pgas 1400847897 learn # http://wooledge.org/mywiki.wooledge.org-$(date +%Y%m01).tar.bz2
pgas 1400847916 forget
pgas 1400847927 learn # echo wget http://wooledge.org/mywiki.wooledge.org-$(date +%Y%m01).tar.bz2
geirha 1452982055 forget
geirha 1452982059 learn # printf 'wget http://wooledge.org/mywiki.wooledge.org-%(%Y%m)T01.tar.bz2\n'