Sponsored Content
Full Discussion: multiple delimeters in awk
Top Forums Shell Programming and Scripting multiple delimeters in awk Post 302564571 by CarloM on Friday 14th of October 2011 05:21:48 AM
Old 10-14-2011
Does the output need to be in the same format (i.e. comma-separated and with quotes preserved)?

Quote:
Originally Posted by jayan_jay
Code:
$ sed 's,\",,g' infile | awk -F, '{ print $1............$92 }' >> outfile.csv

Note that this will split the single field "10,00.00" into 10 and 00.00.

Last edited by CarloM; 10-14-2011 at 06:40 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Parsing a file that contains 2 types of delimeters

I am trying to write a script and failing miserably. I have a file that looks something like this; 20050924-155819;Backoffice;1037;0;DDT-TCP/IP;;0;Node 20050924-155902;Unknown;1036;0;DDT-TCP/IP;;0;Node 20050924-155922;FrontOffice;1040;5;DDT- The desired result is one file containing only... (4 Replies)
Discussion started by: morgadoa
4 Replies

2. Shell Programming and Scripting

Parsing a file that contains 2 types of delimeters

Now that I have a file that looks something like this; 20050926 Unknown 20050926 MUREXFO 20050926 MUREXFO 20050926 MUREXFO 20050926 Unknown 20050926 KADDUSS 20050926 KADDUSS 20050926 KADDUSS 20050926 MUREXFO Is there a way in vi that I can search the file and remove any line... (2 Replies)
Discussion started by: morgadoa
2 Replies

3. Shell Programming and Scripting

awk with two delimeters

Hi, can anyone explain me below codes...i used the below one to use two delimeter(://) at a time.. but i am not able to understand the output options.. note: here there is no requirement ..only to understand myself about below command... command: awk -F "" '{print $1}' inputfile ... (2 Replies)
Discussion started by: Shahul
2 Replies

4. Shell Programming and Scripting

awk with column delimeters

Hi All, I want to execute this cat /etc/passwd | awk -F: '{print $1,$7}' with a fixed column on the first and second. Say on the first I want 12 column and second with 20 column. Example root /usr/bin/ksh lp /bin/false Thanks for any comment you may add. (5 Replies)
Discussion started by: itik
5 Replies

5. UNIX for Advanced & Expert Users

Delimeters Count in a FlatFile

Hi, I have the below script to check the count of delimeters for a file (here is File : test.csv Delimeter is ",") awk '{gsub(/"*"/,x);print gsub(/,/,x)}' test.csv And it return the output for each line as: 2 2 cat test.csv: abc,xyz "abc,zxyz",1 I need help one the below things: - IS... (8 Replies)
Discussion started by: venkatajay_18
8 Replies

6. Shell Programming and Scripting

How to get a string between two delimeters using sed.

I want to get IP address only from the input using sed. i.e string between between "(" and ")" delimeters. echo "serverA (11.22.333.444) is alive" | sed 's/<??>/<??>/' I know how to do this using cut and awk's split features. I also want to know how to do this using awk's... (3 Replies)
Discussion started by: kchinnam
3 Replies

7. Shell Programming and Scripting

Commas within Delimeters

Hi experts, I would like a favour from you guys to get the info from 5th column which was separated by the delimeter comma ( , ) The Data file is as below:- 1,USER1,"90, TEST AVENUE, OLD ROAD",test1,124,N 2,USER2,88 TEST STREET NEW ROAD,test2,123,N The User File is as below:- USER1... (1 Reply)
Discussion started by: shenkz
1 Replies

8. Shell Programming and Scripting

Lines between specific delimeters

Hi, I have a requirement like this Line 1 Line 2 Line 3 Manager Line 4 Line 5 I have to print like this Have you done your work on time because I have to forward the work forward. Any Help is really Appriciated.... (1 Reply)
Discussion started by: abhishek7687
1 Replies

9. Shell Programming and Scripting

Split a line into multiple lines based on delimeters

Hi, I need help to split any lines that contain ; or , input.txtAc020 Not a good chemical process AC030 many has failed, 3 still maintained AC040 Putative; epithelial cells AC050 Predicted binding activity AC060 rodC Putative; upregulated in 48;h biofilm vs planktonic The output... (8 Replies)
Discussion started by: redse171
8 Replies

10. Shell Programming and Scripting

Replace last 9 delimeters “,” with “|” in UNIX

Hi Guys, I want to replace last 9 "," delimeters with "|" in a file Example :- "ashu,pant",3,5,5,7,7,87,8,8,8 "ashu,pant"|3|5|5|7|7|87|8|8|8 Help would be really appreciated. Thanks guys, Please use CODE tags as required by forum rules! (7 Replies)
Discussion started by: himanshupant
7 Replies
A2P(1)							 Perl Programmers Reference Guide						    A2P(1)

NAME
a2p - Awk to Perl translator SYNOPSIS
a2p [options] filename DESCRIPTION
A2p takes an awk script specified on the command line (or from standard input) and produces a comparable perl script on the standard out- put. Options Options include: -D<number> sets debugging flags. -F<character> tells a2p that this awk script is always invoked with this -F switch. -n<fieldlist> specifies the names of the input fields if input does not have to be split into an array. If you were translating an awk script that processes the password file, you might say: a2p -7 -nlogin.password.uid.gid.gcos.shell.home Any delimiter can be used to separate the field names. -<number> causes a2p to assume that input will always have that many fields. -o tells a2p to use old awk behavior. The only current differences are: o Old awk always has a line loop, even if there are no line actions, whereas new awk does not. o In old awk, sprintf is extremely greedy about its arguments. For example, given the statement print sprintf(some_args), extra_args; old awk considers extra_args to be arguments to "sprintf"; new awk considers them arguments to "print". "Considerations" A2p cannot do as good a job translating as a human would, but it usually does pretty well. There are some areas where you may want to examine the perl script produced and tweak it some. Here are some of them, in no particular order. There is an awk idiom of putting int() around a string expression to force numeric interpretation, even though the argument is always inte- ger anyway. This is generally unneeded in perl, but a2p can't tell if the argument is always going to be integer, so it leaves it in. You may wish to remove it. Perl differentiates numeric comparison from string comparison. Awk has one operator for both that decides at run time which comparison to do. A2p does not try to do a complete job of awk emulation at this point. Instead it guesses which one you want. It's almost always right, but it can be spoofed. All such guesses are marked with the comment ""#???"". You should go through and check them. You might want to run at least once with the -w switch to perl, which will warn you if you use == where you should have used eq. Perl does not attempt to emulate the behavior of awk in which nonexistent array elements spring into existence simply by being referenced. If somehow you are relying on this mechanism to create null entries for a subsequent for...in, they won't be there in perl. If a2p makes a split line that assigns to a list of variables that looks like (Fld1, Fld2, Fld3...) you may want to rerun a2p using the -n option mentioned above. This will let you name the fields throughout the script. If it splits to an array instead, the script is probably referring to the number of fields somewhere. The exit statement in awk doesn't necessarily exit; it goes to the END block if there is one. Awk scripts that do contortions within the END block to bypass the block under such circumstances can be simplified by removing the conditional in the END block and just exiting directly from the perl script. Perl has two kinds of array, numerically-indexed and associative. Perl associative arrays are called "hashes". Awk arrays are usually translated to hashes, but if you happen to know that the index is always going to be numeric you could change the {...} to [...]. Itera- tion over a hash is done using the keys() function, but iteration over an array is NOT. You might need to modify any loop that iterates over such an array. Awk starts by assuming OFMT has the value %.6g. Perl starts by assuming its equivalent, $#, to have the value %.20g. You'll want to set $# explicitly if you use the default value of OFMT. Near the top of the line loop will be the split operation that is implicit in the awk script. There are times when you can move this down past some conditionals that test the entire record so that the split is not done as often. For aesthetic reasons you may wish to change the array base $[ from 1 back to perl's default of 0, but remember to change all array sub- scripts AND all substr() and index() operations to match. Cute comments that say "# Here is a workaround because awk is dumb" are passed through unmodified. Awk scripts are often embedded in a shell script that pipes stuff into and out of awk. Often the shell script wrapper can be incorporated into the perl script, since perl can start up pipes into and out of itself, and can do other things that awk can't do by itself. Scripts that refer to the special variables RSTART and RLENGTH can often be simplified by referring to the variables $`, $& and $', as long as they are within the scope of the pattern match that sets them. The produced perl script may have subroutines defined to deal with awk's semantics regarding getline and print. Since a2p usually picks correctness over efficiency. it is almost always possible to rewrite such code to be more efficient by discarding the semantic sugar. For efficiency, you may wish to remove the keyword from any return statement that is the last statement executed in a subroutine. A2p catches the most common case, but doesn't analyze embedded blocks for subtler cases. ARGV[0] translates to $ARGV0, but ARGV[n] translates to $ARGV[$n]. A loop that tries to iterate over ARGV[0] won't find it. ENVIRONMENT
A2p uses no environment variables. AUTHOR
Larry Wall <larry@wall.org> FILES
SEE ALSO
perl The perl compiler/interpreter s2p sed to perl translator DIAGNOSTICS
BUGS
It would be possible to emulate awk's behavior in selecting string versus numeric operations at run time by inspection of the operands, but it would be gross and inefficient. Besides, a2p almost always guesses right. Storage for the awk syntax tree is currently static, and can run out. perl v5.8.0 2002-06-01 A2P(1)
All times are GMT -4. The time now is 02:31 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy