Trying to write shell script under Linux

Question

I have a file which contains data like this:

1;2;3
4;5;6
7;8;9
....
n

where n is a random numer of lines. I'm trying to get from this file something like this:

command_1_command_2_command_3
command_4_command_5_command_6
....
n

Any suggestions how can I achieve this?

Looks easy to do with awk. Give it a try, and post what you have if you can't get it working. — Barmar
– Barmar, Commented Sep 11, 2014 at 17:48
Does the file really contain bullets at the beginning of each line? — Barmar
– Barmar, Commented Sep 11, 2014 at 17:50
Of course not. I had problems with text formatting - now It's correct :) — NRG
– NRG, Commented Sep 11, 2014 at 17:51
It should also be simple using sed. Replace the beginning of the line with command_, and replace ; with _command_. — Barmar
– Barmar, Commented Sep 11, 2014 at 17:52

Nachiket Kate · Accepted Answer · 2014-09-11 18:15:13Z

3

try this,

awk 'BEGIN {FS=";"}; {$1="command_"$1;$2="command_"$2;$3="command_"$3;print $1"_"$2"_"$3}' stacko.txt

nachiket@nachiket-X550LD:~$ cat stacko.txt 
1;2;3
4;5;6
7;8;9
nachiket@nachiket-X550LD:~$ awk 'BEGIN {FS=";"}; {$1="command_"$1;$2="command_"$2;$3="command_"$3;print $1"_"$2"_"$3}' stacko.txt 
command_1_command_2_command_3
command_4_command_5_command_6
command_7_command_8_command_9
nachiket@nachiket-X550LD:~$

answered Sep 11, 2014 at 18:15

Nachiket Kate

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