gistfile1.txt

reedm@www:~/tmp $ ls -ld .
drwx------ 2 reedm reedm 4096 Feb  4 14:54 ./
reedm@www:~/tmp $ cat > foo
This is a file
reedm@www:~/tmp $ chmod -w foo
reedm@www:~/tmp $ mv foo bar
reedm@www:~/tmp $ ls -la
total 12
drwx------  2 reedm reedm 4096 Feb  4 14:54 ./
drwx-----x 54 reedm reedm 4096 Feb  4 10:18 ../
-r--r--r--  1 reedm reedm   15 Feb  4 14:54 bar
reedm@www:~/tmp $ cat bar
This is a file
reedm@www:~/tmp $ rm -f bar
reedm@www:~/tmp $ ls
reedm@www:~/tmp $ cat > foo
This is a file
reedm@www:~/tmp $ chmod -w foo
reedm@www:~/tmp $ chmod -w .
reedm@www:~/tmp $ rm -f foo
rm: cannot remove `foo': Permission denied
reedm@www:~/tmp $ mv foo bar
mv: cannot move `foo' to `bar': Permission denied
reedm@www:~/tmp $ ls -la
total 12
dr-x------  2 reedm reedm 4096 Feb  4 14:55 ./
drwx-----x 54 reedm reedm 4096 Feb  4 10:18 ../
-r--r--r--  1 reedm reedm   15 Feb  4 14:55 foo