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?
View 3 RepliesI want to be able to check the contents of a text file for a specific string and remove it from the file from the command prompt. I would basically be searching through a number of files and if a specific string is found I would like it removed automatically. pretty much a find and replace, were the replace is nothing. any one got any ideas on how you would do this. I already have the search part sorted just need to be able to remove the string I don't want from the multiple files.
View 4 Replies View RelatedI would like to know how I can replace a string in one file with the complete contents of another life.
View 10 Replies View RelatedI have a line in a text file that has 40 random characters within a tag and i want to change the characters to a new set of 40 random characters (alphanumeric a-z 0-9 etc)
The line in the text file looks like this:
Quote:
How would i go about doing that?
Also second question same as the above but how would i remove them instead of replacing them?
If I have a word in a text file and I need to replace it by another word (for example, i need to replace abc by fff) so what is the command I can type it?
I am using vi editor.
Suppose I have a pair of files containing lists. The first file is called contigs.txt and it contains a list that looks like this:
Code:
Contig822
Contig826
[code]...
Assume I have a text file as belowabcdaaaaaaagfgkhahahahahahhahhgfThen gf would be returned
View 4 Replies View RelatedI have a file called Regions.ini that looks like this:
Code:
[Granite]
RegionUUID = 54ab7cd2-0e70-49b7-8020-8dbeb84c08d0
Location = 9991,10007
InternalAddress = 0.0.0.0
InternalPort = 9001
AllowAlternatePorts = False
ExternalHostName = 71.171.21.9
[Syenite]
RegionUUID = 8fc56fdd-0afd-4074-9432-0ae8f42b799f
Location = 9992,10007
InternalAddress = 0.0.0.0
InternalPort = 9000
AllowAlternatePorts = False
ExternalHostName = 71.171.21.9
What I need to do is find out what the IP address is after "ExternalHostName ="
After that I will need to compare that IP to whatismyip and if it's different then replace it but that is easy to do with sed. I just can't figure this simple hurdle out.
I have large text files with space delimited strings (2-5). The strings can contain "'" or "-". I'd like to replace say the second space with a pipe. What's the best way to go?
Using sed I was thinking of this:
sed -r 's/(^[a-z'-]+ [a-z'-]+) /1|/' filename.txt
I need to search a text file for a string of numbers which are different lengths, and always are between number=" and " like:
number="1234567890"
number="22390"
I need to grab those numbers and pipe each one to a line in a file. I've already tried something with awk and that didn't seem to work.
shell command to display contents of a file? Like that of .txt or .html
View 9 Replies View RelatedI want to show the contents of a file on Dialog box for which I have use the "--textbox" dialog and "--tailbox" dialog.
But it doesn't show the whole contents of file, it only shows some of the data.
How do I get it to show the entire file data?
Code:
cp -r aa123.h aa*.h
results in
Code:
cp: target `aa456.h' is not a directory
Yes I read man page cp (1p). There is something written there about it, I couldn't understand though.
I need to compare 2 files using diff. The problem I've encountered is that I need to exclude certain lines that contain certain phrases. I know that diff supports the -I switch but no matter how I try to form the regexp it doesn't seem to work the way I expect it to. If anyone has used the -I switch before could you please post some examples of how it is used.
diff -I "[skipthisline]" file1 file2 > output.diff
I need to exclude lines that contain the string "[skipthisline]" but I have no idea what syntax is used after the -I switch. Is is supposed to be included in quotes or slashes /[skipthisline]/ or entered without either? I need to include a backslash before each bracket so that it's not interpreted as a set of characters like [a-z] but is instead interpreted as a string. Do I need to use 2 backslashes? "\[skipthisline\]"
Is it sufficient to simply type the string I want to match or do I need to match the entire line in order to exclude it from the output?
.*[skipthisline].*
or
^.*[skipthisline].*$
1/ I haven't catch the difference between dwdiff, diff or dircomp If one wants to only output files (JPEG, doc, etc.), which have been created, absent or modified The command:
diff -r -q
works well, any advantage for another command? Subtilities between commands for issues like:
* identical content, but renamed files
* identical names & date & weight, but different content (virus)
2/ Is there a way to tell diff to store in a specific directory all missmatched files?
Something as
diff - r -q oldBackup actualData /media/sda1/discrepant
Where diff would store in media/sda1/discrepant all files which are new or modified after comparison between oldBackup and actualData
How to list the contents of a folder to a text file. I'm trying to list all my music, including all subfolders, etc. to a text file, but I can't remember the command.
View 3 Replies View RelatedHow can read the file /var/etc/allInOne.cfg and distribute its contents on multiple cfg files using C language. /var/etc/allInOne.cfg contain the data and the path of each text file.
The source file "/var/etc/allInOne.cfg "look like this:
line1
line2
...
line10
filePath:/var/etc/file1.cfg
line12
line13
...
line14
filePath:/var/etc/file2.cfg
linen
..
filePath:/var/etc/filen.cfg
the result will be :
The expected result is:
/var/etc/file1.cfg will contain line1 to line10
/var/etc/file2.cfg will contain line 12 to line13
/var/etc/filen.cfg will contain linen to linen-1
I need to be able to convert HTML email messages saved as text files (.eml or .msg) to PDF documents, one PDF per email, retaining formatting and images.
Are there any Linux tools that will allow me to do this from the command line (so it can be scripted)?
I have a text file which include code...
I mean, this string should be removed from each line and save in another file.
I have a program that writes to stdout. Is there a way that I can redirect the output to the linux diff command or do I have to write the output to a file and then compare that. For example I have a bunch of test input files for a program and the corresponding expected output in another set of files. And I'd like to do something like ./program < t1.input | diff t1.expected.
View 3 Replies View RelatedI want to know how can I add something to a specific line.. the output would be something like:
abc
def 123
ghi
Search for string "def" and add something to that line.
I am using C. I have a fuction that returns a string
Code:
I need to format this string so that I can create a text file like so:
So I'm trying:
Code:
But I get errors like:
im tryin to make a tool in visual C++ which will take an input string through a text box,then it will compare tht string with a text file containing data and display the matched results in list box.
View 2 Replies View Relatedwhen i compile a software ABySS, it reported that:
/usr/local/include/google/sparsehash/libc_allocator_with_realloc.h:66: warning: unused parameter 'n'
make[2]: *** [libalign_a-Aligner.o] Error 1
make[2]: Leaving directory `/var/data/abyss-1.2.0/Align'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/data/abyss-1.2.0'
make: *** [all] Error 2
someone said it because of a bug of google-sparsehash. and gave a patch "deallocate.diff ". my problem is how to use deallocate.diff to fix the bug.
I am having trouble writing a script that monitors a text file. When the file contains number 1 (or any other string that is not a command) it does nothing, but when it is something different from 1, it executes that command.
So, there are 2 files: monitor.mon - this is the file that will be checked constanlty; and test.sh - the script that does the job. The monitor.mon file will have its content modified by php. This means a web page will have a form where I input commands and writes does commands in the file. Test.sh will watch when the file's content changes from character 1 to a command, execute that command and write back a 1 so it will not execute it more times.
I tried combining while and if but with no success. Tried reading the file with cat and grep -e but it doesn't seem to recognize when content changes.
write such script (bash script). I have some text file with name filename.txt I must check if this file contains string "test-string-first", I must cut from this file string which follows string "keyword-string:" and till first white-space and save it to some variable.
For example. File: PHP Code: PHP Code:
Start 15022011 Eng 12-3-42
SN1232324422 11 test-string-first
SN322211 securities
HH keyword-string:123456321-net mark (11-22)
[Code].....
I have a String like "A.words=Ajay,Anil" in file A.And it contains a lot of other information also. I wanted to replace "Ajay,Anil" with "Vijay,Vinay" with sed command with using existing file only(not using another file)
View 9 Replies View RelatedWhat's the easiest way to search for a string in a text file in GNOME or on the console? I used to do this in kfindfile back on KDE.I'd like to avoid downloading something like desktop search if at all possible because I'm away for the holidays and stuck on a dialup connection.
View 5 Replies View RelatedI want to insert the text "DB dept" in the last line of passwd file which looks like this right now
Quote:
newuser:x:717:717::/home/sacharje:/bin/bash
And I want it to be like this:
Quote:
newuser:x:717:717: DB dept:/home/sacharje:/bin/bash
I tried to do that with sed but failed, I'd like to know the proper syntex with sed to achieve this.
I have an SQL dump, file.sql that has many references to a particular domain, d1.com. I would like to run a command that can replace every occurrence of d1.com with d2.com. I've tried looking into sed before but the man pages are quite daunting.
View 14 Replies View Related