不能在awk命令中使用“[”符号

Question

I can not use "[" symbol in awk command. 我不能在awk命令中使用“[”符号。 Please see below 请看下面

awk -F 'CDATA[|PSCRI' '{for (i=2; i<=NF; i+=2) print $i}' <<< ${y[0]}

Throws: 抛出：

awk: fatal: Unmatched [ or [^: /CDATA[|PSCRI/

I have also tried "\\" to skip, its not working 我也试过“\\”跳过，它不起作用

awk -F 'CDATA\[|PSCRI' '{for (i=2; i<=NF; i+=2) print $i}' <<< ${y[0]}

Throws: 抛出：

awk: warning: escape sequence `\[' treated as plain `['
awk: fatal: Unmatched [ or [^: /CDATA[|PSCRI/

Answer 1

try: 尝试：

awk -F 'CDATA\\[|PSCRI' '{for (i=2; i<=NF; i+=2) print $i}' <<< ${y[0]}

example: 例：

kent$ (master|✔) echo "bbb[fooaaa"|awk -F '\\[foo' '$1=$1'
bbb aaa