Linux - Join 2 csv files with common key

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1. UNIX for Dummies Questions & Answers

Merge selective columns from files based on common key

Hi, I am trying to selectively merge two files based on keys reported in the 1st column. File1: #file1-header1 file1-header2 111 qwe rtz uio 198 asd fgh jkl 165 yxc 789 poi uzt rew 89 lkj File2: #file2-header2 file2-header2 165 ghz nko2 ...

2. Shell Programming and Scripting

Merging files with common IDs without JOIN

Hi, I am trying to merge information across 2 files. The first file is a "master" file, with all IDS. File 2 contains a subset of IDs of those in File 1. I would like to match up individuals in File 1 and File 2, and add information in File 2 to that of File 1 if they appear. However, if an...

3. UNIX for Dummies Questions & Answers

How to join 2 .txt files based on a common column?

Hi all, I'm trying to join two .txt file tab delimitated based on a common column. File 1 transcript_id gene_id length effective_length expected_count TPM FPKM IsoPct comp1000201_c0_seq1 comp1000201_c0 337 183.51 0.00 0.00 0.00 0.00 comp1000297_c0_seq1 ...

4. Shell Programming and Scripting

Join two files with common and range identifiers

I have a problem joining two files. The first file abc.txt has 10k lines and has lots of fields but two fields fff1 and ppp1 to merge by. The second file xyz.txt is a master file with 1k lines and lots of fields but three fields to merge by fff1; rrr1 and qqq1. The two files need to be merged...

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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...

6. 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...

7. Shell Programming and Scripting

join files based on a common field

Hi experts, Would you please help me with this? I have several files and I need to join the forth field of them based on the common first field. here's an example... first file: 280346 39.88 -75.08 547.8 280690 39.23 -74.83 538.7 280729 40.83 -75.08 499.2 280907 40.9 -74.4 507.8...

8. Shell Programming and Scripting

Join multiple files based on 1 common column

I have n files (for ex:64 files) with one similar column. Is it possible to combine them all based on that column ? file1 ax100 20 30 40 ax200 22 33 44 file2 ax100 10 20 40 ax200 12 13 44 file2 ax100 0 0 4 ax200 2 3 4

9. Shell Programming and Scripting

"Join" or "Merge" more than 2 files into single output based on common key (column)

Hi All, I have working (Perl) code to combine 2 input files into a single output file using the join function that works to a point, but has the following limitations: 1. I am restrained to 2 input files only. 2. Only the "matched" fields are written out to the "matched" output file and...

10. Shell Programming and Scripting

Join 3 files using key column in a mapping file

I'm new of UNIX shell scripting. I'm recently generating a excel report in UNIX(file with delimiter is fine). How should I make a script to do it? 1 file to join comes from output of one UNIX command, the second from another UNIX command, and third from a database query. The key columes of all...

Shell Programming and Scripting