[0m on white background"

Last Face Control option description
\33[0m Close All Properties
\33[1m Setting High brightness
\33[4m Underline
\33[5m Flashing
\33[7M Reverse Display
\33[8m blanking
\33[30m-\33[37m Setting the foreground color
\33[40m-\33[47m Setting the background color
\33[na the cursor to move n rows
\33[NB cursor down n rows
\33[NC cursor right shifts n rows
\33[nd cursor left n rows
\33[Y;XH Setting the cursor position
\33[2J Clear Screen
\33[k clears the contents from the cursor to the end of the line
\33[s Save Cursor position
\33[u Restore cursor Position
\33[?25l Hide Cursor
\33[?25h Display cursor
----------------------------------


4. Example: In the following section you will see the function defined in the SH file (part of the function is followed up)
[email protected] ~]# cat four.sh
#!/bin/sh
Echo_title () {
Echo-e "\n#############################"
Echo-e "# \033[1m$1\033[0m"
echo "#############################"
}

Echo_red () {
Echo-e "\033[0;31;1m$1\033[0;31;0m"
}

Clear
Echo-n "Operation_date:"
Echo_red "' Date '"
Echo-n "Operator:"
echo_red "' ID '"

# Basic Information
Echo_title "Basic Information"
ECHO-E-N "kernel\t\t:"
Echo_red "' Uname-a '"
ECHO-E-N "hostname\t:"
echo_red "' hostname '"

Show results

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/80/0A/wKioL1c1f17AK3e4AAGYVoK2vjE076.jpg "title=" 9 "alt= "Wkiol1c1f17ak3e4aagyvok2vje076.jpg"/>

This article from the "Go to the Origin dimension" blog, reproduced please contact the author!

Shell-5.shell echo Command