How can I grep for empty functions?
I'm recursively looking in a directory for all functions containing only a blank one-line comment, such as the following:
public function index()
{
//
}
I tried grep -PR "//$" *
with no luck. Any help would be much appreciated, and thanks in advance.
shell grep regular-expression
New contributor
add a comment |
I'm recursively looking in a directory for all functions containing only a blank one-line comment, such as the following:
public function index()
{
//
}
I tried grep -PR "//$" *
with no luck. Any help would be much appreciated, and thanks in advance.
shell grep regular-expression
New contributor
1
Doesn'tgrep -PR "^s*//s*$" *
work?
– terdon♦
16 mins ago
It does. Thanks!
– Brandon M.
7 mins ago
add a comment |
I'm recursively looking in a directory for all functions containing only a blank one-line comment, such as the following:
public function index()
{
//
}
I tried grep -PR "//$" *
with no luck. Any help would be much appreciated, and thanks in advance.
shell grep regular-expression
New contributor
I'm recursively looking in a directory for all functions containing only a blank one-line comment, such as the following:
public function index()
{
//
}
I tried grep -PR "//$" *
with no luck. Any help would be much appreciated, and thanks in advance.
shell grep regular-expression
shell grep regular-expression
New contributor
New contributor
New contributor
asked 19 mins ago
Brandon M.Brandon M.
1062
1062
New contributor
New contributor
1
Doesn'tgrep -PR "^s*//s*$" *
work?
– terdon♦
16 mins ago
It does. Thanks!
– Brandon M.
7 mins ago
add a comment |
1
Doesn'tgrep -PR "^s*//s*$" *
work?
– terdon♦
16 mins ago
It does. Thanks!
– Brandon M.
7 mins ago
1
1
Doesn't
grep -PR "^s*//s*$" *
work?– terdon♦
16 mins ago
Doesn't
grep -PR "^s*//s*$" *
work?– terdon♦
16 mins ago
It does. Thanks!
– Brandon M.
7 mins ago
It does. Thanks!
– Brandon M.
7 mins ago
add a comment |
1 Answer
1
active
oldest
votes
Your grep
is only matching //
that are at the very end of the line. Your functions probably have whitespace characters after that. You might also want to allow whitespace before the //
. so search for lines that consist entirely of 0 or more whitespace characters, then the //
and then 0 or more whitespace characters:
grep -PR '^s*//s*$'
add a comment |
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Your grep
is only matching //
that are at the very end of the line. Your functions probably have whitespace characters after that. You might also want to allow whitespace before the //
. so search for lines that consist entirely of 0 or more whitespace characters, then the //
and then 0 or more whitespace characters:
grep -PR '^s*//s*$'
add a comment |
Your grep
is only matching //
that are at the very end of the line. Your functions probably have whitespace characters after that. You might also want to allow whitespace before the //
. so search for lines that consist entirely of 0 or more whitespace characters, then the //
and then 0 or more whitespace characters:
grep -PR '^s*//s*$'
add a comment |
Your grep
is only matching //
that are at the very end of the line. Your functions probably have whitespace characters after that. You might also want to allow whitespace before the //
. so search for lines that consist entirely of 0 or more whitespace characters, then the //
and then 0 or more whitespace characters:
grep -PR '^s*//s*$'
Your grep
is only matching //
that are at the very end of the line. Your functions probably have whitespace characters after that. You might also want to allow whitespace before the //
. so search for lines that consist entirely of 0 or more whitespace characters, then the //
and then 0 or more whitespace characters:
grep -PR '^s*//s*$'
answered 4 mins ago
terdon♦terdon
129k31252427
129k31252427
add a comment |
add a comment |
Brandon M. is a new contributor. Be nice, and check out our Code of Conduct.
Brandon M. is a new contributor. Be nice, and check out our Code of Conduct.
Brandon M. is a new contributor. Be nice, and check out our Code of Conduct.
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1
Doesn't
grep -PR "^s*//s*$" *
work?– terdon♦
16 mins ago
It does. Thanks!
– Brandon M.
7 mins ago