remove first line in bash

Question

Do you have a method to quickly remove the first line of a file in bash shell ? I mean using sed or stuff like that.

Answer 1

sed:

sed -i 1d file

awk:

awk 'NR > 1' infile > outfile

line + cat:

(line >&- ; cat > outfile) < infile

bash built-ins:

while read -r; do (( i++ )) && echo "$REPLY" >> outfile; done < infile

Answer 2

$ tail -n +2 <<< $'1\n2\n3'
2
3