sed 要定位,用 ADDRESS 行號 (也可是範圍 “起始位置, 終止位置‘),或者 /PATTERN/ 匹配,而後是編輯命令 a(append), i(insert), s(replace)
sed '/export PATH=/ a\abc' .bashrc (add whole Line)
sed 's/export PATH=/export PATH=abc:/' .bashrc insert something after pattern
sed 要定位,用 ADDRESS 行號 (也可是範圍 “起始位置, 終止位置‘),或者 /PATTERN/ 匹配,而後是編輯命令 a(append), i(insert), s(replace)
sed '/export PATH=/ a\abc' .bashrc (add whole Line)
sed 's/export PATH=/export PATH=abc:/' .bashrc insert something after pattern