[英]Why isn't this awk command working
So the question is:所以问题是:
Display all of the lines in the file showing only the quantity and product name, in that order, using awk.使用 awk 按顺序显示文件中仅显示数量和产品名称的所有行。 Product name is the first field and quantity is the second field.
产品名称是第一个字段,数量是第二个字段。 The data file is "inventory"
数据文件是“库存”
The contents to inventory:盘点内容:
Strawberry Jam,300,4
Raspberry Jam,1216,7
Blueberry Jam,96,195
Strawberry Compote,49,621
Raspberry Compote,1937,624
Blueberry Compote,200,625
Frozen Strawberries,130,1941
Straw Hats,16,2047
My command was我的命令是
awk '$2 $1' inventory
That should work right?那应该行得通吗? I also tried like
我也试过
awk '{print $2 $1}' inventory
awk '$2, $1' inventory
and a lot of variations of that, but none works!以及很多变体,但没有一个有效! Can anyone help figure out why?
任何人都可以帮助找出原因吗?
That is a csv
(comma seperated values) file so the field separator
needs to be specified as ,
using the -F
option.这是一个
csv
(逗号分隔值)文件,使field separator
中指定的需求为,
使用-F
选项。
$ awk -F, '{print $2,$1}' inventory
300 Strawberry Jam
1216 Raspberry Jam
96 Blueberry Jam
49 Strawberry Compote
1937 Raspberry Compote
200 Blueberry Compote
130 Frozen Strawberries
16 Straw Hats
开始了:
awk 'BEGIN{FS=OFS=","} {print $2, $1}' inventory
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