awk vs perl Post: 302393029

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

AWK embeded PERL

Hello Guys, I am refering to this great forum once again for help. After various attempts at this, I am still failing to obtain the desire effect. I have to write a perl script which: 1- reads two values from the user (e.g name & passwd) 2- check each value against a file containing the...

2. Shell Programming and Scripting

awk to perl convert

Dear Collegue Do anybody help me to convert this AWK script to Perl script { for (i = 2; i <= length ($0); i++) { x = substr($0, i , 1) if (c > 0) { b = b x if (x == "(") c++ ...

3. Shell Programming and Scripting

awk command with PERL

Hi All, My Input file looks like below: Input: 100,200,300 $fw=`head -1 test.csv | awk -F, '{print \$1}'`; $fw="'$fw" $fw="$fw'" print $fw Output:'100' I want the first field to be printed in single quotes ('') like above. I could get the ouptput but the problem is single...

4. Shell Programming and Scripting

awk or perl

hi all I am new to awk/perl I would appreciate it if you could help! how do I read a sub folder and their files. e.g. simulation/10ms/router1.dat, router2.dat,..., router16.dat simulation/100ms/router1.dat, router2.dat,..., router16.dat simulation/300ms/router1.dat,...

5. Shell Programming and Scripting

Using perl grep and awk

I have a script to get server information i wrote in perl because i would like to learn it (and I use it for work). It works great, however i would like to know if there is a good way to reduce the following line. Sean

6. Shell Programming and Scripting

awk - to -- PERL

DEAR ALL, i am using following command to fetch some records from more then 50000 files... command is taking more time .... can i have perl command for the same...( i am New to perl ) awk -F "|" '{ if($4==3244898 && $5==5000185) print $66}' *.DATA

7. Shell Programming and Scripting

get value between <abc and > by perl, awk

Hi Everyone, cat 1.txt a <abc b vfff c 000> d 4444 the output is: <abcvfff000> by using perl or awk, can get the value betwee "<abc" and ">", assume 1.txt has lots of those tags, so the output can filter out all those values. Please advice. Thanks

8. Shell Programming and Scripting

awk and perl grouping.

Hello folks. After awk, i have decided to start to learn perl, and i need some help. I have following output : 1 a 1 b 2 k 2 f 3 s 3 p Now with awk i get desired output by issuing : awk ' { a = a FS $2 } END { for ( i in a) print i,a }' input 1 a b 2 k f 3 s p Can...

9. Shell Programming and Scripting

What is the equivalent of NR (awk) in perl?

Hello, I searched online; it seems that perl use $NR as NR in awk; however it does not work for me. For example, how to re-write the following awk using perl: awk '{ print NR}' inputfile---------- Post updated at 01:55 PM ---------- Previous update was at 12:49 PM ---------- I found...

10. UNIX for Beginners Questions & Answers

Converting awk to perl

Hello. I'm trying to convert an awk script I wrote to perl (which I just started self-teaching). I tried the a2p command but I couldn't make sense of most of it. Here was the awk code: BEGIN{ FS = "," print "NAME\tLOW\tHIGH\tAVERAGE" a=0 } { if(a==0){ a+=1

LEARN ABOUT BSD

join

JOIN(1) 						      General Commands Manual							   JOIN(1)

NAME

       join - relational database operator

SYNOPSIS

       join [ options ] 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.

       -jn m  Join on the mth field of file n.	If n is missing, use the mth field in each file.

       -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

AWK embeded PERL

Discussion started by: bionicfysh

2. Shell Programming and Scripting

awk to perl convert

Discussion started by: jaganadh

3. Shell Programming and Scripting

awk command with PERL

Discussion started by: kmkbuddy_1983

4. Shell Programming and Scripting

awk or perl

Discussion started by: mmoses