I'm trying to make a program to search for each blank line in a text archive, where blocks are separated by this blank lines. I want to write the number of the line in a new file "numblank.txt" I have this, but I think I have a problem with the "blank line" simbol.
awk '{if ($1 == /^$/) print NR }' $file1 >! numblank.tmp
where file1 is given as:
text
text
text
[code]...
I have 8 files, and each contains around 2000 lines. I want to search the particular word in these files between line number 1500 to 2500.
The output should look like:
sample_1.txt :
1510:declare var testing
sample_2.txt :
1610:declare var testing
sample_7.txt :
1610:declare var testing
sample_10.txt :
1710:declare var testing
Is it possible to use grep for this task?
I am currently using a command like this to remove blank lines and lines which contain (not necessarily begin) with a #. Is there a better/simpler command?
cat /etc/apache2/default-server.conf | sed /^$/d | grep -v '#'
How to search multiple words in multiple lines, inside a directory including sub-directory? Pls. give easy example. I want to search the files (in /xx folder and all subfolders) that have header.h included and used x() function. I tried $grep -r "header.h" | grep -r "x(" /Folder/subfolder/ > search.log
View 7 Replies View RelatedI have such a file(test.txt):
abc 123 456
abc 256 145
axd 125 225
[code]...
I am trying to construct a quick regex that will search for six lines of text without a clear line break between them. It only needs to search, not replace, as I will be using in gEdit (with regex plugin) anyway.
It's for editing subtitle files. The video player I will be using them on can only cope with 3-line subtitles, so I just need to edit any in the srt file that contain four or more. There won't be many so I can do it manually. For example:
26
00:01:47,357 --> 00:01:49,359
a motivated business
professional with
clearly defined goals.
[Code].....
but .* seems to mean "any character, or none", so that doesn't work. My experience of regular expressions is limited, but I do know they are very powerful when used correctly!
there is a way to add line spaces when asking for user interaction in a script. For example:
Code:
SPACE
Hello what is your name?
SPACE
SPACE
So this is asking a question but has a space/empty line at the top of the screen and 2 spaces/empty lines below. I've seen it done in a bash script using for each line/space needed
Code:
echo ""
So what does perl use?
I am trying to delete any blank lines within two patterns e.g.
Address: 53 HIGH STREET Cred Id :
MYTOWN
MYCOUNTY
MM12 6MM
Pay Method : Crossed Cheque
The start of my pattern is "Cred Id" and the end is "Pay Method" and I want to delete the blank lines between county and post code. I did find the code below but it doesn't seem to change anything:
sed -ne '/Cred Id/,/Pay Method/!bp' -e '/^$/b' -e -e p ll.out
I can get it to print just the range I'm interested in by doing sed -ne '/Cred Id/,/Pay Method/p'.
I have a file with three consecutive blank lines. I want to delete two and keep one.Also, if anyone could direct me towards a guide on regular expressions particularly as they apply to sed, I would be grateful. I am having a hell of a time figuring out the syntax.
View 8 Replies View RelatedThis 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.
What are they? Before they were not required to set up an internet connection(wired, I'm giving up on wireless for the moment) and now they are. I asked the lady at my isp and she didn't know. What should I enter in the blank for search domains?
View 1 Replies View RelatedAll I want is a command that reads one data file with several columns and prints it in another one.However, whenever the value in one specific column alters, it prints one empty line in the new file. For example, consider the file
2.54000000 2.54000000
2.54000000 2.54000000
2.54000000 2.54000000
2.54000000 2.56000000
[code]....
i have a file like this
# comments
#comments
#comments
bla bla
[code]....
i want to grep lines which do not start with # or a blank space. like
bla bla
bla bla
how do i do this? i tried grep --invert-match '^#' which gives lines not starting with # but gives me blank lines too i tried grep --invert-match '^#|^ ' which will give lines not starting with # OR not starting with blank ( which means any line including ones starting with #
I have an old-address-list file which is having around 1500 entries. I need to convert this addresses in to a specific format.
The old-address-list file>
# cat old-address-list-file
dn: CN=Muhammad Hadhi K.M,OU=IT Dept,OU=Example Company H.O,DC=example,DC=com
cn: Muhammad Hadhi K.M
[code]....
I have a pdf file (nasm documentation) that used to be displayed perfectly with xpdf, but now all code example lines remain blank. On the terminal I get repeated lines such as:
Quote:
Error: Couldn't create a font for 'Courier Bold'
Error: Couldn't create a font for 'Courier'
I tried to figure out the problem... the same problem occurs with both evince and okular. However it does not occur when opening the same file under root (tested with xpdf), so it seems to be some permission problem. I tried searching on the error message but couldn't find a working solution.
I've come across an unusual requirement for a service in my Ubuntu system.Simply put, I need to find a way to search for all instances of a term in a file, delete lines containing containing that term, and delete four lines below each instance of that term. ither that, or copy the entirety of a file to a new file and skip over all lines containing the term plus four below it.This sounds kinda weird, I know. Without going too far into detail, I either have to change the logfile format for a server I'm running which is a huge pain in the butt, or I can just run a script to edit an HTML report generated from said logs. (Said report is really just for managers to peruse, and I like my log format, so I'm pursuing option 2.)
View 4 Replies View RelatedI have been experiencing a problem where the screen loads and after initial first few lines breaks up into multiple repetitions of lines. Reloading helps but has to be repeated when pageing down. Mail is no problem; it is supplied by my network provider. OS is openSUSE 11.2 which I update when advised. Below is a sample from the error console:
[Code]...
I've just installed Kubuntu 11.04, switched on wobbly windows effect. It runs very smooth on my Nvidia GeForce 7600 GS with dual screen twinview turned on. However, I get these lines when I drag/move the window upwards - see screenshot:
View 6 Replies View RelatedHow do you remove parts of strings using python? Such as, if I have something like:
Code:
erme1 sdifskenklsd
erme2 sdfjksliel
[code]....
I have this massive table file with some data in it and I want to replace some lines that are wrong with the correct ones that are in another table file of the same format. The wrong lines are not all together in a block but randomly distributed so I need to make a loop checking if the line is in the other file and if it is, replace it. I want to try and do it with sed or awk but I don't really know how to....
View 12 Replies View Relatedi guess this is an installation issue as i am newish to Linux and got a F14 laptop from a used/refurb store... Anyway it seem i have difficulty with getting GTK running or maybe it is WGET...?
i did manage to install apt-get and was able to run synaptics ... but now whenever i try to run synaptics it flashes the interface and crashes. i tried apt-get search wget and it says invalid operation search. i tried apt cache wget and get a crash box in the upper right corner... i tried apt-get gtk+extra-2.1.2-4.fc14 and it says invalid operation gtk...
All of which is frustrating my attempts to get the GTK interface to J working. Their script uses WGET which i also cannot get.
The desktop search has stopped working in Gnome.I get a message that says 'Search Service not running' with a button that says 'Start Search Service'.When I click the button nothing happens
View 1 Replies View RelatedI'm trying to find a good desktop search tool. Beagle is dead, Recoll and Strigi are KDE, and Tracker is not many features (can't even search Thunderbird 3). Do I miss something? Is desktop search on Linux dead? Should I use Google Desktop Search instead
View 2 Replies View RelatedI have a file with n number of lines where every 2 lines are grouped.
So I want to print the items in a line and the next line in a single line.
For example:
I can print the line and the adjacent together and print the required items like this:
But that's not the order I want. How can I get it printed like below:
when I run the following command:
awk -F, '{print $10 "," $5 "," $1 "," $3 "," $4 "}' myfile > tmpfile
tmpfile displays the lines but they are all cut off and placed on the line below at the same point.
I've a big text, and I would like to delete several lines in vim. I was thinking in doing that with marks, but I can't do it. Below it's an example text and I want to delete from <FROM HERE> to <TO HERE>. How can I do that?
[Quote] .....
I am trying to search for
Code:
<cats>
Sports
</cats>
how do i use the find command to search for <cats>Sports The problem here is that the word Sports is in the next line of <cats> so I cant use -
Code:
find /test/upload/ -type f -name "*.xml" -exec grep -l "<cats>Sports" {} ; -print
How do I put the next line string?
I have a file with a random word on each line (3k+ lines). How can I get the lines with only five characters? I tried using grep file | more, but it returns all the words (even those less than 5 characters).
Edit: I also tried grep '.{5}' file | more but it doesn't show anything. And grep '.{5}' file | more returns all lines with four or more characters (I'm really confused about why it's doing this).
I have a large file and need to remove all the lines containing symbol/symbols.
For example: . , ! " # $ % & / ( ) = ? � � ' � + * � { } ] [ - _ : ; , > < (maybe more)
I have a file that looks like this:
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24
1
2 3 4 5 6 7 8 9
10 11 12 13 14 15
16 17 18 19 20 21
22 23 24
...
I would like to reformat it to look like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
...
Is there a nifty awk/sed one-liner to do this operation?