How to use shell script functions to control color, positioning, and centered display

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1. Control color

Code:

#! / bin/sh

Function colour ()

{

Case $1 in

Black_green)

Echo-e'\ 033 [40 * 32m'

Black_yellow)

Echo-e'\ 033 [40 * 33m'

Black_white)

Echo-e'\ 033 [40 * 37m'

Black_cyan)

Echo-e'\ 033 [40 * 36m'

Black_red)

Echo-e'\ 033 [40 * 31m'

Colour_default)

Echo-e'\ 033 [0m'

Esac

}

Second, positioning

Code:

#! / bin/sh

Function xy ()

{

_ Renewal 1

_ Category 2

_ TEXT=$3

Tput cup $_ R $_ C

Echo-n $_ TEXT

}

Third, centered display

Code:

#! / bin/sh

Function center ()

{

_ STR=$1

_ ROW=$2

LEN= `echo $_ STR | wc-c`

COLS= `tput cols`

HOLD_COL= `expr $COLS-$LEN`

NEW_COL= `expr $HOLD_COL / 2`

Tput cup $_ ROW $NEW_COL

Echo-n $_ STR

}

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