Shell Programming and Scripting

Code:

sed '/\^volume_name:/s//^\\\\volume_name\\volume_name:/g' file

If I'm interpreting this correctly, it seems that most of the solutions presented so far are assuming that volume_name is a literal string that you want to duplicate or didn't understand that the circumflexes were literal field delimiters. I think the following sed command will do what you want even if the strings to be copied or replaced contain any of the characters on the normal shifted and unshifted keys on a US keyboard except for the ^ and : characters. Rather than using the normal slash character as the search pattern delimiter and substitute and replacement string delimiters, it uses the alert character as the delimiter (the character you get by pressing the control key and the g key at the same time). As an example, if you give this script:

Code:

sed '\^G[.^.]\([^:]*\):[^^]*[.^.]^Gs^G^G^\\\\\1\\\1^^G' in > out

(where the ^G sequences in the script are alert characters)
an input file named in containing:

Code:

OWNER1^volume_name1:\Volume_name1^LONG1^[Supervisor1]^End1
OWNER2^volume_name2:\Volume_name1\folder2^LONG2^[Supervisor2]^End2
OWNER3^abc~`!@#$%&*()_-+={}|[]\;"'<>?,./DEF:\f1\f2\f3^LONG3^[Supervisor3]^End3

it will produce the output in a file named out containing:

Code:

OWNER1^\\volume_name1\volume_name1^LONG1^[Supervisor1]^End1
OWNER2^\\volume_name2\volume_name2^LONG2^[Supervisor2]^End2
OWNER3^\\abc~`!@#$%&*()_-+={}|[]\;"'<>?,./DEF\abc~`!@#$%&*()_-+={}|[]\;"'<>?,./DEF^LONG3^[Supervisor3]^End3

Since the sed script above will not survive cut and paste operations, here is a printf command that will produce the sed statement above:

Code:

printf "sed '\\\\\a[.^.]\\\\([^:]*\\\\):[^^]*[.^.]\as\a\a^\\\\\\\\\\\\\\\\\\\\1\\\\\\\\\\\\1^\a' in > out\n"

Good luck and happy new year.