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sed or awk: delete n lines following a pattern
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This might work for you:
cat <<! >pattern_number.txt
> 5 3
> 10 1
> 15 5
> !
sed 's|\(\S*\) \(\S*\)|/\1/,+\2{//!d}|' pattern_number.txt |
sed -f - <(seq 21)
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21
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HTTPS setup in Amazon EC2
How do we enable HTTPS in Amazon EC2? Our site is working on HTTP.
8 Answers
8
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How do I remove all non alphanumeric characters from a string except dash?
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Here's a regex compiled version: return Regex.Replace(str, "[^a-zA-Z0-9_.]+", "", RegexOptions.Compiled); Same basic question
– Paige Watson
Sep 30 '11 at 16:35
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How would you count occurrences of a string (actually a char) within a string?
... 134| 1853| 95| 1146| 671|
LukeH_1 | 346| 4490| N/A| N/A| N/A|
LukeH_2 | 152| 1569| 197| 2425| 2171|
Bobwienholt | 230| 3269| N/A| N/A| ...
What character encoding should I use for a HTTP header?
I'm using a "fun" HTML special-character (✰)(see http://html5boilerplate.com/ for more info) for a Server HTTP-header and am wondering if it is "allowed" per spec.
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Image inside div has extra space below the image
...ult</h1>
The quick brown fox jumps over the lazy dog <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/VangoghStarry-night2.jpg/300px-VangoghStarry-night2.jpg" alt="">
</div>
<div id="align-middle">
<h1>vertical-align: middle</h1>
The ...
How can I stop .gitignore from appearing in the list of untracked files?
...ignore file should be in your repository, so it should indeed be added and committed in, as git status suggests. It has to be a part of the repository tree, so that changes to it can be merged and so on.
So, add it to your repository, it should not be gitignored.
If you really want you can add .gi...
Get free disk space
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I upvoted @RoyT's comment because he took the time to explain why one is recommended over the other.
– SoCalCoder
Oct 26 '17 at 21:26
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How to count the frequency of the elements in an unordered list?
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542
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How to do scanf for single char in C [duplicate]
...mat. For example, if you input abc for an int such as: scanf("%d", &int_var); then abc will have to read and discarded. Consider:
#include <stdio.h>
int main(void)
{
int i;
while(1) {
if (scanf("%d", &i) != 1) { /* Input "abc" */
printf("Invalid input. Tr...