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clean disp? (y/n)y
mv: cannot stat '*jpg': No such file or directory
mv: cannot stat '*jpeg': No such file or directory
mv: cannot stat '*JPG': No such file or directory
mv: cannot stat '*png': No such file or directory
+ cd /media/hd0/qw/upload
+ tail -1
+ grep png$
+ ls -t
+ a=A83ADD76-E71C-42EA-AB37-68067BD6BE93.png
+ [ -z  ]
+ qiv A83ADD76-E71C-42EA-AB37-68067BD6BE93.png
+ echo A83ADD76-E71C-42EA-AB37-68067BD6BE93.png
A83ADD76-E71C-42EA-AB37-68067BD6BE93.png
+ touch_or_not
+ read -p touch it? (y/n) answer
touch it? (y/n)y
+ [ y = y ]
+ touch A83ADD76-E71C-42EA-AB37-68067BD6BE93.png
+ set +x
png
    262     262    7866
jpg
    625     626   13403
jpeg
     14      14     314
JPG
    845     845   11745


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