delete lines matching pattern if it is repeated
0
Say I have a config file:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[extra]
[footer]
[tail]
print = true
[end]
I want to print the headers ([text]) only if there are options underneath. So the output should be:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[tail]
print = true
text-processing awk sed perl
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
add a comment |
0
Say I have a config file:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[extra]
[footer]
[tail]
print = true
[end]
I want to print the headers ([text]) only if there are options underneath. So the output should be:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[tail]
print = true
text-processing awk sed perl
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
Why must it be sed, rather than awk or perl?
– Ed Grimm
12 mins ago
@EdGrimm - It doesn't really. I just wanted some simple one-liner. I've removed sed from the question.
– DarkHeart
3 mins ago
add a comment |
0
0
0
Say I have a config file:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[extra]
[footer]
[tail]
print = true
[end]
I want to print the headers ([text]) only if there are options underneath. So the output should be:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[tail]
print = true
text-processing awk sed perl
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
Say I have a config file:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[extra]
[footer]
[tail]
print = true
[end]
I want to print the headers ([text]) only if there are options underneath. So the output should be:
[main]
foo = bar
[option]
opt1 = opt2
opt3 = opt4
[tail]
print = true
text-processing awk sed perl
text-processing awk sed perl
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
edited 4 mins ago
DarkHeart
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
asked 51 mins ago
DarkHeartDarkHeart
3,51432340
3,51432340
Why must it be sed, rather than awk or perl?
– Ed Grimm
12 mins ago
@EdGrimm - It doesn't really. I just wanted some simple one-liner. I've removed sed from the question.
– DarkHeart
3 mins ago
add a comment |
Why must it be sed, rather than awk or perl?
– Ed Grimm
12 mins ago
@EdGrimm - It doesn't really. I just wanted some simple one-liner. I've removed sed from the question.
– DarkHeart
3 mins ago
Why must it be sed, rather than awk or perl?
– Ed Grimm
12 mins ago
Why must it be sed, rather than awk or perl?
– Ed Grimm
12 mins ago
@EdGrimm - It doesn't really. I just wanted some simple one-liner. I've removed sed from the question.
– DarkHeart
3 mins ago
@EdGrimm - It doesn't really. I just wanted some simple one-liner. I've removed sed from the question.
– DarkHeart
3 mins ago
add a comment |
0
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Why must it be sed, rather than awk or perl?
– Ed Grimm
12 mins ago
@EdGrimm - It doesn't really. I just wanted some simple one-liner. I've removed sed from the question.
– DarkHeart
3 mins ago