shell variable in awk Post: 302132694

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1. Shell Programming and Scripting

Shell variable with awk

line_no=6 echo 'Phone,' `awk 'NR==$line_no{print;exit}' <filename>` what is the error in this.. it says.. awk: Field $() is not correct. The input line number is 1. The file is <filename>. The source line number is 1. i want to print the data in the $line_no line of a certain...

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Return Awk Variable to Shell

I'm a bit stuck in getting variable from awk to shell. I tried searching but most of them showing to assign to shell variable via.. VAR=`echo $line | awk -F: '{print $1}'` which is correct ofcourse My problem is multiple assignments of variable like this one. The above solution will give...

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assign awk's variable to shell script's variable?

Dear All, we have a command output which looks like : Total 200 queues in 30000 Kbytes and we're going to get "200" and "30000" for further process. currently, i'm using : numA=echo $OUTPUT | awk '{print $2}' numB=echo $OUTPUT | awk '{print $5}' my question is : can I use just one...

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How to change awk and shell variable value?

In awk script, #!/bin/sh awk 'BEGIN{i=0;}{i=i+5;}END{print i}' in.txt vr=0; vr=$i; echo "$vr" How can i assign that value of i in $vr(variable) of shell script?

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Shell variable in awk

I have 3 files and each contain m*n matrix. m = number of rows (horizontal lines) n = number of columns (entries in a particular line) What I wish to find is the sum of the 2nd number in the last row. Ex file1.dat 2 5 8 8 4 6 7 8 3 8 3 7 file2.dat 3 4 1 4 8 4 0 3 4 7 3 7 ...

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use shell variable in awk command

Trying to do something like this ls -lrt | awk '$9=="test5"' -rw-r--r-- 1 lrmq db2iadm1 381 Sep 20 21:56 test5 But now, I need to give a variable in place of test5. For example let's define x as test5 x=test5 ls -lrt | awk '$9=="$x"' This doesn't seem to be working. It doesn't take the...

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How to use shell variable in awk?

How do you use a shell variable in awk? I am using Solaris 10 and don't have GNU products installed. File (transportation.txt) contents: car boat airplane snowmobile bicycle sled This awk statment works (prints from the car line down to bicycle awk '/car/,/bicycle/'...

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Awk: How to get an awk variable out to the shell, using system() ?

I am reasonably capable with awk and its quirks, but not with shell weirdness. This has to be Bourne Shell for portability reasons. I have an awk program that is working just fine; it handles multiple input streams and produces several reports, based on the request (-v Variables). In addition...

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Shell variable expansion in awk

I want to split one file input.tab into two separate ones, odd lines to input_reads1.txt, even lines to input_reads2.txt for a serial of files with similar name pattern. Also I want to "match" input/output file names to keep consistency of file name: CSEL_02.0_input.tab CSEL_03.4_input.tab...

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How can I assign awk's variable to shell script's variable?

I have the following script, and I want to assign the output ($10 and $5) from awk to N and L: grdinfo data.grd | awk '{print $10,$5}'| read N L output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use...

LEARN ABOUT MINIX

join

JOIN(1) 						      General Commands Manual							   JOIN(1)

NAME

       join - relational database operator

SYNOPSIS

       join [-an] [-e s] [-o list] [-tc] file1 file2

DESCRIPTION

       Join  forms,  on the standard output, a join of the two relations specified by the lines of file1 and file2.  If file1 is `-', the standard
       input is used.

       File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the  first	in
       each line.

       There  is  one line in the output for each pair of lines in file1 and file2 that have identical join fields.  The output line normally con-
       sists of the common field, then the rest of the line from file1, then the rest of the line from file2.

       Fields are normally separated by blank, tab or newline.	In this case, multiple separators count as one, and leading  separators  are  dis-
       carded.

       These options are recognized:

       -an    In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.

       -e s   Replace empty output fields by string s.

       -o list
	      Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
	      field number.

       -tc    Use character c as a separator (tab character).  Every appearance of c in a line is significant.

SEE ALSO

       sort(1), comm(1), awk(1).

BUGS

       With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.

       The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.

7th Edition							  April 29, 1985							   JOIN(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Shell variable with awk

Discussion started by: St.Fartatric

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Return Awk Variable to Shell

Discussion started by: ryandegreat25

3. Shell Programming and Scripting

assign awk's variable to shell script's variable?

Discussion started by: tiger2000

4. Shell Programming and Scripting

How to change awk and shell variable value?

Discussion started by: cola