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Top Forums UNIX for Dummies Questions & Answers How to convert a comma delimited string to records or lines of text? Post 302923876 by newbie_01 on Wednesday 5th of November 2014 01:25:38 AM
Old 11-05-2014
How to convert a comma delimited string to records or lines of text?

Hi,

I am not sure if I've posted this question before.

Anyway, I previously asked about converting lines of text into a comma delimited string. Now I am needing to do the other way around ... Smilie Smilie

Can anyone advise how is this possible?

Example as below:

Converting records/lines to a single delimited string

Code:
$ cat /tmp/x.txt
user1
user2
user3
user4
$ cat /tmp/x.txt | awk 'NR == 1 {printf "%s", $0; next} {printf ",%s", $0} END {print ""}'
user1,user2,user3,user4

$

Now I need to read a comma delimited string and convert it into records. So reading the string

Code:
user1,user2,user3,user4

And making it into something like below sorted accordingly.

Code:
user1
user2
user3
user4


I then compare this with another list of records and check for differences Smilie

Advise much appreciated. Thanks in advance.
 

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VCF-ISEC(1)							   User Commands						       VCF-ISEC(1)

NAME
vcf-isec - create intersections, unions, complements on bgzipped and tabix indexed VCF or tab-delimited files SYNOPSIS
vcf-isec [OPTIONS] file1.vcf file2.vcf ... DESCRIPTION
About: Create intersections, unions, complements on bgzipped and tabix indexed VCF or tab-delimited files. Note that lines from all files can be intermixed together on the output, which can yield unexpected results. OPTIONS
-C, --chromosomes <list|file> Process the given chromosomes (comma-separated list or one chromosome per line in a file). -c, --complement Output positions present in the first file but missing from the other files. -d, --debug Debugging information -f, --force Continue even if the script complains about differing columns. -o, --one-file-only Print only entries from the left-most file. Without -o, all unique positions will be printed. -n, --nfiles [+-=]<int> Output positions present in this many (=), this many or more (+), or this many or fewer (-) files. -p, --prefix <path> If present, multiple files will be created with all possible isec combinations. (Suitable for Venn Diagram analysis.) -t, --tab <chr:pos:file> Tab-delimited file with indexes of chromosome and position columns. (1-based indexes) -w, --win <int> In repetitive sequences, the same indel can be called at different positions. Consider records this far apart as matching (be it a SNP or an indel). -h, -?, --help This help message. EXAMPLES
bgzip file.vcf; tabix -p vcf file.vcf.gz bgzip file.tab; tabix -s 1 -b 2 -e 2 file.tab.gz vcf-isec 0.1.5 July 2011 VCF-ISEC(1)
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