Substituting the first occurrence of a pattern in a line, for all the lines in a file with sed

I would like to write a script that takes something like this: Line 1 Line 2 Line 3 Line 4 [Blank line] Line 6 Line 7 Line 8 Line 9 [Blank line] etc....

And makes it to look like this: Line 1|Line 2|Line 3|Line 4|[Blank line, if it's easier] Line 6|Line 7|Line 8|Line 9|[Blank line, if it's easier] etc.

I would think it would be fairly easy to use two loops, one for the the 5-li

Assume I have a big file, ~1k lines, and I need to delete the line after some pattern, lets call it: somePatern.

Conditions:

cannot be done by hand (no searching -- /somePattern, and/or manually moving down one line and deleting). preferably a single liner.

In vim, I sometimes have occasion to replace the first few occurrences of a match on a line, but not every one like g would.

How can I trim a file (well input stream) so that I only get the lines ranging from the first occurrence of pattern foo to the last occurrence of pattern bar?

For instance consider the following input :

A line like foo this foo bar something something else foo bar and the rest

I expect this output:

foo this foo bar something something else foo bar

How can I write a script that takes a cisco config file and outputs every occurrence of two, or more, pattern matches through the whole config file?

For example, out of a config file, i want to print out every line with interface, description and ip address through the whole file, and disregard anything else.

Example:

interface Loopback1111 description aaaa ip vrf forwarding vaaaa ip address

I have problem with this for last few days and I would really be grateful if you can help me :wall::wall::wall::wall::wall:

I have sets of files in one directory, and each of them have few lines each one of these lines has 1 or more occurrence of words Y = [Dean James John Mark Bob] I need to find the position of the Y in each line and put them into a file with number of the words in the whole l

I have a file with dups records (dups are in columns).

I would like to remove carriage returns/line feeds in a text file, but in a specific cadence: Read first line (Header Line 1), remove cr/lf at the end (replace it with a space ideally); Read the next line (Line of Text 2), leave the cr/lf intact; Read the next line, remove the cr/lf; Read the next line (Header Line 2), remove cr/lf at the end (replace it with a space); Read the next line (Line of

Hi,

I have a file as below

This is the line one This is the line two <\XMLTAG> This is the line three This is the line four <\XMLTAG>

Output of the SED command need to be as below.

This is the line one This is the line two <\XMLTAG>

Please do the need to needful to get the desired output.