Test multiple file conditions in one swoop (BASH)?

Question

Often when writing for the bash shell, one needs to test if a file (or Directory) exists (or doesn\'t exist) and take appropriate action. Most common amongst these test are

Answer 1

You can use logical operators to multiple conditions, e.g. -a for AND:

MYFILE=/tmp/data.bin
if [ -f "$MYFILE"  -a  -r "$MYFILE"  -a  -w "$MYFILE" ]; then
    #do stuff
fi
unset MYFILE