Linux脚本——sed字段替换和get_char()暂停函数的使用

#!/bin/bash

# 暂停函数，用于人为介入判断
get_char()
{
  SAVEDSTTY=`stty -g`
  stty -echo
  stty cbreak
  dd if=/dev/tty bs=1 count=1 2> /dev/null
  stty -raw
  stty echo
  stty $SAVEDSTTY
}



# echo "     Hello, the world is very beautiful!       " > sed_test.txt
echo  "     Hello, the world is very beautiful!       " >> ./logs/sed_test.txt


# 替换文本中的字符串
# sed -i "s/Hello, the world is very beautiful!/Hell0, the w0rld is very beautiful!/g" ./sed_test.txt

# 替换每行中的空格为空
sed 's/ //g' ./logs/sed_test.txt >> ./logs/sed_result.txt

echo . >> ./logs/sed_result.txt

char=`get_char`

rm -rf ./logs/sed_test.txt