count characters

mirzasoltan · 10-24-2012, 08:19 AM

hi all,
i have a problem with my script, i want to know count a special character per line, for example in this line> 1/2/3/4/5 i want to know how many "/" is. in other way i have a text file that include just one line:

#cat mytextfile
1/2/3/4/5

i want to find a way to count how many / is in that text file.
tanx everyone.

sag47 · 10-24-2012, 08:38 AM

At first I was going to do it in awk. But then I kept it simple and used sed to strip all characters that aren't the special character you're looking for.

Code:

echo "1/2/3/4/5" | sed 's/[^/]//g' | wc -m

druuna · 10-24-2012, 08:48 AM

Using grep and wc:

Code:

grep -o "/" mytextfile | wc -l

Code:

$ cat mytextfile
1/2/3/4/5
$ grep -o "/" mytextfile | wc -l
4

mirzasoltan · 10-24-2012, 09:55 AM

Quote:

Originally Posted by sag47

At first I was going to do it in awk. But then I kept it simple and used sed to strip all characters that aren't the special character you're looking for.

Code:

echo "1/2/3/4/5" | sed 's/[^/]//g' | wc -m

tanx for the answer, but i find a better way,

cat mytextfile | tr -cd "/" | wc -c

mirzasoltan · 10-24-2012, 09:57 AM

Quote:

Originally Posted by druuna

Using grep and wc:

Code:

grep -o "/" mytextfile | wc -l

Code:

$ cat mytextfile
1/2/3/4/5
$ grep -o "/" mytextfile | wc -l
4

tanx, your way is useful too.

grail · 10-24-2012, 10:15 AM

Code:

awk -F/ '{print NF-1}' file