General :: View File Ignoring Set Of Lines?
Jun 21, 2010I'm having a file with repeated particular text lines. So I need to view the file content ignoring these lines. Is there anyway I can achieve this using VI
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General :: View A Particular Ten Lines In A Large File Where Can't Open The File In Vi
May 12, 2010I am using RHEL 5.I have a very large test file which cannot be opened in vi.The content of the file has some 8000 lines.I need to view ten lines between 5680 to 5690.How can i view these particular lines in a large file.what is command and option i need to use.
View 1 Replies View RelatedGeneral :: Replace Several Lines In A File With Other Lines In Another File?
Oct 26, 2009I 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 RelatedGeneral :: Copy File Recursively Ignoring Destination Directory Structure?
Jul 8, 2011I have the following content on the source directory:
source/foo.txt
source/bar/another_file.txt
source/bar2/and_another.txt
I want copy those files to a destination directory which, after copy, shall look like this:
destination/foo.txt
destination/another_file.txt
destination/and_another.txt
How can I do this? It seems that "cp" lacks such an option
General :: Script To Insert Number Of Lines In A File To The Start Of The File?
Sep 17, 2009I'm looking for a way to insert the number of lines in a file to the start of the aformentioned file. This should be simple but as I am not used to scripts in Linux, I am finding it tough going. I can find the number of lines in a file easily enough via
filesize=$(awk 'END {print NR}' $1)
but as for inserting this into the first line, i'm failing to do so. I've tried some of the other approaches on these forums but none so far have been able to do so.
I've tried:
sed '1i$filesize' $1
but sed i requires a string, not a variable so no go I've also tried:
mv "$1" "${1}.bak" 2>/dev/null || touch "${1}.bak"
cat $filesize "${1}.bak" >"$1"
but again with no luck as cat seems to need an input stream Just to recap, i want to insert a line at the start of a given file that holds the number of lines the original file has.
ie the file:
a
b
c
d
e
should become:
5
a
b
c
[code].....
General :: File Privileges - Check And Set Who Can View Or Open A Given Folder Or File?
Jul 30, 2010How can I check and set who can view or open a given folder or file?
View 1 Replies View RelatedGeneral :: Removing Lines From A File That Are In Another File?
Jan 6, 2011I have a large text file containing over 180k lines and another text file containing about 1k. I would like to remove lines in the 180k-line file that exist in the 1k-line file.
View 5 Replies View RelatedGeneral :: Add Characters To Several Lines In A File?
Apr 17, 2009I would like to modify the content of a text file in Linux, in the following way:=> the file has several of these lines:./run_pest3 ./g134366.04080_0.062 x 2_d043 1 0.43 results_EC=> I want to modify all lines to be:./run_pest3 ./g134366.04080_0.062 x 2_d043 1 0.43 results_EC0.062i.e., the last number of $2 should be "attached" to the end of $7, for each line.
View 5 Replies View RelatedGeneral :: Extract Lines From File Using AWK ?
Aug 5, 2010I have a file similar to this:
I need to print the last line for each user into a file. The resulting file should look like this:
Is there a way that AWK can match lines from $1 and then print the last line into a file?
General :: Adding Lines Of A File Together?
Feb 22, 2010I'm trying to output two certain fields of a very large text file to 2 very small text files. Then take those files and add all the lines together to come up with a total from each file (two totals).
Here's what I've got:
Code:
#!/bin/bash
echo "0" > /media/in.txt
echo "0" > /media/out.txt
[code]....
Breakdown: Put 0 in a text file to be drawn by respective while loops for math later
Output last 60 integers to a file for total A (new integer every minute)
Output last 60 integers to a file for total B (new integer every minute)
The two while loops are supposed to be adding the lines together. The echo commands at the end are for testing purposes, just to see the output. However, when I run this, I get the output of
Code:
0 0
Which is obviously not what it's supposed to be. Is there a more efficient way to do this or am I missing something in the script that would reset the values to "0"?
General :: Delete Last 6 Lines Of File With Sed
Jun 5, 2011looking to delete the last 6 lines of a file with sed. figured out how to delete the last line..but i want the last six.
View 6 Replies View RelatedGeneral :: Add A Line In A File Before The Last Two Lines?
Aug 2, 2010I need to add a line in a file before the last two lines using a script using standard linux editors like sed but i can't figure it out.
View 2 Replies View RelatedProgramming :: Reading A Binary File (Ignoring Null Terminator)
Jan 12, 2011I need to read a binary file using my C++ application. That binary file may contain arbitary characters and it also contains 0 at some places. I need to read the file without considering null terminating character. (i.e. considering 0 as a normal byte and not as the end of the string)Can some one suggest me a method to read the buffer while ignoring the null terminated character.
View 4 Replies View RelatedGeneral :: View Chm File In Red Hat?
Jan 27, 2010i have a doubt regarding chm file.how to view chm file in redhat linux EL5
View 4 Replies View RelatedGeneral :: Conditionally Deleting Lines From File
Mar 10, 2011I am facing some problem regarding deletion of a line from a text file. The file consists of the lines of type which consists of more than 6 occurrences of : character in it. The line should be deleted completely and the line next to it must be shifted up.
View 1 Replies View RelatedGeneral :: Copy Some Lines In A File And Delete These After?
Jul 20, 2010I have a file that contains 100 ligns, i need to write a script that read 70 lignes and redirect those 70 ligns to another files and these 70ligns have to be erased in the first file
when i write this command
head -70 somefile.txt>test.txt
or
sed -n 70p somefile.txt>test.txt
i have these 70 lines in the text.txt files
but these 70 lines have to be deleted inthe first file somefile.txt
General :: Split A File Into Two - The First Being The First Two Lines And The Second The Rest?
Nov 1, 2010I'd like to split a file into two, where the first file is the first two lines and the second is the remaining lines (third line to EOF).
View 2 Replies View RelatedGeneral :: Delete Lines From File By Their's Length
Apr 27, 2010i've got a file with sorted words - one on each line.How could it be possible to delete thouse lines that have words of length 1 or 2 (1-2 letters). I guess a good way it will be with AWK, n its fuction length(), but getting it, i dont know how to delete those very lines.
View 14 Replies View RelatedGeneral :: Grep And Store Two Lines In Other File
Feb 16, 2011I have following contents
I want to grep "#2" and want the output as
How to using shell script?
General :: Remove All Lines In A File Containing Sameword?
Aug 6, 2010When i want to remove particular lines containing a specific word in from entire document at a time,i am using the following command.
awk '$columnno !~/specificword/' inputfile > outputfile
But here, coulmn no is my problem, because iam having this in different columns. So i need a solution for it.
How to write such removal command without mentioning column no. , ie irrespective of column no, it has to remove all lines having that specific word.
General :: Use AWK To Print Out First Few Lines Of A Text File?
Jul 27, 2011I have a few rather large text files, and I need a way to look at the first three lines of each. Is there a way to do this using awk?
View 3 Replies View RelatedUbuntu :: Get Wget To Download Files From A Server Ignoring Some From A Text File?
Jun 29, 2010I use the
Code:
wget -r -A <extension> <site>
command to download all files from a certain site. this time i already have some of the files already downloaded and listed in a text file via
Code:
ls > <text file name>
How can i make wget to download from the site i want but ignore the filenames listed in the text file?
General :: How To View Chm File In Redhat
Jan 28, 2010i have a doubt regarding chm file.how to view chm file in redhat linux EL5
View 2 Replies View RelatedGeneral :: How To View Image File
Jul 16, 2010I am working on a linux cluster based on Scientific Linux 5. I have some images in .bmp format. How can i view them from the command line or without downloading to desktop? At present I am connecting from Win7 using Exceed.
View 4 Replies View RelatedGeneral :: Only Execute The Rwx And View The File?
Aug 27, 2009For example, I write the file like in vi or something. I wanna execute but no one read , write and execute but one more thing no one to view the file like encrypt the file.
View 5 Replies View RelatedGeneral :: View A File With Its Inode Nno?
Nov 2, 2010how can we view a file with its inode nno . eg. cat 12456 where 12345 is the inode of a file
View 3 Replies View RelatedGeneral :: Grep Multiple Lines From A Text File
Jun 17, 2009I have a list of words that I want to grep in many files to see which ones have it and which ones dont. in the text file I have all the words listed line by line, ex: list.txt:
check
try this
word1
word2
open space
list ..
I want to grep each line one by one. like I want it to
grep "check" *.log
grep "try this" *.log
grep "word1" *.log .. etc how can I do this?
and maybe write the output to a file.
General :: Command To Swap Even And Odd Numbered Lines In A File
May 28, 2010I'm looking for a command to swap the even/odd numbered lines in a file. Example input file:
Code:
1
2
3
4
[code]...
Example output file:
Code:
2
1
4
3
[code]....
I'm sure there's a way to do it with sed, awk, grep and the like but it's been many years since I've used these commands on a daily basis and I can't seem to figure out the correct syntax.
General :: Commands To Remove Particular Few Lines In History File?
Jun 16, 2010Is there any commands or scripts to remove only selected line in the history file.
View 1 Replies View RelatedGeneral :: Delete All Lines In A File Which Consists Of Particular String?
Mar 21, 2011i am having following lines in a file called test.
subscribe parser for dinesh
extend size for dinesh
subscribe parser for anish
unsubscribe parser for dinesh
extend size for arvind
I want to delete all lines which contains the string "dinesh". Is it possible.