You can make your BASH script more pretty, by colorizing its output.
Use ANSI escape sequences to set text properties like foreground and background colors.
Colorizing Shell
Use the following template for writing colored text:
echo -e "\e[COLORmSample Text\e[0m"
| Option | Description |
|---|---|
| -e | Enable interpretation of backslash escapes |
| \e[ | Begin the color modifications |
| COLORm | Color Code + ‘m’ at the end |
| \e[0m | End the color modifications |
Examples:
$ echo -e "\e[31mRed Text\e[0m" Red Text $ echo -e "\e[42mGreen Background\e[0m" Green Background
ANSI — Color Escape Codes
Shell scripts commonly use ANSI escape codes for color output:
| Color | Foreground Code | Background Code | Sample |
|---|---|---|---|
| Black | 30 | 40 | |
| Red | 31 | 41 | |
| Green | 32 | 42 | |
| Brown | 33 | 43 | |
| Blue | 34 | 44 | |
| Purple | 35 | 45 | |
| Cyan | 36 | 46 | |
| Light Gray | 37 | 47 |
Escape sequence also allows to control the manner in which characters are displayed on the screen:
| ANSI Code | Description |
|---|---|
| 0 | Normal Characters |
| 1 | Bold Characters |
| 4 | Underlined Characters |
| 5 | Blinking Characters |
| 7 | Reverse video Characters |
Examples:
$ echo -e "\e[1mBold Text\e[0m"
Bold Text
$ echo -e "\e[3mUnderlined Text\e[0m"
Underlined Text
By combining all these escape sequences, we can get more fancy effect.
echo -e "\e[COLOR1;COLOR2mSample Text\e[0m"
There are some differences between colors when combining colors with bold text attribute:
| Color | Foreground Code | Background Code | Sample |
|---|---|---|---|
| Dark Gray | 1;30 | 1;40 | |
| Light Red | 1;31 | 1;41 | |
| Light Green | 1;32 | 1;42 | |
| Yellow | 1;33 | 1;43 | |
| Light Blue | 1;34 | 1;44 | |
| Light Purple | 1;35 | 1;45 | |
| Light Cyan | 1;36 | 1;46 | |
| White | 1;37 | 1;47 |
Examples:
$ echo -e "\e[1;34mLight Blue Text\e[0m" Light Blue Text $ echo -e "\e[1;33;4;44mYellow Underlined Text on Blue Background\e[0m" Yellow Underlined Text on Blue Background
Для всех, кто, возможно, попытается применить это для раскраски bash prompt, то бишь PS1: нужно экранировать цвета с помощью [], иначе позиция курсора будет расчитываться неверно, приводя к забавным вещам. Т.е. для красного цвета конструкция \[\e[0;31m\].
i’d never seen the bold+color=light color trick, neat!
oh, vi iz anglii!
Thank you, just what I was looking for,
Thank you, its very helpful for me
May be usefull.
Add in Your .bashrc file (home or root) next string
export PS1=\[\033[01;37m\]$? $( if [[ $? == 0 ]]; then echo “\[\033[01;32m\]\342\234\223”; else echo “\[\033[01;31m\]\342\234\227”; fi) \[\033[1;32m\]\u\[\033[31m\]@\[\033[1;34m\]\h\[\033[1;33m\]:\[\033[1;35m\]\w\[\033[0m\]\$>\[\]
You’ll get the next string:
Last error code,
green OK if error code is 0, red cross if no,
green username,
pink symbol AT,
blue servername,
white semicolomn,
pink current dir,
# if root or $ if user,
white >
as this https://prnt.sc/srjpl0
exactly what I was looking for thanks dude
#!/bin/bash # #== == Date : May 18, 2022 #== == Name : #== Creator : Jay Vasallo - Clanwarz Inc. #== =====================================> #== Script Variables scriptName="XXX" #== Colors rt=$(tput sgr0); r=$(tput setaf 1); g=$(tput setaf 2); y=$(tput setaf 3); c=$(tput setaf 6); b=$(tput bold); #== Remote Directories wDir="$(realpath .)" #== Time start="$(date +%s)" #== Let's Begin #== =========== echo "${b}${r}[${rt}${b}${y}$(date +"%m-%d-%Y %H:%M:%S")${b}${r}]${rt} - ${b}${g}Starting:${rt} ${b}${c}${scriptName}${rt} ${b}${y}...${rt}"; sleep 1Thank you very much. This really helped me!
Thank you!