extract colname

bioinfonext

3/13/24, 8:47 PM

I need to get colnames but just want one colname in each line so could you please help how to change below command.

head -n 1 betas_1.csv >col.names

3 + 0

command-line

text-processing

Score:1

Ubuntu

Tom Chiverton

3/13/24, 9:01 PM

head -n 1 betas_1.csv | sed 's/,/\n/g'

+ 1

Tom Chiverton

3/13/24, 10:30 PM

you didn't provide an example .csv file so I had to guess... edited.

Score:1

Ubuntu

Saxtheowl

3/13/24, 9:00 PM

If you want one column per line you can use awk, it can split the column names by commas, here the command for what you want:

head -n 1 betas_1.csv | awk -F ',' '{for(i=1; i<=NF; i++) print $i}' > col.names

+ 0

Score:0

Ubuntu

steeldriver

3/13/24, 10:04 PM

Any of:

head -n 1 betas_1.csv | tr ',' '\n' >col.names

sed 's/,/\n/g;q' betas_1.csv >col.names

awk -F, 'BEGIN{OFS="\n"} {$1=$1; print; exit}' betas_1.csv >col.names

perl -F, -ne 'print join "\n", @F; last' betas_1.csv >col.names

or (using the python-based csvkit)

csvstat --names betas_1.csv >col.names

(although this includes a column index by default).

+ 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: extract colname

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