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Remove empty lines from a file
How to move multiple IPs to different lines
I'm able to find empty lines with /^$, but when I go to remove them using :%s/^$//, nothing seems to happen. Yet, some form of substitution is being made, because the status line reads XX substitutions on XX lines where XX is the number of empty lines in the file.
Questions:
- What substitutions are being made, as indicated by the status line?
- How do I accomplish what I want to do (eliminate empty lines from a file)?
substitute
asked Jun 1 at 1:24
chbchb
1154
add a comment |
I'm able to find empty lines with /^$, but when I go to remove them using :%s/^$//, nothing seems to happen. Yet, some form of substitution is being made, because the status line reads XX substitutions on XX lines where XX is the number of empty lines in the file.
Questions:
- What substitutions are being made, as indicated by the status line?
- How do I accomplish what I want to do (eliminate empty lines from a file)?
substitute
asked Jun 1 at 1:24
chbchb
1154
One answer to #2 is:g/^$/d
– chb
Jun 1 at 1:46
A solution would be to replace an actual character::%s/^n//but that depends on file format.
– aragaer
Jun 1 at 10:26
add a comment |
I'm able to find empty lines with /^$, but when I go to remove them using :%s/^$//, nothing seems to happen. Yet, some form of substitution is being made, because the status line reads XX substitutions on XX lines where XX is the number of empty lines in the file.
Questions:
- What substitutions are being made, as indicated by the status line?
- How do I accomplish what I want to do (eliminate empty lines from a file)?
substitute
asked Jun 1 at 1:24
chbchb
1154
I'm able to find empty lines with /^$, but when I go to remove them using :%s/^$//, nothing seems to happen. Yet, some form of substitution is being made, because the status line reads XX substitutions on XX lines where XX is the number of empty lines in the file.
Questions:
- What substitutions are being made, as indicated by the status line?
- How do I accomplish what I want to do (eliminate empty lines from a file)?
substitute
substitute
asked Jun 1 at 1:24
chbchb
1154
asked Jun 1 at 1:24
chbchb
1154
asked Jun 1 at 1:24
chbchb
1154
asked Jun 1 at 1:24
chbchb
1154
asked Jun 1 at 1:24
chbchb
1154
1154
One answer to #2 is:g/^$/d
– chb
Jun 1 at 1:46
A solution would be to replace an actual character::%s/^n//but that depends on file format.
– aragaer
Jun 1 at 10:26
add a comment |
One answer to #2 is:g/^$/d
– chb
Jun 1 at 1:46
A solution would be to replace an actual character::%s/^n//but that depends on file format.
– aragaer
Jun 1 at 10:26
One answer to #2 is
:g/^$/d– chb
Jun 1 at 1:46
One answer to #2 is
:g/^$/d– chb
Jun 1 at 1:46
A solution would be to replace an actual character:
:%s/^n// but that depends on file format.– aragaer
Jun 1 at 10:26
A solution would be to replace an actual character:
:%s/^n// but that depends on file format.– aragaer
Jun 1 at 10:26
add a comment |
1 Answer
1
active
oldest
votes
^and$are zero-width items, so when you do:%s/^$//you’re substituting zero characters for zero characters- To actually perform the substitution, the idioms are
:g/^$/d
and
:g/^$/j
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
add a comment |
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1 Answer
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votes
^and$are zero-width items, so when you do:%s/^$//you’re substituting zero characters for zero characters- To actually perform the substitution, the idioms are
:g/^$/d
and
:g/^$/j
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
add a comment |
^and$are zero-width items, so when you do:%s/^$//you’re substituting zero characters for zero characters- To actually perform the substitution, the idioms are
:g/^$/d
and
:g/^$/j
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
add a comment |
^and$are zero-width items, so when you do:%s/^$//you’re substituting zero characters for zero characters- To actually perform the substitution, the idioms are
:g/^$/d
and
:g/^$/j
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
^and$are zero-width items, so when you do:%s/^$//you’re substituting zero characters for zero characters- To actually perform the substitution, the idioms are
:g/^$/d
and
:g/^$/j
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
edited Jun 2 at 12:46
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
answered Jun 1 at 3:23
D. Ben KnobleD. Ben Knoble
3,0431521
3,0431521
add a comment |
add a comment |
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One answer to #2 is
:g/^$/d– chb
Jun 1 at 1:46
A solution would be to replace an actual character:
:%s/^n//but that depends on file format.– aragaer
Jun 1 at 10:26