remove first line in bash
Solution 1:
One-liners in reverse order of length, portable unless noted.
sed (needs GNU sed for -i):
sed -i 1d file
ed (needs e.g. bash for $'...' expansion and here string):
ed file <<< $'1d\nw\nq'
awk:
awk NR\>1 infile > outfile
tail:
tail -n +2 infile > outfile
read + cat:
(read x; cat > outfile) < infile
bash built-ins:
while IFS= read -r; do ((i++)) && printf %s\\n "$REPLY" >> outfile; done < infile
Solution 2:
$ tail -n +2 <<< $'1\n2\n3'
2
3