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Append and Prepend Text to a file list

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# 1  
Old 02-19-2009
Append and Prepend Text to a file list
I want to print out a directory listing, then append [[ to the beggining and ]] to the end of each line. I'm trying to create a list of Wiki links based on folder listings that i can just copy and paste without having to edit 100's of file listings.

Using sed i've figured out to do something like this:

sed "s/$/]]/g" documentation.txt > test.txt

How do i do the prepend? And how do i put this into one line of code that i can possibly pipe the directoryling listing to sed..

ls /documentation | sed .... etc


Thanks!

CapnDoody (Chris)
# 2  
Old 02-19-2009
Should work Smilie
Code:
ls | sed 's/^/[[/;s/$/]]/'

# 3  
Old 02-19-2009
Thank you!
Quote:
Originally Posted by danmero
Should work Smilie
Code:
ls | sed 's/^/[[/;s/$/]]/'


Dynamite!
# 4  
Old 02-19-2009
Hammer & Screwdriver doing it with awk
Code:
ls | awk '{print "[["$0"]]"}'

# 5  
Old 02-19-2009
Clarify Code
Quote:
Originally Posted by joeyg
Code:
ls | awk '{print "[["$0"]]"}'


Can you break down that code for me? What is $0 doing for us? Placeholder for each line starting at 0?

How would is use awk if i wanted to input a file and output to new file?

Code:
 awk '{print "[["$0"]]"}' firstfile.txt >> newfile.txt

Thanks! Just not really versed in awk (and by that i mean i have no idea how to use it Smilie
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