Shell Script: Different Method to Find Out Number of Characters in a String

advertisements

_____________________________________________________________________________________________________________________

To count total number of characters in a string

Count total number of

$ mystring="This is my test string"

$ echo "${#mystring}"

$ expr length "$mystring"

$ echo $mystring|awk '{print length}'

$ len=`echo $mystring | wc -c`;echo `expr $len - 1`

To count specific characters in sting.

$ grep -o "[s|S]" <<<"$mystring" | wc -l

$ grep -o "[ ]" <<<"$mystring" | wc -l

$ grep -o "[T|i]" <<<"$mystring" | wc -l

$ grep -o "[s|i]" <<<"$mystring" | wc -l

_____________________________________________________________________________________________________________________

A visitor from Ashburn viewed 'Create Synonym Failed with ORA-01471: cannot creat' 1 hr 48 mins ago

A visitor from Dublin viewed 'Script to Analyze All Schema Tables and Indexes in' 3 hrs 19 mins ago

A visitor from Plymouth viewed 'Shell Script to Run RMAN Backup in Background with' 3 hrs 28 mins ago

Archive