我正在尝试逐行读取包含由句点分隔的字段的输入文件。 我想将它们放入数组数组中,以便稍后循环遍历它们。输入似乎没问题,但将其“推送”到数组 (inData) 似乎不起作用。
代码如下:
Input file:
GSDB.GOSALESDW_DIST_INVENTORY_FACT.MONTH_KEY
GSDB.GOSALESDW_DIST_INVENTORY_FACT.ORGANIZATION_KEY
infile=${1}
OIFS=$IFS
IFS=":"
cat ${infile} | while read line
do
line=${line//\./:}
inarray=(${line})
# echo ${inarray[@]}
# echo ${#inarray[@]}
# echo ${inarray[0]}
# echo ${inarray[1]}
# echo ${inarray[2]}
inData=("${inData[@]}" "${inarray[@]}")
done
IFS=$OIFS
echo ${#inData[@]}
for ((i = 0; i < ${#inData[@]}; i++))
do
echo $i
for ((j = 0; j < ${#inData[$i][@]}; j++))
do
echo ${inData[$i][$j]}
done
done
最佳答案
bash 中的字段嵌套框但是无法绕过看例子。
#!/bin/bash
# requires bash 4 or later; on macOS, /bin/bash is version 3.x,
# so need to install bash 4 or 5 using e.g. https://brew.sh
declare -a pages
pages[0]='domain.de;de;https'
pages[1]='domain.fr;fr;http'
for page in "${pages[@]}"
do
# turn e.g. 'domain.de;de;https' into
# array ['domain.de', 'de', 'https']
IFS=";" read -r -a arr <<< "${page}"
site="${arr[0]}"
lang="${arr[1]}"
prot="${arr[2]}"
echo "site : ${site}"
echo "lang : ${lang}"
echo "prot : ${prot}"
echo
done
关于arrays - bash 中的数组数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12317483/