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Delete the line started with nondigit or newline character

 
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# 1  
Old 02-16-2010
Delete the line started with nondigit or newline character
i want to delete the line which is not started with numeric in vim.

Code:
vim temp.txt

 Volume in drive D is DATA
 Volume Serial Number is 8C52-2055

 Directory of D:\data\notes

02/16/2010  03:09 PM    <DIR>          .
02/16/2010  03:09 PM    <DIR>          ..
09/11/1999  03:03 AM           327,680 AgentRunner.nsf
10/14/1999  10:42 PM            77,312 alog4.ntf

12/30/1999  04:26 AM           518,144 doclbm50.ntf
01/05/2000  09:02 AM           515,072 doclbs5.ntf
06/26/2001  11:03 PM           564,224 doclbw50.ntf
09/14/2006  09:40 AM    <DIR>          domino
08/02/2000  12:15 AM           693,248 us.med
09/14/2006  09:40 AM    <DIR>          W32
              42 File(s)     26,234,140 bytes
               7 Dir(s)  10,324,987,904 bytes free

if i go for
Code:
:%g/^\D/d

then it only remove the line which is not started with nondigit but some blank lines are not removed . Could it possible to find line started with nondigit or newline character so that we could remove it at the same instance .
Code:
:%g/^[\D\n]/d

this things is not working as ^ act as a negate character here.
Is there any solution for it.

Thank & Regards
Dina
Last edited by Scott; 02-16-2010 at 07:20 AM.. Reason: Code tags please...
# 2  
Old 02-16-2010
It's been a little bit hard but finally I can do it

Code:
:%!sed '/^[^0-9]/d;/^$/d'

I execute sed command using current file as input and to receive output also, in sed command I have two scripts, first one delete all lines that start with character different to digits (0-9), and secod script deletes empty lines
# 3  
Old 02-16-2010
Tools is grep what you are looking for?
Code:
>cat vim.txt
vim temp.txt

 Volume in drive D is DATA
 Volume Serial Number is 8C52-2055

 Directory of D:\data\notes

02/16/2010  03:09 PM    <DIR>          .
02/16/2010  03:09 PM    <DIR>          ..
09/11/1999  03:03 AM           327,680 AgentRunner.nsf
10/14/1999  10:42 PM            77,312 alog4.ntf

12/30/1999  04:26 AM           518,144 doclbm50.ntf
01/05/2000  09:02 AM           515,072 doclbs5.ntf
06/26/2001  11:03 PM           564,224 doclbw50.ntf
09/14/2006  09:40 AM    <DIR>          domino
08/02/2000  12:15 AM           693,248 us.med
09/14/2006  09:40 AM    <DIR>          W32
              42 File(s)     26,234,140 bytes
               7 Dir(s)  10,324,987,904 bytes free


>cat vim.txt | grep "^[0-9]"
02/16/2010  03:09 PM    <DIR>          .
02/16/2010  03:09 PM    <DIR>          ..
09/11/1999  03:03 AM           327,680 AgentRunner.nsf
10/14/1999  10:42 PM            77,312 alog4.ntf
12/30/1999  04:26 AM           518,144 doclbm50.ntf
01/05/2000  09:02 AM           515,072 doclbs5.ntf
06/26/2001  11:03 PM           564,224 doclbw50.ntf
09/14/2006  09:40 AM    <DIR>          domino
08/02/2000  12:15 AM           693,248 us.med
09/14/2006  09:40 AM    <DIR>          W32

>

# 4  
Old 02-16-2010
Code:
grep ^[01] temp.txt

# 5  
Old 02-17-2010
@ kcoder24

i got your point , But i need is there any regular expression to do both the number or space search at the first character of the line.
# 6  
Old 02-17-2010
Tools check for digit or space
Code:
>cat vim.txt | grep -e "^[0-9]" -e"^ "
 Volume in drive D is DATA
 Volume Serial Number is 8C52-2055
 Directory of D:\data\notes
02/16/2010  03:09 PM    <DIR>          .
02/16/2010  03:09 PM    <DIR>          ..
09/11/1999  03:03 AM           327,680 AgentRunner.nsf
10/14/1999  10:42 PM            77,312 alog4.ntf
12/30/1999  04:26 AM           518,144 doclbm50.ntf
01/05/2000  09:02 AM           515,072 doclbs5.ntf
06/26/2001  11:03 PM           564,224 doclbw50.ntf
09/14/2006  09:40 AM    <DIR>          domino
08/02/2000  12:15 AM           693,248 us.med
09/14/2006  09:40 AM    <DIR>          W32
              42 File(s)     26,234,140 bytes
               7 Dir(s)  10,324,987,904 bytes free

 
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