"Juego de rompecabezas" de Shell-loop

1. Línea recta

① Línea recta vertical

#!/bin/bash

for ((i=1;i<=20;i++))
do
 echo "|"
done

②Recta horizontal

#!/bin/bash

for ((i=1;i<=20;i++))
do
 echo -n "--"
done
 echo ""

Dos, rectángulo

Rectángulo de largo 7 y ancho 3

#!/bin/bash

for ((i=1;i<=3;i++))
do

 for ((b=1;b<=7;b++ ))
 do
 echo -n "❄"
 done
 
echo ""
done

Tabla de multiplicar del tres 99

#!/bin/bash
#for循环99乘法表
for (( a=1;a<=9;a++ ))
do
 for (( b=1;b<=$a;b++ ))
 do
 c=$[$a*$b]
 echo -n -e "$b*$a=$c\t"
 done
 echo ""
done

Cuatro, triangulo

① Triángulo rectángulo

#!/bin/bash

for ((i=1;i<=10;i++))
do

 for ((b=1;b<=$i;b++ ))
 do
 echo -n "❄"
 done

echo ""
done

② Triángulo rectángulo invertido

#!/bin/bash

for ((i=10;i>=1;i--))
do

 for ((b=1;b<=$i;b++ ))
 do
 echo -n "❄"
 done

echo ""
done

③Triángulo anti-rectángulo

#!/bin/bash

for ((i=1;i<=10;i++))
do

  for ((b=10;b>=$i;b--))
  do
  echo -n " "
  done
    for ((c=1;c<=$i;c++))
    do
    echo -n "★"
    done

echo ""
done

④ Triángulo rectángulo invertido

#!/bin/bash

for ((i=10;i>=1;i--))
do

  for ((b=10;b>=$i;b--))
  do
  echo -n " "
  done
    for ((c=1;c<=$i;c++))
    do
    echo -n "★"
    done

echo ""
done

⑤ Triángulo isósceles (apuntando hacia arriba)

#!/bin/bash

for ((i=1;i<=10;i++))
do

  for ((b=10;b>=$i;b--))
  do
  echo -n " "
  done
    for ((c=1;c<=$i;c++))
    do     
    echo -n "*"
    done
      for ((d=2;d<=$i;d++))
      do
      echo -n "*"
      done
echo ""
done

⑥ Triángulo isósceles (apuntando hacia abajo)

#!/bin/bash

for ((i=10;i>=1;i--))
do

  for ((b=10;b>=$i;b--))
  do
  echo -n " "
  done
    for ((c=1;c<=$i;c++))
    do
    echo -n "*"
    done
      for ((d=2;d<=$i;d++))
      do
      echo -n "*"
      done

echo ""
done

Cinco, rombo

#!/bin/bash

for ((i=1;i<=10;i++))
do

  for ((b=10;b>=$i;b--))
  do
  echo -n " "
  done
    for ((c=1;c<=$i;c++))
    do
    echo -n "8"
    done
      for ((d=2;d<=$i;d++))
      do
      echo -n "8"
      done
echo ""
done

for ((i=10;i>=1;i--))
do

  for ((b=10;b>=$i;b--))
  do
  echo -n " "
  done
    for ((c=1;c<=$i;c++))
    do
    echo -n "8"
    done
      for ((d=2;d<=$i;d++))
      do
      echo -n "8"
      done

echo ""
done

Seis, paralelogramo

①

#!/bin/bash

for ((i=1;i<=5;i++))
do
 for ((a=1;a<=$i;a++))
 do
 echo -n " "
 done
   for ((b=1;b<=7;b++ ))
   do
   echo -n "❄"
   done

echo ""
done

②

#!/bin/bash

for ((i=1;i<=5;i++))
do
 for ((a=5;a>=$i;a--))
 do
 echo -n " "
 done
   for ((b=1;b<=7;b++ ))
   do
   echo -n "❄"
   done

echo ""
done

Siete, trapezoide

①Trapezoide de ángulo recto

#!/bin/bash

for ((i=1;i<=5;i++))
do
 for ((a=5;a>=$i;a--))
 do
 echo -n " "
 done
   for ((b=1;b<=7;b++))
   do
   echo -n "❄"
   done
     for ((c=1;c<=$i;c++))
     do
     echo -n "❄"
     done
echo ""
done

②Isosceles trapezoide

#!/bin/bash

for ((i=1;i<=5;i++))
do
 for ((a=5;a>=$i;a--))
 do
 echo -n " "
 done
   for ((b=1;b<=7+$i;b++))
   do
   echo -n "❄"
   done
     for ((c=1;c<=$i;c++))
     do
     echo -n "❄"
     done
echo ""
done

Ocho, la variable PATH

#!/bin/bash

OLDIFS=$IFS
IFS=':'

for a in $PATH
do
 echo $i

 for b in $a/*
 do
  if [ -x $b ];then
  echo $b
  fi
 done
done