difference between echo ($x) and a=“($x)”; echo $a
When I execute the following in terminal:
x=1
a=($x)
echo $a #output: 1
echo ($x) #output: -bash: syntax error near unexpected token `$x'
Why are above outputs different?
Also why are the following 2 outputs different:
$(echo foo) #output: -bash: foo: command not found
(echo foo) #output: foo
P.S.: I am new to shell scripting and trying to understand command substitution: $(command)
bash shell scripting command-substitution
New contributor
add a comment |
When I execute the following in terminal:
x=1
a=($x)
echo $a #output: 1
echo ($x) #output: -bash: syntax error near unexpected token `$x'
Why are above outputs different?
Also why are the following 2 outputs different:
$(echo foo) #output: -bash: foo: command not found
(echo foo) #output: foo
P.S.: I am new to shell scripting and trying to understand command substitution: $(command)
bash shell scripting command-substitution
New contributor
add a comment |
When I execute the following in terminal:
x=1
a=($x)
echo $a #output: 1
echo ($x) #output: -bash: syntax error near unexpected token `$x'
Why are above outputs different?
Also why are the following 2 outputs different:
$(echo foo) #output: -bash: foo: command not found
(echo foo) #output: foo
P.S.: I am new to shell scripting and trying to understand command substitution: $(command)
bash shell scripting command-substitution
New contributor
When I execute the following in terminal:
x=1
a=($x)
echo $a #output: 1
echo ($x) #output: -bash: syntax error near unexpected token `$x'
Why are above outputs different?
Also why are the following 2 outputs different:
$(echo foo) #output: -bash: foo: command not found
(echo foo) #output: foo
P.S.: I am new to shell scripting and trying to understand command substitution: $(command)
bash shell scripting command-substitution
bash shell scripting command-substitution
New contributor
New contributor
New contributor
asked 10 mins ago
SunnySunny
1
1
New contributor
New contributor
add a comment |
add a comment |
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Sunny is a new contributor. Be nice, and check out our Code of Conduct.
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Sunny is a new contributor. Be nice, and check out our Code of Conduct.
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