03-17-2017
With just glance at your script I see that
- both input files being read via what seems to be the same file descriptor - might work by accident but is sloppy programming; use different fd explicitly
- if it would work, for every line in file1 the entire file2 is being read - highly inefficient
- every time fname is found in the input files, its hitherto existing contents will be overwritten - mayhap undesired
Last edited by RudiC; 03-17-2017 at 01:50 PM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi
i am having four files in a directory.like
1)sampleRej
2)exampleRej
3)samplemain
4)examplemain
my requirement is i have to search for the rejected files (sampleRej,exampleRej) in a directory.if these files in that directory then i have to delete the main files... (3 Replies)
Discussion started by: srivsn
3 Replies
2. Shell Programming and Scripting
Hi I am Newbie to Unix.Appreciate Help from forum
user would loada b.Csv File(Below example) in /data/m/ directory.Program need to read the b.csc to extract certain column and create a new file /data/d/ directory as csv file with new name.
User File Format
1232,samshouston,12345... (3 Replies)
Discussion started by: skywayterrace
3 Replies
3. UNIX for Advanced & Expert Users
Hi Gurus,
I am having an requirement. i have to read a list file which contains file names and send mail to different users based on the files in the list file.
eg. if file a.txt exists then send a mail to a@a.com
simillary for b.txt,c.txt etc.
Thanks for your help,
Nimu (6 Replies)
Discussion started by: nimu1979
6 Replies
4. Shell Programming and Scripting
I have a requirement, which is as follows
*. Folder contains list of xmls. Script has to create new xml files by copying the existing one and renaming it by appending "_pre.xml" at the end.
*. Each file has multiple <Name>fileName</Name> entry. The script has to find the first occurance of... (1 Reply)
Discussion started by: sudesh.ach
1 Replies
5. Shell Programming and Scripting
Hey guy,
how to make bash script to create foo.txt file and add current date into file content and that file always append.
example: today the script run and add today date into content foo.txt
and tomorrow the script will run and add tomorrow date in content foo.txt without remove today... (3 Replies)
Discussion started by: chenboly
3 Replies
6. Shell Programming and Scripting
Hello Guys ,
I need an another help regarding the below problem.
I want to create a new file based on the existing file ,where two columns will be changed according to user input .(say column 4 and column 5)
Please let me know how to proceed with
Thanks (3 Replies)
Discussion started by: Pratik4891
3 Replies
7. Shell Programming and Scripting
Hi guys,
i have a file in below format.let me explain first what i am trying to do .
i am making a file from this file , will rearrange these columns, then i will run several command(start/stop mentioned in this file) on unix environment. my requirements :
1. i have 27 servers , on each server... (4 Replies)
Discussion started by: deepakiniimt
4 Replies
8. Shell Programming and Scripting
Hi to all,
I got this content/pattern from file http.log.20110808.gz
mail1 httpd: Account Notice: close igchung@abc.com 2011/8/7 7:37:36 0:00:03 0 0 1
mail1 httpd: Account Information: login sastria9@abc.com proxy sid=gFp4DLm5HnU
mail1 httpd: Account Notice: close sastria9@abc.com... (16 Replies)
Discussion started by: Mr_47
16 Replies
9. Shell Programming and Scripting
Hi Guru's,
I am new to shell scripting. I have a unique requirement:
The system generates a single pdf(/tmp/ABC.pdf) file with Invoices for Multiple Customers, the format is something like this:
Page1 >> Customer 1 >>Invoice1 + invoice 2 >> Page1 end
Page2 >> Customer 2 >>Invoice 3 + Invoice 4... (3 Replies)
Discussion started by: DIps
3 Replies
10. UNIX for Beginners Questions & Answers
I have a txt file with a list of error messages in a xml tag format, and each error message is separated with a identifier(endresult).Need to split that and copy and create a new html file.Error message has some special character. how to escape the special character and insert my data into the... (7 Replies)
Discussion started by: DevAakash
7 Replies
MONGO(1) Mongo Database MONGO(1)
NAME
mongo - the Mongo command-line tool
SYNOPSIS
mongo [OPTIONS] [DB_ADDRESS] [FILE+]
DESCRIPTION
mongo is a JavaScript shell (with GNU readline capabilities). It supports interactive and non-interactive use. When used interactively,
JavaScript can be used to query the database or perform any other function normally available with SpiderMonkey. Database output is dis-
played in JSON format.
If JavaScript files are specified on the command line, the shell will run non-interactively, running each one in sequence and then exiting.
EXAMPLES
mongo start the shell, connecting to the server at localhost:27017 and using the test database
mongo foo
start the shell using the foo database at localhost:27017
mongo 192.169.0.5/foo
start the shell using the foo database at 192.169.0.5:27017
mongo 192.169.0.5:9999/foo
start the shell using the foo database at 192.169.0.5:9999
mongo script1.js script2.js script3.js
run three scripts and exit
OPTIONS
--shell
run the shell after executing files
--help show usage information
--host HOST
server to connect to (default HOST=localhost)
--port PORT
port to connect to (default PORT=27017)
--nodb do not connect to mongod
--eval SCRIPT
evaluate JavaScript
-u USERNAME
specify user to log in as
-pPASSWORD
specify password of user (notice there is no space)
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 MONGO(1)