joey@darkstar:~>touch true
joey@darkstar:~>chmod +x true
joey@darkstar:~>ls -l true
-rwxr-xr-x 1 joey joey 0 Nov 18 10:53 true*
joey@darkstar:~>if ./true; then echo yay; fi
yay
joey@darkstar:~>touch true
joey@darkstar:~>chmod +x true
joey@darkstar:~>ls -l true
-rwxr-xr-x 1 joey joey 0 Nov 18 10:53 true*
joey@darkstar:~>if ./true; then echo yay; fi
yay
# which true
/usr/bin/which: no true in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
# true; echo $?
0