General :: Retrieve The Text Difference Between Two Strings Having Substrings?
May 10, 2011
I got requirement to find the difference between two strings and write the difference to new file by comparing the substrings separted by commas
Below mentioned is an example of requirement
String1 --> ABC,DEF,GHI,JKL
String2 --> MNO,ABC,XYZ,DEF
In String1 and String2 the substrings are separted by commas. The substrings which are common between String1 and String2 are ABC,DEF this common substrings has to be written to a file say common.txt ( having the text ABC,DEF). And the substrings GHI,JKL in String1 which are not present in String2 has to be written to another file say String1Extra.txt (having the text GHI,JKL). In the same way the substrings MNO,XYZ from String2 which are not present in String1 has to be written to another file say String2Extras.txt(having the text MNO,XYZ) .
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May 19, 2011
What would be the best way to search for a file that contains a string similar to this:
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Feb 3, 2011
Long story short, I got a folder with nearly 800,000 php files. I would like to search each file for a string and if it exists in that file, the file gets copied to another directory. Is this possible from the terminal? So far I got: grep -i -n -r 'ppr-1792' * | cp $1 move_to_here
But this obviously doesn't work. $1 needs to be the file name that contains matching text.
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Mar 17, 2011
Trying to remove lines from a syslog text file that have duplicate strings
Mar 10 06:51:11[http-8080-1] INFO com.MYCOMPANY.webservices.userservice.web.UserServiceController [u:2533274802474744|360] Authorize [platformI$tformIdAndOs=2533274802474744|360, userRegion=America|360]
then a few lines down
Mar 10 06:52:03 [http-8080-1] INFO com.MYCOMPANY.webservices.userservice.web.UserServiceController [u:2533274802474744|360] Authorize [platformI$tformIdAndOs=2533274802474744|360, userRegion=America|360
got the same thing in terms of a u: number but the issue is I need to remove duplicates and just leave one and the file has multiple duplicates of different u: numbers and it's 14,000 lines long. can anyone tell me if I can use awk? sed? or sort for something like this to? removing lines that have a certain string in there that's a duplicate.
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Jul 29, 2010
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 :
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Feb 28, 2011
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]...
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Jul 14, 2010
I want the difference of two text files(a.txt & b.txt) into a third text file(c.txt). i.e. New or Differert rows of a.txt compared to b.txt
a.txt>
10128|10153|999999
10343|10153|000
10345|10153|3846
10351|10153|3846
b.txt>
10128|10153|999999
10343|10153|3853
10345|10153|3853
10349|10153|3853
c.txt should be like>
10343|10153|000
10351|10153|3846
I tried comm,but man says that the files have to be sorted in order to use comm. I dont want to sort the files.
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Mar 31, 2010
I am not especially cli adept so could someone tell me the best way to use the diff command to get the difference between a string of text and the contents of a file instead of between the contents of two files?
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Jul 16, 2010
Something very handy to do in a Linux shell, is manipulating files and strings - essentially parsing data. Write a utility which will scan in a text file and search and replace strings. We also want to keep track of how many strings we've replaced.
I know that my command would look like this: <utility name> <filename> <stringToSearchFor> <stringToReplaceWith>
Code: #!/bin/bash
[code]....
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Feb 23, 2010
This should be simple but I can't seem to find what I am looking for.I want to search a text file for the existence of certain strings and execute a command if they exist, something along the lines of:
if <string> exists
command
or
if <any member of this list exists>
command
I know how to manually search a file with grep, cat, etc., but the "if this exists" part eludes me.
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Jun 23, 2011
im trying to receive a string from user, then divide it into groups of strings with 3 elements only. meaning if input is:
12345 it should give 123 and 45
123456 it should give 123 and 456
1234567 it should give 123 and 456 and 7
anyway what happens based on my code is that it works fine with first two (when it has groups of 3 elements and 2 element, and also when it has groups of all 3 elements) but for the last case (when makes groups of 3 elements and 1 group of 1 element) it shouws as "123 456 7 D"!! meaning it adds one extra character to the last element out of no where!
here is my code:
Code:
#include <iostream>
#include <conio>
struct array
{
[Code]....
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Nov 15, 2010
I am using sed to process an ascii tcpdump file whereby each packet is processed into a line with the same number of columns and useful information is pulled out like the time, packet type, length, and also IP addresses, payload type and port numbers where appropriate. The time is already changed to seconds, followed by the protocol over ethernet, such as IP, IP6, ARP etc. and I can change anything it detects as IP, IP6 and ARP into some other string, pulling out necessary information depending on the protocol and payload.The beginning part of the search for IP starts with the sed search /([0-9][0-9]*.[0-9][0-9]*)[ ]IP[ ,] ... /, where time is in seconds and ellipses means more stuff, and likewise for IP6 and ARP.But how do I process the lines that are NOT IP, IP6 or ARP? (Specifically NOT /IP[ ,]/, /IP6[ ,]/ or /ARP[ ,]/.) So that I can format them into a string with the same number of columns.
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Jul 20, 2011
I'm on Ubuntu 11.04. I get the above error when running a utility to get code from a version control system (StarTeam). The error looks generic enough that I'm hoping its an easily resolvable system problem. Below is how I get it ...
Code:
$ /bin/sh -c stcmd label -x -nologo -stop -p username:password@mydomain.com:9999/NNA/NNA/Technology/nna/tools/selenium -nl selenium-utils-1.0 -b
strings: '/lib/libc.so.6': No such file
[code].....
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Jan 29, 2010
Is there a faster way to search for a file containing a given string than using grep -re "string" /
This takes a long time to search through the entire system, so I was wondering if there is a faster way. I don't know the name of the file, just that it will contain a given string.
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May 11, 2011
Let me know unix commands to implement set operations on strings.
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Jan 15, 2010
fakeFile's contents :
Code:
blah $(date +%F) blah
fakeScript's contents :
Code:
while read line; do
echo $line
done < "fakeFile"
so here's the problem : is there any way to evaluate the fakeFile's contents (in the fakeScript), so that the term "$(date +%F)" (or any other bash script) in a string , translates to it's corresponding value ? (in this example , we want to have "blah current date" instead of " blah $(bash script) blah " )
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Mar 22, 2010
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.
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Jun 24, 2011
I have this piece of code with some template strings.
Code:
Big_L: $Big_L
$Big_R
$Lambda_tf
$Epsilon_1
$mu
$n_0
$ms
$Delta_R
$Epsilon_2
$Lambda_d
$Epsilon_3
$Small_N
$Small_Q
How can I insert exactly the same template strings in front of each string, but just without the '$' sign (see the first line for an example)?
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Oct 5, 2010
I've been surfing and searching the net quit a while now to make my own script, but I haven't been really successful ever since I want to make a script which can remove strings from my mp3 collection (file names).
For example:
Code:
101-bob_sinclar_feat_sean_paul-tik_tok_(radio_edit).mp3 --> bob_sinclar_feat_sean_paul-tik_tok_(radio_edit).mp3
10-Young Jeezy-Lose My Mind (78 Bpm) (Repack).mp3 --> young_jeezy-lose_my_mind.mp3
Now the problem is how can I remove the strings like:
101 & 10 (dynamic)
(%%% Bpm) (dynamic)
(Repack) (static)
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Jan 31, 2010
In bash, I would like to remove all zeros (if exist) from the beginning of a strings:
000001234
00123
0000568
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Nov 16, 2010
I have multiple strings (eg. say two, firstLIST=(0 1 2) and secondLIST=(2 3)) and want to create a single string composed of their unique sorted elements. For the sample strings above, I'd like to build masterLIST=(0 1 2 3).I suppose I could write the elements of firstLIST and secondLIST to files
Code:
echo ${firstLIST[@]} > firstFILE
echo ${secondLIST[@]} > secondFILE
then use
Code:
sort firstFILE secondFILE | uniq > masterFILE
as this gives me a file populated with the elements I'm after, but I'm not sure how to read the elements back into masterLIST... and it doesn't seem "right" to create files to accomplish this. Is there a way to do this by manipulating the strings ${firstLIST[@]} and ${secondLIST[@]} directly? The closest I've come (not close at all) is
Code:
masterLIST=${firstLIST[@]}" "${secondLIST[@]}
but masterLIST built this way has only one element
Code:
$echo ${masterLIST[@]}
0 1 2 2 3
$echo ${#masterLIST[@]}
1
and I don't have access to the individual digits to then try to figure out how to remove duplicates.
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Mar 13, 2011
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
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May 16, 2011
i have a problem in finding block of identical strings...i solved the problem in finding consecutive identical words and now i want to expand the code in order to find and remove consecutive identical block of strings... for example the awk code removing consecutive identical word is:
Code:
#!/usr/bin/awk -f
BEGIN{
RS="[[:space:]]+";
ORS=""
[Code].....
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Dec 9, 2010
I'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)' {} ;
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Mar 21, 2010
I have a file with no regular way to grep or sed for any regular expression. The wordings, fields, spacings are random. code...
I want to extract character positions 3 to 10 including spaces. code...
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Jul 29, 2010
what command is to be used to call strings from other files to the script and then comparing strings from two different files in the script to check if strings are matched then return the result to another script.
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Nov 2, 2010
I'm studying about signal in Linux Kernel and I got a problem about signal handler and output buffer.
I just want to know about stdout buffer related parent process and child process.
The problem is - parent process received SIGINT signal_handler that I implement is called. And after signal_handler is called, it print string "pid : xxx state : RUNNING" ... but after end of signal_handler function, child process might be print string but it isn't print at all.
I'm not asking right code, but I want to know why is this happened and concepts about signal handler, buffer - between parent process and child process.
here is a code signal_handler:
Quote:
void TC3_handler()
{
pid_t pid;
ProcState ps;
pid = GetProcessId();
[Code]....
chlid process counts number in infinite loop, but after call signal_handler, it can't print at all.. just waiting for SIGINT..
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Jan 15, 2010
may be an advanced question but I need to know how to do this. Here at work I am in charge of recruiting and we have about 1,000 resumes in already. All of the resumes are in a .pdf format. I need to rename every .pdf in the following format:{firstnameLastname}.pdfThe only way I know how to do this is to convert all the .pdf files to text, extract the name out of the first few lines of text, import into excel, and then use VBA to rename the files in mass:Here is my logic so far:~Deskop/a = houses all the .pdfresumesOpen terminal: Code: cd ~/Desktop/afor f in *.pdf; do pdftotext -raw $f; done That will convert all of the preceding resumes into text filesNow I would like to append the name of the text file into the last line of the text file. So, for example, for Resume1.txt, I want to append "Resume1.txt" to the last line within Resume1.txt. So after I run the command I open Resume1.txt and on the last line within I want to see "Resume1.txt" on the last line, at the end of the resume.How can I do this? I would like to use a loop and have the terminal append the filename to the body of the text file until all of the have been appended.
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Jul 17, 2009
I was trying to install GTK+-2.8.20, so I installed it's necessary dependencies in this order:
pkg-config-0.23
glib-2.20.4
pango-1.24.4
jpeg library
tiff library
cairo
And I was about to install the last dependency: ATK (Accessability Toolkit).I opened the Archive Manager to extract the "atk-1.26.0.tar.gz" file (yes, I'm still switching from Windows so I'm fond of GUI), but I noticed all the text in that window was boxes, like the □ type box for every letter of text.So instead I thought it wouldn't be a big deal, because the terminal and regular windows weren't screwed up.I opened a text file in gedit (reference to commands in terminal, such as how to extract files via terminal), but yet again all of the text was □-like boxes.
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Apr 21, 2010
Currently, when I'm searching text in files of my PHP project, I use this line :
Code:
grep -r 'myTextToFind' *
But now, I would like to search only in ".lang" files. How can I do that ?
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