CODEWITHSUNDEEP
bashshellterminalfish
ajorgensen
ajorgensen

Reputation: 5151

Fish shell command subsitution

Is there a better way to do command substitution in fish shell?

In bash I can do:

$ echo $(whoami) 
user

$ echo "I am: $(whoami)" 
I am: user

But in fish is looks like I have to do:

$ echo (whoami) 
user

$ echo "I am: (whoami)" 
I am: (whoami)

$ set who (whoami); echo "I am: $who" 
I am: user

Is that the recommended way to do command substitution in fish where the substitution needs to happen inside a quoted string?

Upvotes: 12

Views: 3789

Answers (1)

glenn jackman
glenn jackman

Reputation: 246774

You could just pull the substitution out of the quotes

echo "I am:" (whoami)

To bring this answer up to date: fish 3.4 introduced $(...) command substitutions that are expanded within double quotes

echo "I am: $(whoami)"

Command substitution

Upvotes: 17

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