Regex in grep to match all lines ending with a double quote (") OR a single quote (')
Hi,
I've been trying to write a regex to use in egrep (in a shell script) that'll fetch the names of all the files that match a particular pattern. I expect to match the following line in a file:
The regex I'm using to match the same is:
But I now want to search all filenames which have the name quoted in either " OR '
i.e., the pattern to match could be:
OR
I've tried various ways to include ' in the regex I've posted above, but I'm not able to get it right. I've tried using a backslash (\) and also tried things like [\'\"].
Any help to get this right is appreciated.
Thanks.
Last edited by rbatte1; 07-07-2016 at 11:37 AM..
Reason: Code tags
i m trying the following command but its not working:
sed 's/find/\'replace\'/g' myFile
but the sed enters into new line
# sed 's/find/re\'place/g' myFile
>
I havn't any idea how to put single quote in my replace string. Your early help woud be appreciated. Thanx (2 Replies)
Hi Experts...
I am trying to find out separting the records which are staring with double quote(") and a six digit number(ex: 012456,987654,etc) from a file.
For example :
Source File :
"116462","SMITH CHEVR
"164098","SIMPS
"104498","SIMPSONVIL
"Export lments"
"Copyrts... (4 Replies)
Hi,
I search for the string below which contains a single quote,
some text '/home/myuser
in the file myfile.txt as another user with the grep command as follows
su - myuser -c "grep 'some text \'/home/myuser' myfile.txt"
I also tried using two backslashes
su - myuser... (6 Replies)
i want to replace mistaken quotes in line starting with tag 300 and relocate the quote in the correct position so the input is
223;25
224;20100428064823;1;0;0;0;0;0;0;0;8;1;3;9697;18744;;;;;;;;;;;;
300;X;Event:... (3 Replies)
Hello ,
I got html file , these file are normal html as we can see .
what i would like to do is in this html file , i want to print only string start with double quote and end with double quote by line by line.
<tr><td valign=top>25.</td><td><A... (8 Replies)
I need to check whether first character of variable is single quote.
I tried the below constructions but they are all not working (always return true)
if (test `echo "$REGEXP" |cut -c1` != "'"); then echo "TRUE"; fi
if (test `echo "$REGEXP" |cut -c1` != '\''); then echo "TRUE"; fi
if (test... (5 Replies)
Hi Froum.
I have tried in vain to find a solution for this problem - I'm trying to replace any double quotes within a quoted string with a single quote, leaving everything else as is.
I have the following data:
Before:
... (32 Replies)
Hi All ,
We have source data file as csv file and since data could contain commas ,each attribute is quoted into double quotes.However problem is that some of the attributa data also contain double quotes which is converted to double double quote while creating csv file
XLs data :
... (2 Replies)
From:
1,2,3,4,5,This is a test
6,7,8,9,0,"This, is a test"
1,9,2,8,3,"This is a ""test"""
4,7,3,1,8,""""
To:
1,2,3,4,5,This is a test
6,7,8,9,0,"This; is a test"
1,9,2,8,3,"This is a ''test''"
4,7,3,1,8,"''"Is there an easy syntax I'm overlooking? There will always be an odd number... (5 Replies)
Hello,
I'd like to print line if column 5th doesn't match with exm. But to reach there I have to make sure I match single quote.
I'm struggling to match that.
I've input file like:
Warning: Variants 'exm480340' and '5:137534453:G:C' have the same position.
Warning: Variants 'exm480345'... (9 Replies)
Discussion started by: genome
9 Replies
LEARN ABOUT V7
grep
GREP(1) General Commands Manual GREP(1)NAME
grep, egrep, fgrep - search a file for a pattern
SYNOPSIS
grep [ option ] ... expression [ file ] ...
egrep [ option ] ... [ expression ] [ file ] ...
fgrep [ option ] ... [ strings ] [ file ]
DESCRIPTION
Commands of the grep family search the input files (standard input default) for lines matching a pattern. Normally, each line found is
copied to the standard output; unless the -h flag is used, the file name is shown if there is more than one input file.
Grep patterns are limited regular expressions in the style of ed(1); it uses a compact nondeterministic algorithm. Egrep patterns are full
regular expressions; it uses a fast deterministic algorithm that sometimes needs exponential space. Fgrep patterns are fixed strings; it
is fast and compact.
The following options are recognized.
-v All lines but those matching are printed.
-c Only a count of matching lines is printed.
-l The names of files with matching lines are listed (once) separated by newlines.
-n Each line is preceded by its line number in the file.
-b Each line is preceded by the block number on which it was found. This is sometimes useful in locating disk block numbers by con-
text.
-s No output is produced, only status.
-h Do not print filename headers with output lines.
-y Lower case letters in the pattern will also match upper case letters in the input (grep only).
-e expression
Same as a simple expression argument, but useful when the expression begins with a -.
-f file
The regular expression (egrep) or string list (fgrep) is taken from the file.
-x (Exact) only lines matched in their entirety are printed (fgrep only).
Care should be taken when using the characters $ * [ ^ | ? ' " ( ) and in the expression as they are also meaningful to the Shell. It is
safest to enclose the entire expression argument in single quotes ' '.
Fgrep searches for lines that contain one of the (newline-separated) strings.
Egrep accepts extended regular expressions. In the following description `character' excludes newline:
A followed by a single character matches that character.
The character ^ ($) matches the beginning (end) of a line.
A . matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by * (+, ?) matches a sequence of 0 or more (1 or more, 0 or 1) matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or newline match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is [] then *+? then concatenation then | and newline.
SEE ALSO ed(1), sed(1), sh(1)DIAGNOSTICS
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
BUGS
Ideally there should be only one grep, but we don't know a single algorithm that spans a wide enough range of space-time tradeoffs.
Lines are limited to 256 characters; longer lines are truncated.
GREP(1)