Including a space in the [ ] is okay but there is also (at least) one following space.
So either have
i.e. a following space is not required; this would also cover
Or have
i.e. a [ ] character may occur 0 or 1 times, followed by (at least) one space.
Hi
I have a file which have say about 100,000 records..
the records in it look like
Some kind of text 1234567891 abcd February 14, 2008 03:58:54 AM lmnop
This is how it looks.. if u notice there is a 2byte space between each column.. and im planning to replace that with '|' ..
... (11 Replies)
Hello All,
I have a file with thousands of records:
eg:
|000222|123456987|||||||AARONSON| JOHN P|||PRIMARY |P
|000111|567894521|||||||ATHENS| WILLIAM k|||AAAA|L
Expected:
|000222|123456987|||||||AARONSON| JOHN |P|||PRIMARY |P
|000111|567894521|||||||ATHENS| WILLIAM |k|||AAAA|L
I... (6 Replies)
I am trying to extract 'postmaster' from the following string:
PenaltyError:=554 5.7.1 Error, send your mail to postmaster@LOCALDOMAIN
using the following command:
cat /usr/share/assp/assp.cfg | grep ^PenaltyError:= | cut -d '@' -f1 | cut -f8
but it returns:
PenaltyError:=554 5.7.1 Error,... (10 Replies)
Hello,
Is there a direct command to check if the delimiter in your file is a tab or a space? And how can they be converted from one to another.
Thanks,
G (4 Replies)
I have a csv file and there is a problem which I need to resolve.
Column1,Column2,Colum3,Column4
,x,y,z
,d,c,v
t,l,m,n
,h,s,k
,k,,y
z,j, ,p
Now if you see column1 for row 1 and row 4 though they are null there is a space but in case of row2 and row 5 there is no space.
I want row... (3 Replies)
I have more than 1000 files to parse. Each file contains few lines (number of lines varies) followed by a header line having all column's name (SPOT, NAME etc) and then values for those columns.
**Example File:
sdgafh
dfhaadfha
sfgaf dhah jkthdj
SPOT NAME GENE_NAME CH_MEAN CHDN_MED ... (11 Replies)
not sure if i'm doing this right i'm new tho this but i'm trying to use a space as a delimiter with the cut command
my code is
size=$( du -k -S -s /home/cmik | cut -d' ' -f1 )
i've also tried -f2 and switching the -d and -f around if that does anything (3 Replies)
Hi there,
After lots of reading I figured out how to use sed to parse my file.
This file is called services.txt:
00a1:ffff0000:0018:01f4:1:477
BravaNL
00a2:ffff0000:0018:01f4:1:471
MAX
00a3:ffff0000:000b:01f4:1:390
HaberTürk... (5 Replies)
Hi ,
Please suggest me how do I use : (colon and one space) as a delimiter in awk
Best regards,
Vishal (2 Replies)
Discussion started by: Vishal_dba
2 Replies
LEARN ABOUT PLAN9
regexp
REGEXP(6) Games Manual REGEXP(6)NAME
regexp - regular expression notation
DESCRIPTION
A regular expression specifies a set of strings of characters. A member of this set of strings is said to be matched by the regular
expression. In many applications a delimiter character, commonly bounds a regular expression. In the following specification for regular
expressions the word `character' means any character (rune) but newline.
The syntax for a regular expression e0 is
e3: literal | charclass | '.' | '^' | '$' | '(' e0 ')'
e2: e3
| e2 REP
REP: '*' | '+' | '?'
e1: e2
| e1 e2
e0: e1
| e0 '|' e1
A literal is any non-metacharacter, or a metacharacter (one of .*+?[]()|^$), or the delimiter preceded by
A charclass is a nonempty string s bracketed [s] (or [^s]); it matches any character in (or not in) s. A negated character class never
matches newline. A substring a-b, with a and b in ascending order, stands for the inclusive range of characters between a and b. In s,
the metacharacters an initial and the regular expression delimiter must be preceded by a other metacharacters have no special meaning and
may appear unescaped.
A matches any character.
A matches the beginning of a line; matches the end of the line.
The REP operators match zero or more (*), one or more (+), zero or one (?), instances respectively of the preceding regular expression e2.
A concatenated regular expression, e1e2, matches a match to e1 followed by a match to e2.
An alternative regular expression, e0|e1, matches either a match to e0 or a match to e1.
A match to any part of a regular expression extends as far as possible without preventing a match to the remainder of the regular expres-
sion.
SEE ALSO awk(1), ed(1), sam(1), sed(1), regexp(2)REGEXP(6)