Just change the pattern that vgersh99 said try something like
sed 's/\\n/\"^["]*\"'
\" for checking starting quotes ^["] for checking anything other than " (inside [] no metachr except '-' means anything so no need for \") and lastly \\n for newline. g as suggested by vgersh stands for globaly and so should not be used here.
I haven't run this (away from any Linux box) so in case of problem just fiddle with above pattern & if u still have problem plz. do tell me.
I think you're confusing the syntax of 's':
Code:
s/regular expression/replacement/flags
Substitute the replacement string for
instances of the regular expression in the
pattern space. Any character other than
backslash or newline can be used instead of a
slash to delimit the RE and the replacement.
Within the RE and the replacement, the RE del-
imiter itself can be used as a literal charac-
ter if it is preceded by a backslash.
An ampersand (&) appearing in the replacement
will be replaced by the string matching the
RE. The special meaning of & in this context
can be suppressed by preceding it by
backslash. The characters \n, where n is a
digit, will be replaced by the text matched by
the corresponding backreference expression.
For each backslash (\) encountered in scanning
replacement from beginning to end, the follow-
ing character loses its special meaning (if
any). It is unspecified what special meaning
is given to any character other than &, \ or
digits.
Hi,
I have a fixed width flat file which has 1 as the first char and E as the last character. Some of the records have a carriage return /line feeds .
how do I remove them?
Let me know.
Thanks
VSK (8 Replies)
Hi all,
I know this is **awfully** general but.....
I have a script which does, basically...
for file in `find command`; do
some stuff
more stuff
echo '.\c'
done
I want to output the '.' char just to give an idea of progress. However, it works fine for a while and then I... (2 Replies)
Hi gurus
I am stripping lots of email addresses from a file with this
grep "^To" file.log |awk '{print "1,"$2}' > recipients.out
file.log looks something like this:
oasndfoasnosf
To: person@email.co.uk
lsdfjosd
sdlfnmsopdfwer
dtlghodrgn
To: person2@emailsss.com
sldfnsdf
I... (5 Replies)
Hi,
I have a .properties file that a read in some values in an .sh file but everytime I put it out on the server it fails.
If I copy and paste the values of the .properties file on my local machine to the .properties file on the server it works just fine. Someone mentioned to see if it has
dos... (3 Replies)
I have some data, each record (line) ends with a line feed (\n). Each field is pipe (|) delimited.
1|short desc|long text|2001-01-01 01:01
2|short desc| long
text |2002-02-02 02:02
3|short desc| long text | 2003-03-03 03:03
4|short desc
| long text | 2004-04-04 04:04
... (10 Replies)
Hi everyone,
I'm very new to using sed, run through some tutorials and everything but I've hit a problem that I'm unable to solve by myself.
I need to remove all linefeeds that are followed by a particular character (in this case a semicolon). So basically, all lines starting with a semicolon... (5 Replies)
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... (14 Replies)
Hi,
I was doing some research and can't seem to find anything. I'm trying to automate a process by creating a script to read a csv line and column and assigning that value to a variable for the script to process it.
Also if you could tell me the line and column if it's on another work ... (3 Replies)
Discussion started by: vpundit
3 Replies
LEARN ABOUT OPENDARWIN
regsub
regsub(n) Tcl Built-In Commands regsub(n)
__________________________________________________________________________________________________________________________________________________NAME
regsub - Perform substitutions based on regular expression pattern matching
SYNOPSIS
regsub ?switches? exp string subSpec ?varName? |
_________________________________________________________________DESCRIPTION
This command matches the regular expression exp against string, and either copies string to the variable whose name is given by varName or |
returns string if varName is not present. (Regular expression matching is described in the re_syntax reference page.) If there is a
match, then while copying string to varName (or to the result of this command if varName is not present) the portion of string that matched |
exp is replaced with subSpec. If subSpec contains a ``&'' or `` '', then it is replaced in the substitution with the portion of string
that matched exp. If subSpec contains a ``
'', where n is a digit between 1 and 9, then it is replaced in the substitution with the por-
tion of string that matched the n-th parenthesized subexpression of exp. Additional backslashes may be used in subSpec to prevent special
interpretation of ``&'' or `` '' or ``
'' or backslash. The use of backslashes in subSpec tends to interact badly with the Tcl parser's
use of backslashes, so it's generally safest to enclose subSpec in braces if it includes backslashes.
If the initial arguments to regsub start with - then they are treated as switches. The following switches are currently supported:
-all All ranges in string that match exp are found and substitution is performed for each of these ranges. Without this switch only
the first matching range is found and substituted. If -all is specified, then ``&'' and ``
'' sequences are handled for each
substitution using the information from the corresponding match.
-expanded Enables use of the expanded regular expression syntax where whitespace and comments are ignored. This is the same as speci-
fying the (?x) embedded option (see the re_syntax manual page).
-line Enables newline-sensitive matching. By default, newline is a completely ordinary character with no special meaning. With
this flag, `[^' bracket expressions and `.' never match newline, `^' matches an empty string after any newline in addition
to its normal function, and `$' matches an empty string before any newline in addition to its normal function. This flag is
equivalent to specifying both -linestop and -lineanchor, or the (?n) embedded option (see the re_syntax manual page).
-linestop Changes the behavior of `[^' bracket expressions and `.' so that they stop at newlines. This is the same as specifying the
(?p) embedded option (see the re_syntax manual page).
-lineanchor Changes the behavior of `^' and `$' (the ``anchors'') so they match the beginning and end of a line respectively. This is
the same as specifying the (?w) embedded option (see the re_syntax manual page).
-nocase Upper-case characters in string will be converted to lower-case before matching against exp; however, substitutions specified by
subSpec use the original unconverted form of string.
-start index
Specifies a character index offset into the string to start matching the regular expression at. When using this switch, `^' will
not match the beginning of the line, and A will still match the start of the string at index. index will be constrained to the
bounds of the input string.
-- Marks the end of switches. The argument following this one will be treated as exp even if it starts with a -.
If varName is supplied, the command returns a count of the number of matching ranges that were found and replaced, otherwise the string |
after replacement is returned. See the manual entry for regexp for details on the interpretation of regular expressions.
SEE ALSO
regexp(n), re_syntax(n)
KEYWORDS
match, pattern, regular expression, substitute
Tcl 8.3 regsub(n)