Question

我的脚本如下。当我们运行脚本时，它会自动将磁盘空间使用量保存在单独的单元格中。

SIZES_1=`df -h | awk 'FNR == 1 {print $1","$2","$3","$4","$5","$6}'`
SIZES_2=`df -h | awk 'FNR == 2 {print $1","$2","$3","$4","$5","$6}'`
SIZES_3=`df -h | awk 'FNR == 3 {print $1","$2","$3","$4","$5","$6}'`
SIZES_4=`df -h | awk 'FNR == 4 {print $1","$2","$3","$4","$5","$6}'`
SIZES_5=`df -h | awk 'FNR == 5 {print $1","$2","$3","$4","$5","$6}'`
SIZES_6=`df -h | awk 'FNR == 6 {print $1","$2","$3","$4","$5","$6}'`
SIZES_7=`df -h | awk 'FNR == 7 {print $1","$2","$3","$4","$5","$6}'`
SIZES_8=`df -h | awk 'FNR == 8 {print $1","$2","$3","$4","$5","$6}'`
echo `date +%Z-%Y-%m-%d_%H-%M-%S` >>/home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_1" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_2" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_3" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_4" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_5" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_6" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_7" >> /home/jeevagan/test_scripts/sizes/excel.csv
echo "$SIZES_8" >> /home/jeevagan/test_scripts/sizes/excel.csv

这个脚本适用于我的机器。

我怀疑的是，如果其他人的机器有很多文件系统，我的脚本将无法获取所有文件系统的使用情况。如何让它自动抓住所有这些？

Answer 1

假设您需要所有文件系统，您可以将其简化为：

printf '%s\n' "$(date +%Z-%Y-%m-%d_%H-%M-%S)" >> excel.csv
df -h | awk '{print $1","$2","$3","$4","$5","$6}' >> excel.csv

Answer 2

我会将其简化为

{ date +%Z-%F_%H-%M-%S; df -h | tr -s ' ' ','; } >> excel.csv

分组命令，因此只需要一次重定向
使用tr
无需echo `date`或类似：它与date
date +%Y-%m-%d与date +%F

请注意，df -h的输出的第一行有一点缺陷，看起来像这样

Filesystem          Size  Used Avail Use% Mounted on

在最后一列的标题中有一个空格，因此它变为

Filesystem,Size,Used,Avail,Use%,Mounted,on

带一个额外的逗号。然而，最初的awk解决方案只是切断了该行的最后一个字。同样，路径中的空格会使这个解决方案绊倒。

要修复逗号问题，您可以运行

sed -i 's/Mounted,on$/Mounted on/' excel.csv

现在经常发生。

另外，要替换awk中的所有字段分隔符，而不是

awk '{print $1","$2","$3","$4","$5","$6}'

你可以使用

awk 'BEGIN { OFS = "," } { $1 = $1; print }'

或更短，

awk -v OFS=',' '{$1=$1}1'

如何在shell脚本中将每日磁盘使用量导出为csv格式？

2 个答案: