Extract characters from a string name

Hi All,

I am trying to extract only characters from a string value eg:

abcdedg1234.cnf

How can I extract only characters

abcdedg

and assign to a variable.
Please help.

Thanks

Hello abhi_123,

Please use CODE TAGS as per forum rules for your sample Input_file and sample output_file, following may help you in same.

val="abcdedg1234.cnf"
echo "$val" |  awk '{match($0,/[a-zA-Z]+/);print substr($0,RSTART,RLENGTH)}'

To keep above into a variable and print it's value do following.

var=$(echo "$val" |  awk '{match($0,/[a-zA-Z]+/);print substr($0,RSTART,RLENGTH)}')
echo "$var"
abcdedg

Thanks,
R. Singh

Try:

var=abcdedg1234.cnf
echo "${var%%[![:alpha:]]*}"