Answer:
sed '/march/{d;}' birthdays.txt > result
.txt
Explanation:
sed syntax is basically:
<em>sed '/expression/{command;command;...;}' inputfile > outputfile</em>
- First, for the expression part, we use /march/ to match all lines containing that string.
- Then for the command part, we only use {d} command to delete every matching line found.
- The third part contains the input file to process, I have named it birthdays.txt, but it could have been any other file needed.
- Finally "> result
.txt" makes the script output to be saved into a file named result.txt
By being willing to communicate and troubleshoot.
Answer:
Programmable.
Explanation:
Programmable locks can be changed after they are put in service, allowing for combination or key changes without a locksmith and even allowing the owner to change to another access method (key or combination) to upgrade security. This type of lock are operated using a programmable plastic card and are typically smart.
Answer:
E-publishing is also known as digital publishing or online publishing.It means to publish the content in electronic form.It is growing rapidly.It consist digital publication of e-books,digital magazines that can be read on a screen.
<u>Explanation:</u>E-publishing is very convenient.We do not have to keep large number of books on the shelves.E-books are best during travelling because we need not to carry heavy luggage of books.E-books are cheaper than paperbacks.
E-publishing can allow the authors to reach large number of readers.Electronic contents are very well updated.Electronic books are environment friendly.It saves wastage of papers and hence cutting of trees.
Besides above advantages there are some disadvantages of E-publishing:
There are more responsibilities in E-publishing.Chances of copyright infringement can be there.
Profits are very low in case of e-publishing.It is not easy to earn money through this method.
Quality of printed books is much better than e-books.
So we can say that e-publishing has it's own advantages and disadvantages.
