Inserting text to a file with Sed within Bash Script
- by neversaint
I tried to insert a text to the first line
of a file using sed. I do this inside a bash
script.
But why it hangs at the line of sed execution?
#! /bin/bash
# Command to execute
# ./mybashcode.sh test.nbq
nbqfile=$1
nbqbase=$(basename $nbqfile nbq)
taglistfiletemp="${nbqbase}taglist_temp"
taglistfile="${nbqbase}taglist"
./myccode $nbqfile |
sort |
uniq -c |
awk '{print $2}' > $taglistfiletemp
noftags=$(wc -l $taglistfiletemp | awk '{print $1}')
echo $noftags
# We want to append output of noftags
# to the first line of taglistfile
sed '1i\
$noftags' > $taglistfile
# why it hangs here
# the content of taglistfile is NIL
