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格式问题

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格式问题

我有一个如下所示的小脚本，如果出现问题，输出会在屏幕上突出显示（以红色、黄色等显示）

normal=$(tput sgr0)
red=$(tput setaf 1)
yellow=$(tput setaf 3)

df -h >/dev/null 2>&1 &
xx_pid=$!
sleep 3
if [ `ps -ef| grep $xx_pid | grep -v grep | wc -l` -gt 0 ]; then
kill $xx_pid > /dev/null 2>&1
 printf "%-70s %s\n" "${red}df -h response : "  "  ......... taking more  than 30 Seconds to complete, exiting script${normal}" | tee -a $log
 exit
else
 printf "%-70s %s\n" "df -h response : "  " ......... NORMAL (Completed in  less than 30sec)" | tee -a $log
 fi

但在日志文件中我看到如下垃圾字符（[31m 和 (B[m )

[31mdf -h response :                    ......... taking more than 30 Seconds to complete, exiting script(B[m

有什么方法可以避免这些垃圾字符而不写入日志文件。

答案1

无需使用tee：您可以将消息分配给变量并printf 那使用颜色，以及然后将消息附加到日志文件：

 msg=$(printf "%-70s %s" "df -h response : "  " ......... NORMAL (Completed in >
 printf "%s%s%s\n" "${red}" "$msg" "${normal}"
 printf "%s\n" "$msg" >>$log

而不是

 printf "%-70s %s\n" "${red}df -h response : "  "  ......... taking more  than 30 Seconds to complete, exiting script${normal}" | tee -a $log

问题是tee它只能写入标准输出。你可以对你的脚本做一些事情来单独重定向标准输出，但这很麻烦：

 ( printf "%-70s %s\n" "df -h response : "  "  ......... taking more  than 30 Seconds to complete, exiting script" | tee -a $log ) | sed -e "s/^/${red}/" -e "s/$/${normal}/"

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