Join Post: 302320576

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1. Shell Programming and Scripting

join (pls help on join command)

Hi, I am a new learner of join command. Some result really make me confused. Please kindly help me. input: file1: LEO oracle engineer 210375 P.Jones Office Runner ID897 L.Clip Personl Chief ID982 S.Round UNIX admin ID6 file2: Dept2C ID897 6 years Dept5Z ID982 1 year Dept3S ID6 2...

2. Programming

sql,multiple join,outer join issue

example sql: select a.a1,b.b1,c.c1,d.d1,e.e1 from a left outer join b on a.x=b.x left outer join c on b.y=c.y left outer join d on d.z=a.z inner join a.t=e.t I know how single outer or inner join works in sql. But I don't really understand when there are multiple of them. can...

3. Shell Programming and Scripting

Join

joining two files: File1: ----- 1|M 2|M 3|F File2: ----- 1|abc|def 3|xyz|pqr join -t '|' 1.txt 2.txt gives(Itried many other ways) 1|M|abc|def 3|F|xyz|pqr but I need the result like following

4. UNIX for Dummies Questions & Answers

Use of join

I want basically to merge two config files each of them look like that File:Option1 value1 Optionx valuex .... One of those files is default config while the other is generated by my script. Now here is the problem, when my script generates an option that previously has been set by default i...

5. UNIX for Dummies Questions & Answers

Join 2 files with multiple columns: awk/grep/join?

Hello, My apologies if this has been posted elsewhere, I have had a look at several threads but I am still confused how to use these functions. I have two files, each with 5 columns: File A: (tab-delimited) PDB CHAIN Start End Fragment 1avq A 171 176 awyfan 1avq A 172 177 wyfany 1c7k A 2 7...

6. Shell Programming and Scripting

Join help

im trying to join 3 files together sort -n ${ASS1_DATA_DIR}Prac1 | sed '/^#/d' > ${ASS1_OUTPUT_DIR}Prac1temp sort -n ${ASS1_DATA_DIR}Prac2 | sed '/^#/d' > ${ASS1_OUTPUT_DIR}Prac2temp join -a1 -a2 -1 1 -2 1 -o "0 1.2 2.2" -e " " ${ASS1_OUTPUT_DIR}Prac1temp ${ASS1_OUTPUT_DIR}Prac2temp >...

7. UNIX for Dummies Questions & Answers

how to join two files using "Join" command with one common field in this problem?

file1: Toronto:12439755:1076359:July 1, 1867:6 Quebec City:7560592:1542056:July 1, 1867:5 Halifax:938134:55284:July 1, 1867:4 Fredericton:751400:72908:July 1, 1867:3 Winnipeg:1170300:647797:July 15, 1870:7 Victoria:4168123:944735:July 20, 1871:10 Charlottetown:137900:5660:July 1, 1873:2...

8. UNIX for Dummies Questions & Answers

How to use the the join command to join multiple files by a common column

Hi, I have 20 tab delimited text files that have a common column (column 1). The files are named GSM1.txt through GSM20.txt. Each file has 3 columns (2 other columns in addition to the first common column). I want to write a script to join the files by the first common column so that in the...

9. Shell Programming and Scripting

Join, merge, fill NULL the void columns of multiples files like sql "LEFT JOIN" by using awk

Hello, This post is already here but want to do this with another way Merge multiples files with multiples duplicates keys by filling "NULL" the void columns for anothers joinning files file1.csv: 1|abc 1|def 2|ghi 2|jkl 3|mno 3|pqr file2.csv: 1|123|jojo 1|NULL|bibi...

LEARN ABOUT DEBIAN

mongo

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)