Assignment Help

Hi I Am an inexperienced user of unix and have been assigned a coursework which looks at uix command and was looking to see if any experienced users could help. The following commands mut be explained:

1) sed -e 's/$/ /'

2) fold -1

3) sed -e 's/ /*/'

4) awk '{if ( $0 == "*" )printf "\n"; else printf "%s", $0;}'

5) sed -e 's/[[\](){}\!,.;:-]//g'

6) awk '{ if ( $0 == last ) { count = count + 1; } else { printf
": %d\n%s", count, $0; count = 1 }; last = $0} END { printf ": %d\n",
count }'

If any one could explain what each step would do and the entire process could they please get back to me asap, thanx for taking the time to look at this message

1) search for anything ending in $ and replace it with a period mark.
2) add an extra line to every other line.
3. search for a period and replace it with everything that comes after the period.
4) search for anything that doesn't match anything that previously occured on the last line and replace it with a newline, unless it's at the end of a line.
5) change all punctuation with bias
6) I'll leave that one to you, but the above should help you out a bit.

Have you tried consulting the man pages on each of these? Whatever happened to people doing the /own/ homework in school?

On TRU64 UNIX it does not happen.

Let us take a file which contains numbers from 1 to 10. Let us name it as "number"


Now if you give
then it gives you one chracter per line.
this will be the out put.
1
2
3

4
5
6

7
8

90