Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: awk getline function help
Top Forums Shell Programming and Scripting awk getline function help Post 302895708 by Pratik4891 on Wednesday 2nd of April 2014 04:15:06 AM
Old 04-02-2014
awk getline function help
Hello All ,

I have to split a file as well as keep the header in all the splitted files.

For this I am using the getline function of awk to keep the header however the catch is header is of 4 lines and I have to hold all the 4 lines by getline function(or is there any other option ???) into a variable .

Below is the code

Code:
awk 'BEGIN{getline f;}NR%3==2{x="F"++i;a[i]=x;print f>x;}{print > x}END{for(j=1;j<i;j++)print> a[j];}'

Currently the getline function is only holding the first line of header file and I want it to hold all the 4 lines

Below is the sample input

Code:
HEADER
HEADER
HEADER
HEADER
 Unix
 Linux
 Solaris
 ABC
 DEF
 IGH
 Unix
 Linux
 Solaris

Want the output as

First file

Code:
HEADER
HEADER
HEADER
HEADER
 Unix
 Linux
 Solaris

Second file
Code:
HEADER
HEADER
HEADER
HEADER
 ABC
 DEF
 IGH

and so on

Please suggest
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk:Problem with getline

$ echo |awk ' BEGIN {"date" | getline current_time;close("date");print "Report printed on " current_time}' Report printed on Thu May 11 14:57:29 METDST 2006 This example works fine but how can i print all the output when is longer... (3 Replies)
Discussion started by: Klashxx
3 Replies

2. Shell Programming and Scripting

awk getline help maybe?

hello collegues, I am attempting to use awk to search file1 (serverlist.csv) from each row with file2 (supported.txt). If the is no entry exists in serverlist then output to a file called notsupp.out if there is an entry output to supp.out I can do this with basic shell scripting however... (0 Replies)
Discussion started by: chlawren
0 Replies

3. Shell Programming and Scripting

NAWK getline function

Hi, I am using a Solaris OS here. My intention is to print the 2nd field if the first field matches "APPLE=". I am using the "getline" function here (shown below), but it doesn;t work. Can any experts give me some advice? Input: ORANGE= 10 APPLE= 20 MANGO= 30 GRAPES= 40 Output: 20 ... (5 Replies)
Discussion started by: Raynon
5 Replies

4. Shell Programming and Scripting

get sysname with getline in awk

I am having issues getting this working. I am trying to get the system name and print it out in a awk script. I looked and looked, it looks like my syntax is correct but it is not working. What am I overlooking?? BEGIN { sys1 = "system( "uname -n" )" "sys1" | getline sys ... (2 Replies)
Discussion started by: timj123
2 Replies

5. Shell Programming and Scripting

awk getline

How do you make the getline function return to the original line? The example below should make it clear where I am currently going wrong. Thanks AWK SCRIPT: ------------- awk -F '-' '{ tmpLine = "EMPTY" print "CURRENT LINE :"$0 getline tmpLine print "NEXT LINE :"tmpLine }'... (1 Reply)
Discussion started by: garethsays
1 Replies

6. Shell Programming and Scripting

Using getline in awk

I am using awk and want to use getline from a file like below getline x < file However file consists of two columns and I only want to store $2 Any way I can do this? ---------- Post updated at 06:54 AM ---------- Previous update was at 06:45 AM ---------- Done something like this.... (1 Reply)
Discussion started by: kristinu
1 Replies

7. Shell Programming and Scripting

Some Awk Getline help?

Greetings, I have about 3000 files that I want to search. The first column in all of these 3000 files has a unique serial number on each line. The subsequent columns have lots of data. I have another masterfile with three columns to help me find all the data I need in a moments notice: col 1... (15 Replies)
Discussion started by: jeeplou
15 Replies

8. Shell Programming and Scripting

awk getline question

hi experts i like to know how to print more line using getline command using awk. with below command i can only see one line (line no:1) however i do have more line as shown below line no:2,line no:3,line no:4 and so forth. how do i get those to show up using the below command. I tried... (7 Replies)
Discussion started by: Jared
7 Replies

9. Shell Programming and Scripting

awk getline

Hi, I have an awk script with the following function in it . function cmd( c ) { while( ( c | getline foo) > 0 ){ return foo ; close( c ); } } c =... (4 Replies)
Discussion started by: MetaMan
4 Replies

10. Shell Programming and Scripting

awk with if, getline, and another if

Howdy Folks, It seems like it is always awk that confuses the heck out of me and I even have books and examples. I have this line: awk '{if (/clientIP/)(SRV = $NF); if ($2 ~ /BUNDLE-GIM/) getline; if ($2 ~ /r100595/) {print SRV,"BUNDLE-GIM",$2}}' post.txt to parse this text: <api... (4 Replies)
Discussion started by: port43
4 Replies

LEARN ABOUT PHP

pr

PR(1)                                                              User Commands                                                             PR(1)

NAME

       pr - convert text files for printing

SYNOPSIS

       pr [OPTION]... [FILE]...

DESCRIPTION

       Paginate or columnate FILE(s) for printing.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       +FIRST_PAGE[:LAST_PAGE], --pages=FIRST_PAGE[:LAST_PAGE]
              begin [stop] printing with page FIRST_[LAST_]PAGE

       -COLUMN, --columns=COLUMN
              output COLUMN columns and print columns down, unless -a is used. Balance number of lines in the columns on each page

       -a, --across
              print columns across rather than down, used together with -COLUMN

       -c, --show-control-chars
              use hat notation (^G) and octal backslash notation

       -d, --double-space
              double space the output

       -D, --date-format=FORMAT
              use FORMAT for the header date

       -e[CHAR[WIDTH]], --expand-tabs[=CHAR[WIDTH]]
              expand input CHARs (TABs) to tab WIDTH (8)

       -F, -f, --form-feed
              use form feeds instead of newlines to separate pages (by a 3-line page header with -F or a 5-line header and trailer without -F)

       -h, --header=HEADER
              use a centered HEADER instead of filename in page header, -h "" prints a blank line, don't use -h""

       -i[CHAR[WIDTH]], --output-tabs[=CHAR[WIDTH]]
              replace spaces with CHARs (TABs) to tab WIDTH (8)

       -J, --join-lines
              merge full lines, turns off -W line truncation, no column alignment, --sep-string[=STRING] sets separators

       -l, --length=PAGE_LENGTH
              set the page length to PAGE_LENGTH (66) lines (default number of lines of text 56, and with -F 63).  implies -t if PAGE_LENGTH <= 10

       -m, --merge
              print all files in parallel, one in each column, truncate lines, but join lines of full length with -J

       -n[SEP[DIGITS]], --number-lines[=SEP[DIGITS]]
              number lines, use DIGITS (5) digits, then SEP (TAB), default counting starts with 1st line of input file

       -N, --first-line-number=NUMBER
              start counting with NUMBER at 1st line of first page printed (see +FIRST_PAGE)

       -o, --indent=MARGIN
              offset each line with MARGIN (zero) spaces, do not affect -w or -W, MARGIN will be added to PAGE_WIDTH

       -r, --no-file-warnings
              omit warning when a file cannot be opened

       -s[CHAR], --separator[=CHAR]
              separate  columns  by  a single character, default for CHAR is the <TAB> character without -w and 'no char' with -w.  -s[CHAR] turns
              off line truncation of all 3 column options (-COLUMN|-a -COLUMN|-m) except -w is set

       -S[STRING], --sep-string[=STRING]
              separate columns by STRING, without -S: Default separator <TAB> with -J and <space> otherwise (same as -S" "), no effect  on  column
              options

       -t, --omit-header
              omit page headers and trailers; implied if PAGE_LENGTH <= 10

       -T, --omit-pagination
              omit page headers and trailers, eliminate any pagination by form feeds set in input files

       -v, --show-nonprinting
              use octal backslash notation

       -w, --width=PAGE_WIDTH
              set page width to PAGE_WIDTH (72) characters for multiple text-column output only, -s[char] turns off (72)

       -W, --page-width=PAGE_WIDTH
              set page width to PAGE_WIDTH (72) characters always, truncate lines, except -J option is set, no interference with -S or -s

       --help display this help and exit

       --version
              output version information and exit

AUTHOR

       Written by Pete TerMaat and Roland Huebner.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report pr translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       Full documentation at: <http://www.gnu.org/software/coreutils/pr>
       or available locally via: info '(coreutils) pr invocation'

GNU coreutils 8.28                                                 January 2018                                                              PR(1)
All times are GMT -4. The time now is 10:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy