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Counting number of single quotes in a string

 
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# 4  
Old 01-09-2015
Longhand using builtins only and no pipes:-
(OSX 10.7.5 default bash terminal.)
Code:
#!/bin/bash
# Ensure string is complete!
txt=$(echo \"description\":\"DevOps- Test VM\'s, System Admins Test VM\'s \",)
echo "$txt"
subtext=""
char=0
count=0
while [ $char -lt ${#txt} ]
do
	subtext=$(printf "%02X" "'${txt:$char:1}")
	if [ "$subtext" == "27" ]
	then
		count=$((count+1))
	fi
	char=$(($char+1))
done
echo "Single quote occurs $count times..."

Results:-
Code:
AMIGA:barrywalker~/Desktop/Code/Shell> ./single_quote.sh
"description":"DevOps- Test VM's, System Admins Test VM's ",
Single quote occurs 2 times...
AMIGA:barrywalker~/Desktop/Code/Shell> _

EDIT:
Modified code to remove absolute (0X)27 value...
Code:
#!/bin/bash
# Ensure string is complete!
txt=$(echo \"description\":\"DevOps- Test VM\'s, System Admins Test VM\'s \",)
echo "$txt"
subtext=""
chr=$(printf "%02X" "''")
char=0
count=0
while [ $char -lt ${#txt} ]
do
	subtext=$(printf "%02X" "'${txt:$char:1}")
	if [ "$subtext" == "$chr" ]
	then
		count=$((count+1))
	fi
	char=$(($char+1))
done
echo "Single quote occurs $count times..."

Last edited by wisecracker; 01-09-2015 at 06:11 PM..
These 2 Users Gave Thanks to wisecracker For This Post:
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