I would like to concatenate two figlet outputs (with different colors)

Question

Currently I have this kind of output format:

{ echo "$(figlet buddhi)"; echo "$(figlet lw)"; }

 _               _     _ _     _
| |__  _   _  __| | __| | |__ (_)
| '_ \| | | |/ _` |/ _` | '_ \| |
| |_) | |_| | (_| | (_| | | | | |
|_.__/ \__,_|\__,_|\__,_|_| |_|_|

 _
| |_      __
| \ \ /\ / /
| |\ V  V /
|_| \_/\_/

And I would like to have this output format:

figlet buddhi lw
 _               _     _ _     _   _
| |__  _   _  __| | __| | |__ (_) | |_      __
| '_ \| | | |/ _` |/ _` | '_ \| | | \ \ /\ / /
| |_) | |_| | (_| | (_| | | | | | | |\ V  V /
|_.__/ \__,_|\__,_|\__,_|_| |_|_| |_| \_/\_/

The reason is: I would like to color each name (buddhi, lw) with a different color. But, retain the format of a continuous string, or at maximum space-separated, as above.

Example:

 #COMMANDS CREATED INSIDE /ETC/BASH.BASHRC FILE
 # USING ANSI COLORS
 RED="\e[31m"
 ORANGE="\e[33m"
 BLUE="\e[94m"
 GREEN="\e[92m"
 STOP="\e[0m"


 printf "${GREEN}"
 printf "=================================\n"
 printf "${ORANGE}"
 figlet -f standard "Buddhi"
 printf "${BLUE}"
 figlet -f  small "LW"
 printf "${GREEN}"
 printf "=================================\n"
 printf "${STOP}"

Answer 1

Store the lines of each word in arrays, output both the arrays line by line. As the first line of "Buddhi" seems to be one character shorter, I stored the longest line length of the first word in a variable, and used the %-s format to pad each line.

#! /bin/bash
RED="\e[31m"
ORANGE="\e[33m"
BLUE="\e[94m"
GREEN="\e[92m"
STOP="\e[0m"

mapfile -t left  < <(figlet -f standard "Buddhi")
mapfile -t right < <(figlet -f small    "LW")

maxlength=0
for line in "${left[@]}" ; do
    if (( ${#line} > maxlength )) ; then
        maxlength=${#line}
    fi
done

printf "${GREEN}"
printf "=================================\n"

for ((i=0; i<=${#left[@]}; ++i)) ; do
    printf "${ORANGE}%-${maxlength}s ${GREEN}%s\n" "${left[i]}" "${right[i]}"
done

printf "${GREEN}"
printf "=================================\n"
printf "${STOP}"

Answer 2

In lieu of figlet I'll use the following as my inputs:

$ cat buddhi
 _               _     _ _     _
| |__  _   _  __| | __| | |__ (_)
| '_ \| | | |/ _` |/ _` | '_ \| |
| |_) | |_| | (_| | (_| | | | | |
|_.__/ \__,_|\__,_|\__,_|_| |_|_|

$ cat lw
 _
| |_      __
| \ \ /\ / /
| |\ V  V /
|_| \_/\_/

Assuming figlet generates the same number of output lines for each input string, we can use paste (@ as a delimiter) and a while/read loop to generate the desired output:

printf "${GREEN}"
printf "============================\n"

maxwidth=$(awk '{max=length($0) > max ? length($0) : max}END{print max}' buddhi)

while IFS='@' read -r col1 col2
do
    printf "${ORANGE}%-*s ${BLUE}%s\n" "${maxwidth}" "${col1}" "${col2}"
done < <(paste -d"@" buddhi lw)

printf "${GREEN}"
printf "============================\n"

This generates:

---

Expanding to 3 input streams:

printf "${GREEN}"
printf "============================\n"

max1=$(awk '{max=length($0) > max ? length($0) : max}END{print max}' buddhi)
max2=$(awk '{max=length($0) > max ? length($0) : max}END{print max}' lw)

while IFS='@' read -r col1 col2 col3
do
    printf "${ORANGE}%-*s ${BLUE}%-*s ${RED}%s\n" "${max1}" "${col1}" "${max2}" "${col2}" "${col3}"
done < <(paste -d"@" buddhi lw buddhi)

printf "${GREEN}"
printf "============================\n"

This generates:

Answer 3

If you need a shorter version:

printf "$GREEN=================================\n"
{ figlet Buddhi; echo 'EOF'; figlet LW; } | awk 'NF==1&&$1=="EOF" {noskip=1; next; } noskip==0 { f[++c]=$0; next; } { printf "%s%s%s%s\n","'"$ORANGE"'",f[++k],"'"$BLUE"'",$0;}'
printf "$GREEN=================================\n"
tput sgr0

I would recommend to use tput for setting the color as not every terminal will know your escape sequences

Answer 4

The guys who invented shell also invented awk for shell to call to manipulate text. Those escape sequences don't change colors on my terminal, they just show up as-is (fortunately so you can see where the script is puting them):

$ cat tst.sh
#!/usr/bin/env bash

awk '
    BEGIN {
        red =    "\\e[31m"
        orange = "\\e[33m"
        blue =   "\\e[94m"
        green =  "\\e[92m"
        stop =   "\\e[0m"
    }
    {
        val[(NR==FNR),FNR] = $0
    }
    NR == FNR {
        wid = length($0)
        maxWid = ( wid > maxWid ? wid : maxWid )
    }
    END {
        for ( lineNr=1; lineNr<=FNR; lineNr++ ) {
            printf "%s%-*s%s%s%s\n", orange, maxWid, val[1,lineNr], blue, val[0,lineNr], stop
        }
    }
' <(cat Buddhi) <(cat LW)

$ ./tst.sh
\e[33m _               _     _ _     _ \e[94m _\e[0m
\e[33m| |__  _   _  __| | __| | |__ (_)\e[94m| |_      __\e[0m
\e[33m| '_ \| | | |/ _` |/ _` | '_ \| |\e[94m| \ \ /\ / /\e[0m
\e[33m| |_) | |_| | (_| | (_| | | | | |\e[94m| |\ V  V /\e[0m
\e[33m|_.__/ \__,_|\__,_|\__,_|_| |_|_|\e[94m|_| \_/\_/\e[0m

Since I don't have figlet, I ran the above on these files:

$ head Buddhi LW
==> Buddhi <==
 _               _     _ _     _
| |__  _   _  __| | __| | |__ (_)
| '_ \| | | |/ _` |/ _` | '_ \| |
| |_) | |_| | (_| | (_| | | | | |
|_.__/ \__,_|\__,_|\__,_|_| |_|_|

==> LW <==
 _
| |_      __
| \ \ /\ / /
| |\ V  V /
|_| \_/\_/

Just change the last line of the script from:

' <(cat Buddhi) <(cat LW)

to

' <(figlet Buddhi) <(figlet LW)

to use actual figlet output.

the above assumes you only have 2 figlet output strings to concatenate and that both sets of output are the same length, it's easy tweaks if either of those assumptions is wrong.

Answer 5

Using coordinates

#!/bin/bash

RED='\e[31m'
GRN='\e[32m'

XY(){ printf "\e[$2;${1}H$3"; }

mapfile -t frst < <(figlet -f standard "Buddhi")
mapfile -t scnd < <(figlet -f small    "LW")

XY 1 1 "$GRN==============================================="; y=2
for line in "${frst[@]}"; { XY 0  $y "$RED$line"; ((y++)); }; y=2
for line in "${scnd[@]}"; { XY 35 $y "$GRN$line"; ((y++)); }
XY 1 8 "$GRN==============================================="

More examples here, here and here