Reminders

sed - e 's/<[^>]*>//g' file . html

When renaming a number of files at the same time, it is more convenient to use a GUI for the job. Métamorphose is one such program that does the job brillianty, and freely. There are others Flash Renamer was another (not free) great program. However, sometimes it is fun to do the same stuff using command-line. Below are a couple of ways to do batch renaming.

The following counts the number of lines in a given file: sed -n '$=' NAP_Books.txt

The following command deletes lines which have less than 10 characters. sed '/.\{10\}/!d'

The following codes remove first 6 characters. Change the number accordingly... cut -c7- ' this works rr ^.{6} ' rr was not installed colrm 1 6 rr s/^.{6}// sed's/^.\{6\}//' perl -pe's/^.{6}//' ruby -pe'sub /^.{6}/,""' gawk'BEGIN{FIELDWIDTHS="6 999"}{print$2}'

If you need to rename a bunch of files from, for example,|add.png| to|add_32.png|, just do the following: for i in *; do j=`echo $i | cut -d . -f 1`; j=$j"_32.png"; mv $i $j; done