11-05-2007
Single quotes become ordinary characters when inside double-quotes. So you can do this:
echo "that's OK"
and this is not an error or open-quote. So putting single-quotes inside a quoted sed-expression is OK, but is does not quote the text between them.
The code above by Jean-Pierre looks OK to me.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi guys,
Suppose you have 100 files in a folder and you want to replace all occurances of a word say "ABCD" in those files with "DCBA", how would you do
it ???
jatin (13 Replies)
Discussion started by: jatins_s
13 Replies
2. UNIX for Dummies Questions & Answers
I used the following script
cd pathname
for y in `ls *`;
do sed "s/ABCD/DCBA/g" $y > temp; mv temp $y;
done
and it worked fine for finding and replacing strings with names etc. in all files of the given path.
I'm trying to replace a string which consists of path (location of file)
... (2 Replies)
Discussion started by: pharos467
2 Replies
3. Shell Programming and Scripting
I have multiple script files that I have created, that allow me to simply replace a few tokens at the top of the file, and then not have to go through the actual script and change anything. I have about 10 of them, but I was hoping to find a way to write a small script that would allow me to input... (20 Replies)
Discussion started by: cbo0485
20 Replies
4. Shell Programming and Scripting
find . -type f -name "*.sql" -print|xargs perl -i -pe 's/pattern/replaced/g'
this is simple logic to find and replace in multiple files & folders
Hope this helps.
Thanks
Zaheer (0 Replies)
Discussion started by: Zaheer.mic
0 Replies
5. UNIX for Dummies Questions & Answers
Hi, I'm new to Unix. My understanding of Unix and its command is very limited.
I have about 1000 text files that have a word in it that I need to replace with a different word.
e.g.
a.txt has 1 line of txt: monday, tuesday, wednesday
b.txt has 1 line of txt: monday, tuesday,... (5 Replies)
Discussion started by: millsy5
5 Replies
6. Shell Programming and Scripting
Hey guys. I know pratically 0 about Linux, so could anyone please give me instructions on how to accomplish this ?
The distro is RedHat 4.1.2 and i need to find and replace a multiple lines string in several php files across subdirectories.
So lets say im at root/dir1/dir2/ , when i execute... (12 Replies)
Discussion started by: spfc_dmt
12 Replies
7. Shell Programming and Scripting
Hi all
This is my first post. Please bear with me with all my mistakes. I started learning shell since couple of days now and this might be quite basic for all, i want to search for files in a directory containing specific string and replace it with new string. The code i wrote is quite bulky... (2 Replies)
Discussion started by: theprogrammer
2 Replies
8. Shell Programming and Scripting
Hi,
following Perl code i used for finding multiple strings and replace with single string.
code:
#!/usr/bin/perl
my @files = <*.txt>;
foreach $fileName (@files) {
print "$fileName\n";
my $searchStr = ',rdata\)' | ',,rdata\)' | ', ,rdata\)';
my $replaceStr =... (2 Replies)
Discussion started by: chettyravi
2 Replies
9. Shell Programming and Scripting
Hi,
I have php files in main dir and sub dir's as well.
I need to find "new mysqli('localhost', 'System', 'xxxxxx', 'System', '3306');"
and replace as "new mysqli('localhost', 'unx_sys', 'yyyy', 'unx_sys', '3306');"
I tried like:
sed 's/new mysqli\(*\)\;$/new... (1 Reply)
Discussion started by: ashokvpp
1 Replies
10. UNIX for Beginners Questions & Answers
Hello everybody, I need your help.
I have a php site that was expoited, the hacker has injected into many php files a phishing code that was discovered and removed in order to have again a clean code. Now we need to remove from many php files that malware. I need to create a script that find and... (2 Replies)
Discussion started by: ninocap
2 Replies
LEARN ABOUT REDHAT
text::parsewords
Text::ParseWords(3pm) Perl Programmers Reference Guide Text::ParseWords(3pm)
NAME
Text::ParseWords - parse text into an array of tokens or array of arrays
SYNOPSIS
use Text::ParseWords;
@lists = &nested_quotewords($delim, $keep, @lines);
@words = "ewords($delim, $keep, @lines);
@words = &shellwords(@lines);
@words = &parse_line($delim, $keep, $line);
@words = &old_shellwords(@lines); # DEPRECATED!
DESCRIPTION
The &nested_quotewords() and "ewords() functions accept a delimiter (which can be a regular expression) and a list of lines and then
breaks those lines up into a list of words ignoring delimiters that appear inside quotes. "ewords() returns all of the tokens in a
single long list, while &nested_quotewords() returns a list of token lists corresponding to the elements of @lines. &parse_line() does
tokenizing on a single string. The &*quotewords() functions simply call &parse_lines(), so if you're only splitting one line you can call
&parse_lines() directly and save a function call.
The $keep argument is a boolean flag. If true, then the tokens are split on the specified delimiter, but all other characters (quotes,
backslashes, etc.) are kept in the tokens. If $keep is false then the &*quotewords() functions remove all quotes and backslashes that are
not themselves backslash-escaped or inside of single quotes (i.e., "ewords() tries to interpret these characters just like the Bourne
shell). NB: these semantics are significantly different from the original version of this module shipped with Perl 5.000 through 5.004.
As an additional feature, $keep may be the keyword "delimiters" which causes the functions to preserve the delimiters in each string as
tokens in the token lists, in addition to preserving quote and backslash characters.
&shellwords() is written as a special case of "ewords(), and it does token parsing with whitespace as a delimiter-- similar to most
Unix shells.
EXAMPLES
The sample program:
use Text::ParseWords;
@words = "ewords('s+', 0, q{this is "a test" of quotewords "for you});
$i = 0;
foreach (@words) {
print "$i: <$_>
";
$i++;
}
produces:
0: <this>
1: <is>
2: <a test>
3: <of quotewords>
4: <"for>
5: <you>
demonstrating:
0 a simple word
1 multiple spaces are skipped because of our $delim
2 use of quotes to include a space in a word
3 use of a backslash to include a space in a word
4 use of a backslash to remove the special meaning of a double-quote
5 another simple word (note the lack of effect of the backslashed double-quote)
Replacing ""ewords('s+', 0, q{this is...})" with "&shellwords(q{this is...})" is a simpler way to accomplish the same thing.
AUTHORS
Maintainer is Hal Pomeranz <pomeranz@netcom.com>, 1994-1997 (Original author unknown). Much of the code for &parse_line() (including the
primary regexp) from Joerk Behrends <jbehrends@multimediaproduzenten.de>.
Examples section another documentation provided by John Heidemann <johnh@ISI.EDU>
Bug reports, patches, and nagging provided by lots of folks-- thanks everybody! Special thanks to Michael Schwern <schwern@envirolink.org>
for assuring me that a &nested_quotewords() would be useful, and to Jeff Friedl <jfriedl@yahoo-inc.com> for telling me not to worry about
error-checking (sort of-- you had to be there).
perl v5.8.0 2002-06-01 Text::ParseWords(3pm)