Sponsored Content
Top Forums Shell Programming and Scripting Parsing a CSV file and deleting all rows on condition Post 302528742 by landossa on Wednesday 8th of June 2011 12:35:50 AM
Old 06-08-2011
hi rdcwayx,

I tried this but can't seem to get it to work. Also I've only got one infile, so I'm not comparing two different files, but rather comparing records, and if there are 4 records with the exact same field value for one of the specific fields, then deleting all four records. Something like an < infile > outfile function.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Deleting the emty rows in a file

I am getting some spaces between the two lines(rows) in file.i want delete that empty rows in the file example 1 abc xyz 2 def jkl like i am having lots of rows in a file i want to delete the spce between the two rows give any... (7 Replies)
Discussion started by: srivsn
7 Replies

2. Shell Programming and Scripting

deleting rows & columns form a csv file

Hi , I want to delete some rows & columns from file. can someone please help me on this? Regards. (2 Replies)
Discussion started by: code19
2 Replies

3. Shell Programming and Scripting

Deleting rows from csv file

Hello, I am supposed to process about 100 csv files. But these files have some extra lines at the bottom of the file. these extra lines start with a header for each column and then some values below. These lines are actually a summary of the actual data and not supposed to be processed. These... (8 Replies)
Discussion started by: cobroraj
8 Replies

4. Shell Programming and Scripting

Deleting specific rows in large files having rows greater than 100000

Hi Guys, I need help in modifying a large text file containing more than 1-2 lakh rows of data using unix commands. I am quite new to the unix language the text file contains data in a pipe delimited format sdfsdfs sdfsdfsd START_ROW sdfsd|sdfsdfsd|sdfsdfasdf|sdfsadf|sdfasdf... (9 Replies)
Discussion started by: manish2009
9 Replies

5. Shell Programming and Scripting

2 problems: Mailing CSV file / parsing CSV for display

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)
Discussion started by: soldstatic
6 Replies

6. UNIX for Dummies Questions & Answers

Help with deleting specific rows from a text file

I know this is a complicated question but I will try to illustrate it with some data. I have a data file that looks like the following: 1341 NA06985 0 0 2 46.6432798439 1341 NA06991 NA06993 NA06985 2 48.8478948517 1341 NA06993 0 0 1 45.8022601455 1340 NA06994 0 0 1 48.780669145 1340... (1 Reply)
Discussion started by: evelibertine
1 Replies

7. UNIX for Dummies Questions & Answers

Deleting specific rows from a text file

How do I go about deleting specific rows from a text file (given row number)? (5 Replies)
Discussion started by: evelibertine
5 Replies

8. Shell Programming and Scripting

deleting rows under a certain condition

there are 20 variables and I would like to delete the rows if 13th-20th columns are all NA. Thank you! FID IID aspirpre statihos fibrahos ocholhos arbhos betabhos alphbhos cacbhos diurehos numbcig.x toast1 toast2 toast3 toast4 ischoth1 ischoth2 ischoth3 ischoth4 101 101 1 1 1 1 1 2 1 2... (2 Replies)
Discussion started by: johnkim0806
2 Replies

9. Shell Programming and Scripting

Read column from file and delete rows with some condition..

Hi.... I have a need of script to do delete row whenever condition is true.... 2.16 (3) 1 3 9999 0 (1) (0) 34.42 (4) 1 3 9999 37 (2) (3) 34.38 (4) 1 3 9999 64 (2) (3) 34.4 (4) 1 3 1 ... (13 Replies)
Discussion started by: nex_asp
13 Replies

10. Shell Programming and Scripting

Deleting all the fields(columns) from a .csv file if all rows in that columns are blanks

Hi Friends, I have come across some files where some of the columns don not have data. Key, Data1,Data2,Data3,Data4,Data5 A,5,6,,10,, A,3,4,,3,, B,1,,4,5,, B,2,,3,4,, If we see the above data on Data5 column do not have any row got filled. So remove only that column(Here Data5) and... (4 Replies)
Discussion started by: ks_reddy
4 Replies
MONGOEXPORT(1)							  Mongo Database						    MONGOEXPORT(1)

NAME
mongoexport - the Mongo export tool SYNOPSIS
mongoexport [OPTIONS] DESCRIPTION
mongoexport is a tool to export a MongoDB collection to either JSON or CSV. The query can be filtered or a list of fields to output can be given. If the output is CSV, the fields must be specified in order. EXAMPLES
mongoexport -d test -c test1 --csv -f name,num export documents from test.test1 in CSV format OPTIONS
--help show usage information -h, --host HOST server to connect to (default HOST=localhost) -d, --db DATABASE database to use -c, --c COLLECTION collection to use -q, --query QUERY query filter -f, --fields FIELDS comma-separated list of field names --csv export to CSV instead of JSON -o, --out FILE output file, if not specified, stdout is used --dbpath PATH directly access mongod data files in this path, instead of connecting to a mongod instance COPYRIGHT
Copyright 2007-2009 10gen SEE ALSO
For more information, please refer to the MongoDB wiki, available at http://www.mongodb.org. AUTHOR
Kristina Chodorow 10gen June 2009 MONGOEXPORT(1)
All times are GMT -4. The time now is 12:45 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy