03-15-2008
copy lines from opne file to another
Hi all,
I'm new to shell scripting.
I want to copy the first N lines from a file to another file.
Can someone please tell me how this can be done.
Thanks
Himi
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all,
I'm new to shell scripting.
I want to copy initial few lines(say first 10 lines) from a file to another file.
There is no "head" command in our embedded system.
sed & awk is there which I believe will do that, but I dont know how to.
This is linux 2.6 (embedded)
So please help me.... (5 Replies)
Discussion started by: jockey007
5 Replies
2. Shell Programming and Scripting
Hi,
I have a abc.txt file.
In this file there is a SQL query which Iwant to copy and print it on another file.The query (for eg) is written like this:
SELECT field1,
field2,
field3
from table1,table2
where <conditions>
END
I want to copy this query to another... (3 Replies)
Discussion started by: jisha
3 Replies
3. Shell Programming and Scripting
Hi All,
I have a file that gives me new line/output every 5 minutes. I need to create a script that capture new line/output besides "IN CRON_STATUS", in this case the new output is "begin ------ cron_status.sh - -----------".
I want this script to capture the line starting from "begin ------... (0 Replies)
Discussion started by: fara_aris
0 Replies
4. Shell Programming and Scripting
Hello everyone. I have a log file that contains multiple domains:
www.thisdomain.com
agent.thisdomain.com
that.thisdomain.com
I need to copy all of the lines that contain "www.thisdomain.com" from the log and output them into a new file. I've tried everything with little luck. Please help... (3 Replies)
Discussion started by: aberli
3 Replies
5. UNIX for Dummies Questions & Answers
Dear All,
I am working with windoes OS but remote a linux machine. I wonder the way to copy an paste some part of a huge file in linux machine.
the contain of file like as follow:
...
dump annealling all custom 10 anneal_*.dat id type x y z q
timestep 0.02
run 200000
Memory... (2 Replies)
Discussion started by: ariesto
2 Replies
6. Shell Programming and Scripting
Hello,
I have a text file which I need to check for presence of certain tags, and then copy a subsequent portion of text into another file. The tag matching canbe done with Grep but I do not know how to copy selective lines from one file to another. Is it possible do that?
I checked up some... (8 Replies)
Discussion started by: ajayram
8 Replies
7. Shell Programming and Scripting
Hi Guys,
I have the following problem. I have original file (org.txt) that looks like this
module v_1(.....)
//arbitrary number of text lines
endmodule
module v_2(....)
//arbitrary number of text lines
endmodule
module v_3(...)
//arbitrary number of text lines
endmodule
module... (6 Replies)
Discussion started by: kaaliakahn
6 Replies
8. Shell Programming and Scripting
Hi Guys,
I have an awk script that would search the input file for line that starts with a number 3 and copies into a new text file.
I want to extend this script to find the lines that either starts with 3 or a or b and copy all those lines into the new file.
Here is what I have so far:... (1 Reply)
Discussion started by: Amith821
1 Replies
9. UNIX for Beginners Questions & Answers
Dear all,
I have stuck with this problem for some days.
I have a very big file, this file can not open by vi command.
There are 200 loops in this file, in each loop will have one line like this:
GWA quasiparticle energy with Z factor (eV)
And I need 98 lines next after this line.
Is... (6 Replies)
Discussion started by: phamnu
6 Replies
10. Shell Programming and Scripting
OS : RHEL 7.2
Shell : bash
I have a file which has lines like below
I want to copy from 2nd line to the 6th line and copy(redirect) those lines to another file.
$ cat patterns.txt
hello world
hello asia
hello europe
hello africa
hello america
hello antartica
hello... (9 Replies)
Discussion started by: omega3
9 Replies
uniq(1) General Commands Manual uniq(1)
Name
uniq - report repeated lines in a file
Syntax
uniq [-udc[+n][-n]] [input[output]]
Description
The command reads the input file comparing adjacent lines. In the normal case, the second and succeeding copies of repeated lines are
removed; the remainder is written on the output file. Note that repeated lines must be adjacent in order to be found. For further infor-
mation, see
Options
The n arguments specify skipping an initial portion of each line in the comparison:
-n Skips specified number of fields. A field is defined as a string of non-space, non-tab characters separated by tabs and spaces from its
neighbors.
+n Skips specified number of characters in addition to fields. Fields are skipped before characters.
-c Displays number of repetitions, if any, for each line.
-d Displays only lines that were repeated.
-u Displays only unique (nonrepeated) lines.
If the -u flag is used, just the lines that are not repeated in the original file are output. The -d option specifies that one copy of
just the repeated lines is to be written. The normal mode output is the union of the -u and -d mode outputs.
The -c option supersedes -u and -d and generates an output report in default style but with each line preceded by a count of the number of
times it occurred.
See Also
comm(1), sort(1)
uniq(1)