CODEWITHSUNDEEP
linuxbashshellunix
JhawarMayank
JhawarMayank

Reputation: 23

Edit all the similar files in subdirectories in linux in one shot

I have the directory structure as shown in the image below. Can there be a script written in linux which basically traverses everything under the sub directories and adds a line of text in the beginning of the file having extension as .txt

there are multiple folders but all have a file having extension .txt

enter image description here

Upvotes: 2

Views: 793

Answers (2)

sras
sras

Reputation: 838

Just in case sed -i switch is not there.

for file in `find Root -type f -name "*.txt"`; do sed '1i\
this is the line
' $file > ${file}_new; done

Upvotes: 2

Barmar
Barmar

Reputation: 782148

find Root -type f -name '*.txt' -exec sed -i '1i\
line to insert
' {} +

The find command will recurse from the Root directory, looking for filenames that match *.txt. It will then execute the sed command, which inserts a line at the beginning of the file.

Upvotes: 3

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