sed trouble in bash script

[conradin]

Hi all,
I want to bring up a line of text one line at a time, I thought, and easy enough task for sed. The wc bit makes the count whatever the number of lines is.
I get the error:"sed: -e expression #1, char 3: unknown command: `.'"
also, how can I separate the variable "i" from the sed argument "p"? I am wondering if a space or lack of space is causing the issue. Ive tried both, neither work.

Can someone point out how to fix this?
But I get an error, I cant seem to figure out.


#!/bin/bash
set -vx
sometime=5
length=`wc -l someFile | grep -o *[0-9]`

for i in {1..$length..1}
do
sed -n $ip someFile
sleep $sometime
done

[Bachstelze]

For your last question, you can use quotes:


firas@aoba:~$ i=foo
firas@aoba:~$ echo "$i"p
foop

[sisco311]

Check out BashFAQ 001, 082, 011 and http://mywiki.wooledge.org/BraceExpansion




while read -r line
do
printf '%s\n' "$line"
sleep 5
done < filename

[conradin]

Thanks sisco! That helps!