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seb3579

09-14-2004 02:11 AM

bash: reading a particular line

Hi,
I am trying to write a script which takes another file and reads in a particular line of the file.

Could somebody please point me in the correct direction as to how i would go about reading the i-th line from the text file please?

Many thanks,
Seb

druuna

09-14-2004 02:17 AM

There is more then one solution to this problem, here's one using sed:

THISLINE=12
sed -n "${THISLINE}p" <filename>

This will print line number 12.

Ranges are also possible:

FIRSTLINE=12
LASTLINE=17
sed -n "${FIRSTLINE},${LASTLINE}p" <filename>

Like I said, this is just one way of doing it.

Hope this helps.

Dark_Helmet

09-14-2004 03:01 AM

Here's another using the head and tail commands:

Code:

line_number=12

target_file="./some_filename"

line_of_text=$( head -n ${line_number} ${target_file} | tail -n 1 )

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