This command will import all the MySQL sql dumps in the current folder. You can use this to restore your backuped databases.

for i in *; do mysql -uroot `basename $i .sql` < $i;  done

Use this command to download numbered content…

for ((i=1; i<9; i++)) ; do  wget "http://www.example.com/$i.txt" ; done

This is how you zero pad a numerical variable in bash.

for ((x=1;x<=31;x+=1)); do echo `printf "%02d" $x`; done

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