It looks like postmap can read stdin when getting a list of keys for delete or query. There appeared to be no documented way to read from stdin to create a new map. So I tried the following:
======================================================================== marconi/root/x0 /root 37# ls -dl foobar* ls: cannot access foobar*: No such file or directory marconi/root/x0 /root 38# ln -s /dev/stdin foobar marconi/root/x0 /root 39# ( echo one foo ; echo two bar ) | postmap cdb:foobar marconi/root/x0 /root 40# ls -dl foobar* lrwxrwxrwx 1 root root 10 2010-06-03 14:46 foobar -> /dev/stdin -rw-r--r-- 1 root root 2108 2010-06-03 14:47 foobar.cdb marconi/root/x0 /root 41# postmap -q one cdb:foobar foo marconi/root/x0 /root 42# postmap -q two cdb:foobar bar marconi/root/x0 /root 43# ======================================================================== That obviously seems to work. Anyone know of any reason not to do it this way (like maybe in the future it will refuse to run if the named file isn't directly a regular file)?
