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Shell Programming and Scripting
How to delete line number 3,6,9,12,15 and so on?
Post 302892209 by ahamed101 on Tuesday 11th of March 2014 01:18:39 PM
03-11-2014
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1. UNIX for Advanced & Expert Users
Hai
I have a flat file which contains more than 6 crore lines or records. I want to delete only one line, using line number. For example I want to delete 414556 th line . How to do this using sed or awk command.
thanks (3 Replies)
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2. UNIX for Dummies Questions & Answers
I have been googling, but cannot find that works for me.
I have a text file tmp.out with contents:
sadfsdf sdfosuidhfousdhof soduhf osdfu osudfhosudhfd
sdfgsdfg
asdfiojhsdf asdoludhflsdjfhskldjfhsdjdlfsjdhnlj h sdja
ouahsdjdafkljsa
oljhljh
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Alright, I'm sure there's a more efficient way to do this... I'm not an expert by any means. What I'm trying to do is search a file for lines that match the two input words (first name, last name) in order to remove that line. The removal part is what I'm struggling with. Here is my code:
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4. Shell Programming and Scripting
Hi guys ,
I m writing a script to delete a line at particular location.
But i m unable to use variable for specifying line number.
for example.
sed -n '7!p' filename
works fine and deletes 7th line from my file
but
sed -n '$variable!p' filename
gives following error.
sed: -e... (12 Replies)
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5. Shell Programming and Scripting
I have file with 10000 records and i need to delete the lines in single shot based on line number range say from 10 to 51 , 53 to 59 , 105 to 107, 311 to 592 etc... between range works fine for me but how to achive for above case? please help
sed '10,51 {d}' infile > outfile (5 Replies)
Discussion started by: zooby
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6. Shell Programming and Scripting
I have a file with ~200K lines, I need to delete 4K lines in it. There is no range.
I do have the line numbers of the lines which I want to be deleted.
I did tried using
> cat del.lines
sed '510d;12d;219d;......;3999d' file
> source del.lines
Word too long.
I even tried... (2 Replies)
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7. Shell Programming and Scripting
Hi guys,
is there a way to delete a line from a text file by providing a line number for the line I want to remove?
I work in ksh88...
Thanks a lot (3 Replies)
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8. Shell Programming and Scripting
Hi
I am using the following command to delete a line from the file by line number:
line_number=14
sed "${line_number}d" inputfilename > newfilename
Is there a way to modify this command to specify the range of lines to be deleted, lets say from line 14 till line 5 ?
I tried using the... (5 Replies)
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9. UNIX for Dummies Questions & Answers
Hi,
I have written a script that returns the line number of the pattern i want and i stored the line number in a variable(getlinenumber).Now i want to delete all the lines in a file above this line number which is stored in a variable.
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10. Shell Programming and Scripting
Dear Specialists,
I have following data
1 1 2
2 2 3
3 3 6
4 3 4
5 4 9
6 5 11
7 6 7
and I would like to obtain data like below
1 1 2
2 2 3
4 3 4
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Discussion started by: Ryan Kim
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LEARN ABOUT SUSE
protocols
PROTOCOLS(5) Linux Programmer's Manual PROTOCOLS(5) NAME
protocols - the protocols definition file DESCRIPTION
This file is a plain ASCII file, describing the various DARPA internet protocols that are available from the TCP/IP subsystem. It should be consulted instead of using the numbers in the ARPA include files, or, even worse, just guessing them. These numbers will occur in the protocol field of any IP header. Keep this file untouched since changes would result in incorrect IP packages. Protocol numbers and names are specified by the IANA (Inter- net Assigned Numbers Authority). Each line is of the following format: protocol number aliases ... where the fields are delimited by spaces or tabs. Empty lines are ignored. If a line contains a hash mark (#), the hash mark and the part of the line following it are ignored. The field descriptions are: protocol the native name for the protocol. For example ip, tcp, or udp. number the official number for this protocol as it will appear within the IP header. aliases optional aliases for the protocol. This file might be distributed over a network using a network-wide naming service like Yellow Pages/NIS or BIND/Hesiod. FILES
/etc/protocols The protocols definition file. SEE ALSO
getprotoent(3) http://www.iana.org/assignments/protocol-numbers COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2008-09-23 PROTOCOLS(5)