The Catechism of the Catholic Church, in its Compendium, enumerates the following five:
1.You shall attend Mass on Sundays and on holy days of obligation.
2.You shall confess your sins at least once a year.
3.You shall receive the sacrament of the Eucharist at least once during the Easter season.
4.You shall observe the days of fasting and abstinence established by the Church.
5.You shall help to provide for the needs of the Church.
The fourth Church Commandment is commonly remembered as abstinence from meat (but not fish) on Fridays (except solemnities), and abstinence plus restriction to one meal only on Ash Wednesday and Good Friday. The details are quite various, including some countries to allow for a different way of penance on at least ordinary Fridays. The whole of Lent is of penitential character, though no specified practice is required.
1.You shall attend Mass on Sundays and on holy days of obligation.
2.You shall confess your sins at least once a year.
3.You shall receive the sacrament of the Eucharist at least once during the Easter season.
4.You shall observe the days of fasting and abstinence established by the Church.
5.You shall help to provide for the needs of the Church.
The fourth Church Commandment is commonly remembered as abstinence from meat (but not fish) on Fridays (except solemnities), and abstinence plus restriction to one meal only on Ash Wednesday and Good Friday. The details are quite various, including some countries to allow for a different way of penance on at least ordinary Fridays. The whole of Lent is of penitential character, though no specified practice is required.