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Merging strings that have identical rownames in a dataframe

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Operating Systems Linux Ubuntu Merging strings that have identical rownames in a dataframe
# 1  
Old 01-08-2014
Merging strings that have identical rownames in a dataframe
Hi

I have a data frame with repeated names in column 1, and different descriptors in column 2. I want to merge/cat strings that have same entry in column 1 into one row with any separator.

Example for input:

Code:
Cvel_1        KOG0155
Cvel_1        KOG0306
Cvel_1        KOG3259
Cvel_1        KOG0931
Cvel_1        KOG3638
Cvel_1        KOG0956

Example for desired output:

HTML Code:
Cvel_1 KOG0155, KOG0306, KOG3259, KOG0931, KOG0956
Thanks a lot
Alyaa
# 2  
Old 01-08-2014
try

Code:
$ cat file
Cvel_1        KOG0155
Cvel_1        KOG0306
Cvel_1        KOG3259
Cvel_1        KOG0931
Cvel_1        KOG3638
Cvel_1        KOG0956

$ awk '{A[$1]=A[$1]?A[$1] ", " $NF :$1 " "$NF}END{for (i in A)print A[i]}' file
Cvel_1 KOG0155, KOG0306, KOG3259, KOG0931, KOG3638, KOG0956

# 3  
Old 01-08-2014
Thank you Pamu very much, it works just fine

However, when I try the same command for sth like this:
Code:
"Cvel_1"    " Transcription factor CA150 "
"Cvel_1"    " WD40-repeat-containing subunit of the 18S rRNA processing complex "
"Cvel_1"    " Peptidyl-prolyl cis-trans isomerase "
"Cvel_1"    " Predicted guanine nucleotide exchange factor, contains Sec7 domain "

the output is:
Code:
"Cvel_1"  ";";";"

your help and prompt response are much appreciated
thank you
# 4  
Old 01-08-2014
try
Code:
awk -F "\t" '{A[$1]=A[$1]?A[$1] ", " $NF :$1 " "$NF}END{for (i in A)print A[i]}' file

# 5  
Old 01-08-2014
Thank you VERY much
Perfectly fine
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