Problem to use check_oracle

[Dani Rodriguez]

I am doing a final career project but i'm having problems .
I am triying run the next command './check_oracle --tablespace asir
nagios/nagios USERS 95 90
'
 Where
SID is "ASIR"
User "nagios"
Password "nagios"
Tablespace "USERS"
And the limit that I have chosen are warning "90" and critical "95".

But.. when i run it the output is:

 [root at localhost plugins]# ./check_oracle --tablespace asir nagios/nagios
USERS 95 90
./check_oracle: línea 260: [: : se esperaba una expresión entera
./check_oracle: línea 287: [: : se esperaba una expresión entera
./check_oracle: línea 291: [: : se esperaba una expresión entera
./check_oracle: línea 295: [: : se esperaba una expresión entera
asir : 95 OK - % used [  /  MB available ]|95=%;;90;0;100
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