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In many programming languages, the Boolean type is, or is implemented as, a subtype of integer, where true behaves like 1 and false behaves like 0:

• Boolean in C

• Boolean in Python

• Boolean in Java

Mathematically, Boolean algebra resembles integer arithmetic modulo 2. Therefore, if a language doesn't provide native Boolean type, the most natural and efficient solution is to use integers. This works with almost any language. For example, in Bash you can do:

# val=1; ((val)) && echo "true" || echo "false"
true
# val=0; ((val)) && echo "true" || echo "false"
false

man bash:

((expression))

 

The expression is evaluated according to the rules described below under ARITHMETIC EVALUATION. If the value of the expression is non-zero, the return status is 0; otherwise the return status is 1. This is exactly equivalent to let "expression".

In many programming languages, the Boolean type is, or is implemented as, a subtype of integer, where true behaves like 1 and false behaves like 0:

• Boolean in C

• Boolean in Python

• Boolean in Java

Mathematically, Boolean algebra resembles integer arithmetic modulo 2. Therefore, if a language doesn't provide native Boolean type, the most natural and efficient solution is to use integers. This works with almost any language. For example, in Bash you can do:

# val=1; ((val)) && echo "true" || echo "false"
true
# val=0; ((val)) && echo "true" || echo "false"
false

man bash:

((expression))

The expression is evaluated according to the rules described below under ARITHMETIC EVALUATION. If the value of the expression is non-zero, the return status is 0; otherwise the return status is 1. This is exactly equivalent to let "expression".

In many programming languages, the boolean type is, or is implemented as, a subtype of integer, where true behaves like 1 and false behaves like 0:

• Boolean in C

• Boolean in Python

• Boolean in Java

Mathematically, boolean algebra resembles integer arithmetic modulo 2. Therefore, if a language doesn't provide native boolean type, the most natural and efficient solution is to use integers. This works with almost any language. For example, in Bash you can do:

# val=1; ((val)) && echo "true" || echo "false"
true
# val=0; ((val)) && echo "true" || echo "false"
false

man bash:

((expression))

The expression is evaluated according to the rules described below under ARITHMETIC EVALUATION. If the value of the expression is non-zero, the return status is 0; otherwise the return status is 1. This is exactly equivalent to let "expression".

In many programming languages, the Boolean type is, or is implemented as, a subtype of integer, where true behaves like 1 and false behaves like 0:

• Boolean in C

• Boolean in Python

• Boolean in Java

Mathematically, Boolean algebra resembles integer arithmetic modulo 2. Therefore, if a language doesn't provide native Boolean type, the most natural and efficient solution is to use integers. This works with almost any language. For example, in Bash you can do:

# val=1; ((val)) && echo "true" || echo "false"
true
# val=0; ((val)) && echo "true" || echo "false"
false

man bash:

((expression))

The expression is evaluated according to the rules described below under ARITHMETIC EVALUATION. If the value of the expression is non-zero, the return status is 0; otherwise the return status is 1. This is exactly equivalent to let "expression".

In many programming languages, the boolean type is, or is implemented as, a subtype of integer, where true behaves like 1 and false behaves like 0:

• Boolean in Python

• Boolean in Java

Mathematically, boolean algebra resembles integer arithmetic modulo 2. Therefore, if a language doesn't provide native boolean type, the most natural and efficient solution is to use integers. Bash is no exception here:

# val=1; ((val)) && echo "true" || echo "false"
true
# val=0; ((val)) && echo "true" || echo "false"
false

man bash:

((expression))

The expression is evaluated according to the rules described below under ARITHMETIC EVALUATION. If the value of the expression is non-zero, the return status is 0; otherwise the return status is 1. This is exactly equivalent to let "expression".

In many programming languages, the boolean type is, or is implemented as, a subtype of integer, where true behaves like 1 and false behaves like 0:

• Boolean in C

• Boolean in Python

• Boolean in Java

Mathematically, boolean algebra resembles integer arithmetic modulo 2. Therefore, if a language doesn't provide native boolean type, the most natural and efficient solution is to use integers. This works with almost any language. For example, in Bash you can do:

# val=1; ((val)) && echo "true" || echo "false"
true
# val=0; ((val)) && echo "true" || echo "false"
false

man bash:

((expression))

The expression is evaluated according to the rules described below under ARITHMETIC EVALUATION. If the value of the expression is non-zero, the return status is 0; otherwise the return status is 1. This is exactly equivalent to let "expression".