CODEWITHSUNDEEP
vim
pmu
pmu

Reputation: 27

How to keep required lines in gVim

I am using gVim 7.4.68 on Windows 7. I have a text file which is has the content as shown below. The two entries given below are for example only. The text file has 100s of such fields that have the Pseudo Name, Symmetrix ID, Logical Device, State/policy, and the path related information.

Pseudo name=emcpowermg
Symmetrix ID=000123456781234
Logical device ID=01D3
state=alive; policy=SymmOpt; priority=0; queued-IOs=0
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
   1 qla2xxx                   sdga      FA 10bA   active  alive      0      1
   0 qla2xxx                   sdgb      FA  7bA   active  alive      0      0

Pseudo name=emcpowerdl
Symmetrix ID=000123456780000
Logical device ID=0427
state=alive; policy=SymmOpt; priority=0; queued-IOs=0
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
   1 qla2xxx                   sdaca     FA  9bA   active  alive      0      0
   0 qla2xxx                   sdaci     FA  8bA   active  alive      0      0

I just want to filter out everything else except The Symmetrix ID and the Logical Device so that, the entire file is filled with entries such as:

Symmetrix ID=000123456781234
Logical device ID=01D3
Symmetrix ID=000123456780000
Logical device ID=042

Tried:

%v/^Symmetrix.*\nLogical/d

and

%v/^Symmetrix.*\rLogical/d

Then tried copy pasting the stuff so that the ^M would appear correctly:

%v/^Symmetrix.*^M^Logical/d

But none of this works. It does not filter anything and I get a blank screen. Kindly let me know where I am going wrong.

I recently started using gVim and am still getting a hang of it.

Regards, pmu

Upvotes: 0

Views: 101

Answers (1)

romainl
romainl

Reputation: 196751

This command works with the given sample:

:v/^\(Symmetrix\|Logical\)/d

We look for lines that don't start with either Symmetrix or Logical and we delete them.

The same command with less backslashes thanks to \verymagic:

:v/^\v(Symmetrix|Logical)/d

(edit) The main reason behind the failing of your attempts is that you actually match the Symmetrix line but not the Logical line, even if you introduced a \nLogical in your pattern: when the pattern spans multiple lines, the actual matched line is the first line, not the two lines you targeted in your pattern.

Upvotes: 4

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