从第3行开始，一共显示5行。即显示3~8行
cat bblayers.conf | tail -n +3 | head -n 5
1 etouch@etouch-T410:~/work-hanrp/rcarm3/linux/Renesas/build/conf$ cat bblayers.conf 2 # POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf 3 # changes incompatibly 4 POKY_BBLAYERS_CONF_VERSION = "2" 5 6 BBPATH = "${TOPDIR}" 7 BBFILES ?= "" 8 9 BBLAYERS ?= " 10 ${TOPDIR}/../poky/meta 11 ${TOPDIR}/../poky/meta-poky 12 ${TOPDIR}/../poky/meta-yocto-bsp 13 ${TOPDIR}/../meta-renesas/meta-rcar-gen3 14 ${TOPDIR}/../meta-openembedded/meta-oe 15 ${TOPDIR}/../meta-linaro/meta-optee 16 " 17 etouch@etouch-T410:~/work-hanrp/rcarm3/linux/Renesas/build/conf$ cat bblayers.conf | tail -n +3 | head -n 5 18 POKY_BBLAYERS_CONF_VERSION = "2" 19 20 BBPATH = "${TOPDIR}" 21 BBFILES ?= "" 22 23 etouch@etouch-T410:~/work-hanrp/rcarm3/linux/Renesas/build/conf$
分解：
tail -n 1000：显示最后1000行
tail -n +1000：从1000行开始显示，显示1000行以后的
head -n 1000：显示前面1000行
参考：https://www.cnblogs.com/suanec/p/5881463.html