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sbh7600's questions

Martin Hope
sbh7600
Asked: 2020-04-20 02:22:52 +0800 CST
  • 5

我在 crontab 中有一个 mysqldump 行，但它不起作用，它只生成 0 个字节的文件：

0 0 * * *  mysqldump -u 'USERNAME' -p'PASSWORD' database| gzip -c > /mysqldumb/backupfile.`date +\%a`.sql.gz >/dev/null 2>&1
linux mysql
Martin Hope
sbh7600
Asked: 2019-12-05 10:49:51 +0800 CST
  • 5

我对颜色有一些问题。它在一条线上工作正常，但在另一条线上却不行 2

 echo "  \e[35mWeather.......:\e[0m `echo "\e[36m$weather\e[0m" | head -1`"
    echo "  \e[35mToday.........:\e[0m `echo "\e[36m$weather\e[0m" | head -2 | tail -1`"
    echo "  \e[35mTomorrow......:\e[0m `echo "\e[36m$weather\e[0m" | tail -1`"

在此处输入图像描述

bash colors
Martin Hope
sbh7600
Asked: 2019-12-03 15:53:33 +0800 CST
  • 5

我试图获取一个登录脚本来显示度数符号，但它不显示它。

Here is the weather.sh
METRIC="1"  # 0 for F, 1 for C
# Fill in form to find your weather code here:
# http://netweather.accuweather.com/signup-page2.asp
# If code has a space remove it or replace it with %20 or a dash; -
LOCCOD="struer"  #Example: NAM|MX|MX009|MEXICO-CITY

if [ "$weather" != "0" ] ; then
  weather=`curl -s http://rss.accuweather.com/rss/liveweather_rss.asp\?metric\=${METRIC}\&locCode\=$LOCCOD \
  | grep -E '<description>(Currently|High)' \
  | sed -e 's/.*<description>\(.*\)/\1/' -e 's/\(.*\) &lt.*/\1/' -e 's/\(&#38;#176;\)//'`
  if [ "`echo "$weather" | wc -l`" -eq "3" ] ; then
    echo "Weather......: `echo "$weather" | head -1`"
    echo "Today........: `echo "$weather" | head -2 | tail -1`"
    echo "Tomorrow.....: `echo "$weather" | tail -1`"
  fi
fi

但是当我登录时它只显示：&#176;C

但如果我这样做：echo $'\xc2\xb0'C在腻子中，它显示正常吗？

什么给了，我该如何解决？

bash sh