Shell script

Shell Programming and Scripting
1

How to break a string into words & store the words in separate variables
like
name1="aaa"
name2="abcd"
name..
.
.
using shell script?

2

See this post on substring and search the forums for other examples.

3 
bash:
  file=/dir1/dir2/dir3/my.file.txt
${file#*/}        #dir1/dir2/dir3/my.file.txt
${file##*/}      #my.file.txt
${file#*.}         #file.txt 
${file##*.}       #txt 
${file%/*}        #/dir1/dir2/dir3 
${file%.*}        #/dir1/dir2/dir3/my.file 
${file%%.*}      #/dir1/dir2/dir3/my 
${file:1:4}        #dir1

Cheers, try yourself.

4

Bash...

$ phrase="aaa bbb ..."
$ arr=($phrase)
$ echo ${arr[0]}
aaa
$ echo ${arr[1]}
bbb
$ echo ${#arr[*]}
3