Get Nth record from last line Post: 302315862

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Using sed to extract Nth record?

I have a comma-separated record and I'd like to use sed to pull the Nth record from it. It seems like it'd need to be something like this: sed -n 's/'"\,$1\,"'/&/p' Am I close?

2. UNIX for Dummies Questions & Answers

Print first, second, every nth, and last record

does anyone have an awk one-liner to: print the first line, the second line, then every Nth line, and the last line of a file. Thanks, Kenny.

3. Shell Programming and Scripting

Reject the record if the record in the next line does not satisfy the pattern

Hi, I have a input file with the following entries: 1one 2two 3three 1four 2five 3six 1seven 1eight 1nine 2ten The output should be 1one 2two 3three 1four 2five 3six

4. Shell Programming and Scripting

Reject the record if the record in the next line does not begin with 2.

Hi, I have a input file with the following entries: 1one 2two 3three 1four 2five 3six 1seven 1eight 1nine 2ten 2eleven 2twelve 1thirteen 2fourteen The output should be:

5. Shell Programming and Scripting

How to start reading from the nth line till the last line of a file.

Hi, For my reuirement, I have to read a file from the 2nd line till the last line<EOF>. Say, I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines. for i in `cat test.txt` { echo $i } While doing the above loop, I have read...

6. UNIX for Dummies Questions & Answers

how to delete nth line

can you please tell me (1) how to delete 1st and 3rd line only from a file. (2) How to delete last 4 lines in a file that has 2 blank lines out of last 4 lines. Thank you.

7. Shell Programming and Scripting

Calculating average for every Nth line in the Nth column

Is there an awk script that can easily perform the following operation? I have a data file that is in the format of 1944-12,5.6 1945-01,9.8 1945-02,6.7 1945-03,9.3 1945-04,5.9 1945-05,0.7 1945-06,0.0 1945-07,0.0 1945-08,0.0 1945-09,0.0 1945-10,0.2 1945-11,10.5 1945-12,22.3...

8. UNIX for Dummies Questions & Answers

Give name for every nth line

Hi all, Greetings. I am facing some troubles and hope that the professionals here could help me. I am handling a large dataset, and part of it is like below: 1 ab139 0 752566 G A 1 ab151 0 846808 T C 1 ab142 0 854250 G A 1 ab061 0 861808 A G 1 ab043 0 873558 T G...

9. UNIX for Beginners Questions & Answers

Insert a line of text on nth line of a file

Hi All, I am using UNix Sun OS sun4u sparc SUNW,SPARC-Enterprise My intention is to insert a line of text after 13th line of every file inside a particular directory. While trying to do it for a single file , i am using sed sed '3 i this is the 4th line' filename sed: command garbled: 3...

10. Shell Programming and Scripting

Printing string from last field of the nth line of file to start (or end) of each line (awk I think)

My file (the output of an experiment) starts off looking like this, _____________________________________________________________ Subjects incorporated to date: 001 Data file started on machine PKSHS260-05CP ********************************************************************** Subject 1,...

LEARN ABOUT OPENSOLARIS

fmlgrep

fmlgrep(1F)							   FMLI Commands						       fmlgrep(1F)

NAME

       fmlgrep - search a file for a pattern

SYNOPSIS

       fmlgrep [-b] [-c] [-i] [-l] [-n] [-s] [-v]
	    limited_regular_expression [filename]...

DESCRIPTION

       fmlgrep	searches  filename for a pattern and prints all lines that contain that pattern. fmlgrep uses limited regular expressions (expres-
       sions that have string values that use a subset of the possible alphanumeric and special characters) like those described on the  regexp(5)
       manual page to match the patterns. It uses a compact non-deterministic algorithm.

       Be careful when using  FMLI special characters (for instance, $, `, ', ") in limited_regular_expression. It is safest to enclose the entire
       limited_regular_expression in single quotes ' ... '.

       If filename is not specified, fmlgrep assumes standard input. Normally, each line matched is copied to standard output. The  file  name	is
       printed before each line matched if there is more than one input file.

OPTIONS

       The following options are supported:

       -b    Precede  each line by the block number on which it was found. This can be useful in locating block numbers by context (first block is
	     0).

       -c    Print only a count of the lines that contain the pattern.

       -i    Ignore upper/lower case distinction during comparisons.

       -l    Print only the names of files with matching lines, separated by new-lines. Does not repeat the names of files  when  the  pattern	is
	     found more than once.

       -n    Precede each line by its line number in the file (first line is 1).

       -s    Suppress error messages about nonexistent or unreadable files.

       -v    Print all lines except those that contain the pattern.

EXIT STATUS

       The following exit values are returned:

       0    if the pattern is found (that is, TRUE)

       1    if the pattern is not found (that is, FALSE)

       2    if an invalid expression was used or filename is inaccessible

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       egrep(1), fgrep(1), fmlcut(1F), grep(1), attributes(5), regexp(5)

NOTES

       Lines are limited to  BUFSIZ characters; longer lines are truncated. BUFSIZ is defined in /usr/include/stdio.h.

       If there is a line with embedded nulls, fmlgrep will only match up to the first null; if it matches, it will print the entire line.

SunOS 5.11							    28 Mar 1995 						       fmlgrep(1F)