When analyzing large log files, I often remove lines containing text I find irrelevant:
:g/whatever/d
Sometimes I find text that spans multiple lines, like stacktraces. For that, I record the steps taken (search, go to start anchor, delete to end anchor) and replay that macro with 100000#q. I'm searching for a function or a feature vim already has included that allows me to mark text and remove all lines containing this text. Ideally this would also work for block selection.
If I understood your problem right, this command should do what you want:
:g/NullPointer/,/omitt/d
Example:
Before:
1
2
3
NullPointerException1
4
5
6
omitted
7
NullPointerException2
8
9
omitted
10
After:
1
2
3
7
10
Please read :h edit-paragraph-join, there is good explanation for the command, your case is just changing join into d
:g/whatever/d2
will delete a line with whatever and the line after it. If you can find text that always happens in the first line, you can strip out all of the following text if it has the same number of lines by changing 2 to whatever you need.
You could actually just use some normal commands in a global command to achieve what you want, look at your example (hope i understood it more or less right):
someText
NullPointerException
...
omitted
you want to delte from the line above NPE until the line with omitted right?
Just use the following:
:g/NullPointerException/execute "normal! kddd/omitted\<cr>dd"
It maybe looks complex, but it isn't. It is not better than a macro1
, but i like commands more, because I always make errors recording macros.
Since it only uses normal vim movements, it is easy to adopt. If you f.e. not know where your previous anchor is, you could use ?anchor\<cr> instead of kd. For a better demonstration you will have to submit a realistic example.
[1] You could argue, that this only needs to be run once, but that is also true for a recursive macro http://vim.wikia.com/wiki/Record_a_recursive_macro
Thanks to the answers here, I was able to code a very handy function: The sources below enables one to select text and remove all lines with the same (or similar) text in the current buffer. That works with both in-line and multiline selection. As I said I was searching for something that made me faster in analyzing log files. Log files typically contain dates and times and these change all the time, so it's a good idea to have something that let's us ignore numbers. Let's see. I'm using these two mappings:
vnoremap d :<C-U>echo RemoveSelectionFromBuffer(0)<CR>
vnoremap D :<C-U>echo RemoveSelectionFromBuffer(1)<CR>
Typical usage:
Remove similar lines ignoring numbers: Shift+v, then Shift+d
Remove same matches (single line): Mark text inline (leaving out dates and times), then d
Remove same matches (multiline): Mark text across lines (leaving out dates and times), then d
Here's the source code:
" Removes lines matching the selected text from buffer.
function! RemoveSelectionFromBuffer(ignoreNumbers)
let lines = GetVisualSelection() " selected lines
" Escape backslashes and slashes (delimiters)
call map(lines, {k, v -> substitute(v, '\\\|/', '\\&', 'g')})
if a:ignoreNumbers == 1
" Substitute all numbers with \s*\d\s* - in formatted output matching
" lines may have whitespace instead of numbers. All backslashes need
" to be escaped because \V (very nomagic) will be used.
call map(lines, {k, v -> substitute(v, '\s*\d\+\s*', '\\s\\*\\d\\+\\s\\*', 'g')})
endif
let blc = line('$') " number of lines in buffer (before deletion)
let vlc = len(lines) " number of selected lines
let pattern = join(lines, '\_.') " support multiline patterns
let cmd = ':g/\V' . pattern . '/d_' . vlc " delete matching lines (d_3)
let pos = getpos('v') " save position
execute "silent " . cmd
call setpos('.', pos) " restore position
let dlc = blc - line('$') " number of deleted lines
let dmc = dlc / vlc " number of deleted matches
let cmd = substitute(cmd, '\(.\{50\}\).*', '\1...', '') " command output
let lout = dlc . ' line' . (dlc == 1 ? '' : 's')
let mout = '(' . dmc . ' match' . (dmc == 1 ? '' : 'es') . ')'
return printf('%s removed: %s', (vlc == 1 ? lout : lout . ' ' . mout), cmd)
endfunction
I took the GetVisualSelection() code from this answer.
function! GetVisualSelection()
if mode() == "v"
let [line_start, column_start] = getpos("v")[1:2]
let [line_end, column_end] = getpos(".")[1:2]
else
let [line_start, column_start] = getpos("'<")[1:2]
let [line_end, column_end] = getpos("'>")[1:2]
end
if (line2byte(line_start)+column_start) > (line2byte(line_end)+column_end)
let [line_start, column_start, line_end, column_end] =
\ [line_end, column_end, line_start, column_start]
end
let lines = getline(line_start, line_end)
if len(lines) == 0
return ''
endif
let lines[-1] = lines[-1][: column_end - 1]
let lines[0] = lines[0][column_start - 1:]
return lines
endfunction
Thanks, aepksbuck, DoktorOSwaldo and Kent.
I have a text file that looks like the following:
Chanelle
Jettie
Winnie
Jen
Shella
Krysta
Tish
Monika
Lynwood
Danae
2649
2466
2890
2224
2829
2427
2816
2648
2833
2453
I need to make it look like this
Chanelle 2649
Jettie 2466
... ...
I tried a lot on sublime editor but couldn't figure out the regex to do that. Can somebody demonstrate if it can be done.
I tested the following in Notepad++ but it should work universally.
Use this as the search string:
(?:(\s+[A-Za-z]+)(\r?\n))((?:\s*[A-Za-z]*\r?\n)+)\s+(\d+)
and this as the replacement:
$1 $4$2$3
Running a replace with it once will do one line at a time, if you run it multiple times it'll continue to replace lines until there are no matching lines left.
Alternatively, you can use this as the replacement if you want to have the values aligned by tabs, but it's not going to match in all cases:
$1\t\t$4$2$3
While the regex answer by SeinopSys will work, you don't need a regex to do this - instead, you can take advantage of Sublime's multiple cursors.
Place your cursor at the beginning of line 1, then hold down Shift↓ to select all the names.
Hit CtrlShiftL (Selection -> Split into Lines) to split the selection into lines.
CtrlC to copy.
Place your cursor on line 11 (the first number line) and press CtrlShift↓ (Windows/OS X) or AltShift↓ (Linux) to place a cursor at the beginning of each number line.
Hit CtrlV to paste the names before the numbers.
You can now delete the names at the top and you're all set. Alternatively, you could use CtrlX to cut the names in step 3.
I have a source document with the following text
Here is a bunch of text
...
Collect underpants
???
Profit!
...
More text
I would like to visually select the middle three lines and insert numbers in front of them:
Here is a bunch of text
...
1. Collect underpants
2. ???
3. Profit!
...
More text
All the solutions I found either put the numbers on their own new lines or prepended the actual line of the file.
How can I prepend a range of numbers to existing lines, starting with 1?
It makes for a good macro.
Add the first number to your line, and put your cursor back at the beginning.
Start a macro with qq (or q<any letter>)
Copy the number with yf<space> (yank find )
Move down a line with j
Paste your yank with P
Move back to the beginning of the line with 0
Increment the number with Ctrl-a
Back to the beginning again with 0 (incrementing positions you at the end of the number)
End the macro by typing q again
Play the macro with #q (or #<the letter you picked>)
Replay the macro as many times as you want with <number>## (## replays the last macro)
Profit!
To summarize the fun way, this GIF image is i1. <Esc>0qqyf jP0^a0q10#q.
To apply enumeration for all lines:
:let i=1 | g/^/s//\=i.'. '/ | let i=i+1
To enumerate only selected lines:
:let i=1 | '<,'>g/^/s//\=i.'. '/ | let i=i+1
Set non recursive mapping with following command and type ,enum in command mode when cursor is inside the lines you are going to enumerate.
:nn ,enum {j<C-v>}kI0. <Esc>vipg<C-a>
TL;DR
You can type :help CTRL-A to see an answer on your question.
{Visual}g CTRL-A Add [count] to the number or alphabetic character in
the highlighted text. If several lines are
highlighted, each one will be incremented by an
additional [count] (so effectively creating a
[count] incrementing sequence).
For Example, if you have this list of numbers:
1.
1.
1.
1.
Move to the second "1." and Visually select three
lines, pressing g CTRL-A results in:
1.
2.
3.
4.
If you have a paragraph (:help paragraph) you can select it (look at :help object-select). Suppose each new line in the paragraph needs to be enumerated.
{ jump to the beginning of current paragraph
j skip blank line, move one line down
<C-v> emulates Ctrl-v, turns on Visual mode
} jump to the end of current paragraph
k skip blank line, move one line up
required region selected, we can make multi row edit:
I go into Insert mode and place cursor in the beginning of each line
0. is added in the beginning of each line
<Esc> to change mode back to Normal
You should get list prepended with zeros. If you already have such, you can omit this part.
vip select inner paragraph (list prepended with "0. ")
g<C-a> does the magic
I have found it easier to enumerate with zeroes instead of omitting first line of the list to enumerate as said in documentation.
Note: personally I have no mappings. It is easier to remember what g <C-a> does and use it directly. Answer above describes usage of pure <C-a> which requires you to manually count whatever, on the other hand g <C-a> can increment numbers with given value (aka step) and have it's "internal counter".
Create a map for #DmitrySandalov solution:
vnoremap <silent> <Leader>n :<C-U>let i=1 \| '<,'>g/^/s//\=i.'. '/ \| let i=i+1 \| nohl<CR>
I have a file with long lines and need to see/ copy what the values are in a specic location(s) for the whole file but copy the rest of the line.
If the text width is small enough, ~184 columns, I can use :set colorcolumnnum to highlight the value. However over 184 characters it gets a bit unwieldy scrolling.
I tried :g/\%1237c/y Z, for one of the positions I needed, but that yanked the entire line.
eg for a smaller sample :g/\%49c/y Z will yank all of line 1 and 2 but I want to yank, or copy, the character at that column ie = on line 1 and x on line 2.
vim: filetype=help foldmethod=indent foldclose=all modifiable noreadonly
Table of Contents *sfcontents* *vim* *regex* *sfregex*
*sfsearch* - Search specific commands
|Ampersand-replaces-previous-pattern|
|append-a-global-search-to-a-register|
*sfHelp* Various Help related commands
There are two problems with your :g command:
For each matching line, the cursor is positioned on the first column. So even though you've matched at a particular column, that position is lost.
The \%c atom actually matches byte indices (what Vim somewhat confusingly names "columns"), so your measurement will be off for Tab and non-ASCII characters. Use the virtual column atom \%v instead.
Instead of :global, I would use :substitute with a replace-expression, in the idiom described at how to extract regex matches using vim:
:let t=[] | %s/\%49v./\=add(t, submatch(0))[-1]/g | let ## = join(t, "\n")
Alternatively, if you install my ExtractMatches plugin, I'd be that short command invocation:
:YankMatchesToReg /\%50v./
I have a data file as follows.
1,14.23,1.71,2.43,15.6,127,2.8,3.06,.28,2.29,5.64,1.04,3.92,1065
1,13.2,1.78,2.14,11.2,100,2.65,2.76,.26,1.28,4.38,1.05,3.4,1050
1,13.16,2.36,2.67,18.6,101,2.8,3.24,.3,2.81,5.68,1.03,3.17,1185
1,14.37,1.95,2.5,16.8,113,3.85,3.49,.24,2.18,7.8,.86,3.45,1480
1,13.24,2.59,2.87,21,118,2.8,2.69,.39,1.82,4.32,1.04,2.93,735
Using vim, I want to reomve the 1's from each of the lines and append them to the end. The resultant file would look like this:
14.23,1.71,2.43,15.6,127,2.8,3.06,.28,2.29,5.64,1.04,3.92,1065,1
13.2,1.78,2.14,11.2,100,2.65,2.76,.26,1.28,4.38,1.05,3.4,1050,1
13.16,2.36,2.67,18.6,101,2.8,3.24,.3,2.81,5.68,1.03,3.17,1185,1
14.37,1.95,2.5,16.8,113,3.85,3.49,.24,2.18,7.8,.86,3.45,1480,1
13.24,2.59,2.87,21,118,2.8,2.69,.39,1.82,4.32,1.04,2.93,735,1
I was looking for an elegant way to do this.
Actually I tried it like
:%s/$/,/g
And then
:%s/$/^./g
But I could not make it to work.
EDIT : Well, actually I made one mistake in my question. In the data-file, the first character is not always 1, they are mixture of 1, 2 and 3. So, from all the answers from this questions, I came up with the solution --
:%s/^\([1-3]\),\(.*\)/\2,\1/g
and it is working now.
A regular expression that doesn't care which number, its digits, or separator you've used. That is, this would work for lines that have both 1 as their first number, or 114:
:%s/\([0-9]*\)\(.\)\(.*\)/\3\2\1/
Explanation:
:%s// - Substitute every line (%)
\(<something>\) - Extract and store to \n
[0-9]* - A number 0 or more times
. - Every char, in this case,
.* - Every char 0 or more times
\3\2\1 - Replace what is captured with \(\)
So: Cut up 1 , <the rest> to \1, \2 and \3 respectively, and reorder them.
This
:%s/^1,//
:%s/$/,1/
could be somewhat simpler to understand.
:%s/^1,\(.*\)/\1,1/
This will do the replacement on each line in the file. The \1 replaces everything captured by the (.*)
:%s/1,\(.*$\)/\1,1/gc
.........................
You could also solve this one using a macro. First, think about how to delete the 1, from the start of a line and append it to the end:
0 go the the start of the line
df, delete everything to and including the first ,
A,<ESC> append a comma to the end of the line
p paste the thing you deleted with df,
x delete the trailing comma
So, to sum it up, the following will convert a single line:
0df,A,<ESC>px
Now if you'd like to apply this set of modifications to all the lines, you will first need to record them:
qj start recording into the 'j' register
0df,A,<ESC>px convert a single line
j go to the next line
q stop recording
Finally, you can execute the macro anytime you want using #j, or convert your entire file with 99#j (using a higher number than 99 if you have more than 99 lines).
Here's the complete version:
qj0df,A,<ESC>pxjq99#j
This one might be easier to understand than the other solutions if you're not used to regular expressions!