I tried to loop comma separated values with space, but not able to get the exact value since it has space in the string.
I tried in different ways, but i not able to get desired results. Can anyone help me on this
#!/bin/ksh
values="('A','sample text','Mark')"
for i in `echo $values | sed 's/[)(]//g' | sed 's/,/ /g'`
do
echo $i
done
My expected output is:
A
sample text
Mark
First, change values to an array. Then iterating over it is a simple matter.
values=(A "sample text" Mark)
for i in "${values[@]}"; do
echo "$i"
done
,. values=('A' 'sample text' 'Mark')
a=(...) is a special kind of assignment.)This is the same as Chepner's answer, only kludgier, (variable substitution), and more dangerous, (the eval...), the better to use the OP's exact $values assignment:
values="('A','sample text','Mark')"
eval values=${values//,/ }
for i in "${values[@]}"; do
echo "$i"
done
It works in ksh, but really, if at all possible try to use Chepner's simpler and safer $values assignment.
Simply trim the quotes
#!/bin/ksh
values="('A','sample text','Mark')"
echo $values | tr -d "()'\"" | tr ',' '\n'
output:
A
sample text
Mark
You should use the single quotes for splitting the string (and quote "$values").
When your sed supports \n for replacement into a line, you can do without a loop:
echo "${values}" | sed "s/[)(]//g;s/','/\n/g;s/'//g"
# or
sed "s/[)(]//g;s/','/\n/g;s/'//g" <<< "${values}"
When the values in your string are without a comma and parentheses, you can use
grep -Eo "[^',()]*" <<< "${values}"
Better is looking for fields between 2 single quotes and remove those single quotes.
grep -Eo "'[^']*'" <<< "${values}" | tr -d "'"
valuesfrom somewhere else, you should make it a regular array:values=(A "sample text" Mark). If you are getting it from somewhere else, have them send an easier-to-parse format, like JSON.