Can a conditional statement be used inside a command in bash?

Question

Can a conditional statement be inserted in, for example, a print command like echo with bash?

E.g. (does not work)

$ cat t.sh
#!/bin/bash

string1="It's a "
string2opt1="beautiful"
string2opt2="gross"
string3=" day."

read c

echo -n "$string1 $( [[ $c -eq 0 ]] && { echo -n "$string2opt1" } || { echo "$string2opt2" } ) $string3"

I know that this is possible with semicolons/non-one-liners; I am just wondering if there is a more elegant or accepted way of doing this.

Answer 1

To clarify, you want to achieve this:

#!/bin/bash

string1="It's a"
string2opt1="beautiful"
string2opt2="gross"
string3="day."

read -r c

if [[ $c -eq 0 ]]; then
  echo "$string1" "$string2opt1" "$string3"
else
  echo "$string1" "$string2opt2" "$string3"
fi

but in a one-liner. Does this work for you?

#!/bin/bash

string1="It's a"
string2opt1="beautiful"
string2opt2="gross"
string3="day."

read -r c

echo "$string1" "$([[ $c -eq 0 ]] && echo "$string2opt1" || echo "$string2opt2")" "$string3"