It wouldn't degrade the performance...but performing an operation on 100 GB file at a time vs performing the task on 1GB files parallelly...
That's the beauty of Hadoop
But upto you to choose where to do this task.
Below is the code
This is tested the below is the output ---------- Post updated at 06:21 AM ---------- Previous update was at 06:20 AM ----------
dont get confused about last record '77', I manually made it a bad record to check few conditions
I have a CSV file which contains number series as one of the fields. Some of the records of the field look like :
079661/3
I have to convert the above series as
079661
079662
079663
and store it as 3 different records.
Looking for help on how to achieve this. Am a newbie at Shell... (10 Replies)
I am trying to parse a csv file in the below 'name-value pair' format and then use the values corresponding to the name.
Type:G,Instance:instance1,FunctionalID:funcid,Env:dev,AppName:appname... (6 Replies)
I have a CSV file that needs to through two seperate processes (in the end there will be 2 files (Dload.unl and Tload.unl and we'll say the input file name is mass.csv). I have a processfile() function that will call the process Dload funtion. In Dload I want to read mass.csv into Dload and then... (1 Reply)
I have been trying to find a good solution for this seemingly simple task for 2 days, and I'm giving up and posting a thread. I hope someone can help me out!
I'm on HPUX, using sqlplus, mailx, awk, have some other tools available, but can't install stuff that isn't already in place (without a... (6 Replies)
Hey guys,
I'm in the process of learning PHP and BASH scripting. I'm getting there, slowly ;)
I would like some help with parsing a CSV file. This file contains a list of hostnames, dates, and either Valid, Expired, or Expired Soon in the last column.
Basically, I want to parse the file,... (12 Replies)
Yes, there is a great doc out there that discusses parsing csv files with sed, and this topic has been covered before but not enough to answer my question (unix.com forums).
I'm trying to parse a CSV file that has optional quotes like the following:
"Apple","Apples, are fun",3.60,4.4,"I... (3 Replies)
Hello list,
I am working on a csv file which contains two fields per record which contain IP addresses. What I am trying to do is find records which have identical fields(IP addresses) which occur 4(four) times, and if they do, delete all records with that specific identical field(ip address).
... (4 Replies)
Hi Members, I am stuck with the following problem. Request your kind help
I have an csv file which contains, 1 header record, data records and 1 footer record. Sample is as below
Contents of cm_update_file_101010.csv
--------------------------------------------------
... (6 Replies)
Hi,
Newbie here and I need some help to parse a csv file that contains fields separated by ",". What I need to achieve here is, read the 1 line file and extract 240 fields and pass to a variable and then read the next 240 fields and pass to a variable, over and over. If anyone can assist that... (4 Replies)
Hello All,
I have an input CSV file like below, where first row data can be in different position after every run of the tool, i.e. pzTest in below example is in column 1, but it can be also in 3 column and same for all the headers in the first row.
pzTest, pzExtract, pxUpdate, pzInfo... (1 Reply)
Discussion started by: asirohi
1 Replies
LEARN ABOUT LINUX
stdlib
STDLIB(7) Erlang Application Definition STDLIB(7)NAME
STDLIB - The STDLIB Application
DESCRIPTION
The STDLIB is mandatory in the sense that the minimal system based on Erlang/OTP consists of Kernel and STDLIB. The STDLIB application con-
tains no services.
CONFIGURATION
The following configuration parameters are defined for the STDLIB application. See app(5) for more information about configuration parame-
ters.
shell_esc = icl | abort :
This parameter can be used to alter the behaviour of the Erlang shell when ^G is pressed.
restricted_shell = module() :
This parameter can be used to run the Erlang shell in restricted mode.
shell_catch_exception = bool() :
This parameter can be used to set the exception handling of the Erlang shell's evaluator process.
shell_history_length = integer() >= 0 :
This parameter can be used to determine how many commands are saved by the Erlang shell.
shell_prompt_func = {Mod, Func} | default :
where
* Mod = atom()
* Func = atom()
This parameter can be used to set a customized Erlang shell prompt function.
shell_saved_results = integer() >= 0 :
This parameter can be used to determine how many results are saved by the Erlang shell.
SEE ALSO app(5) , application(3erl) , shell(3erl) ,
Ericsson AB stdlib 1.17.3 STDLIB(7)