shell腳本之-向文件中寫入數據

#!/bin/sh

#https://zhidao.baidu.com/question/262951766.html

#https://blog.csdn.net/roadmore/article/details/90546407   https://blog.csdn.net/jk110333/article/details/8590746/

if [$# -eq 0]; then

　　mode='upgrade'

else 

　　mode=$1

fi

mydir=$(dirname "$0")

cd $mydir

CURRENT_DIR='pwd'

version_dir="/home/example"

version_info=‘shellscript_excrise_01’

devicename='echo "${HOSTNAME}"'

strdevip='su - usera -c "cmd | grep ipaddress|head -n 1"'

deviceip ='echo ${strdevip} | awk -F "=" '/ipaddress/ {print $2}' | tr -d' '

updatetime='date + "%Y.%m.%d %T" '

versionflow_list

if ["$mode"=="upgrade"]; then

　　sed -i "/$verdionflow_dir/d" ${versionflow_list}

　　echo "${devicename},${deviceip},${versioninfo},${updatetime}">>${versionflow_list}

elif

fi

exit 0