[英]How to ignore escape characters in bash script?
我正在制作bash脚本,我需要一个SQL查询,但是它具有bash的转义字符。
我想读取不带bash转义字符的SQL查询,为什么这个转义字符是MySQL的。
QUERY="SELECT department_id, description FROM departments INTO OUTFILE '/var/lib/mysql-files/departaments.csv' FIELDS TERMINATED BY ', ' ENCLOSED BY '"' LINES TERMINATED BY '\n';"
谢谢!
您可以使用
read -r -d '' query <<'EOF'
SELECT department_id, description FROM departments INTO OUTFILE '/var/lib/mysql-files/departaments.csv' FIELDS TERMINATED BY ', ' ENCLOSED BY '"' LINES TERMINATED BY '\n';
EOF
printf "%s\n" "$query"
输出
SELECT department_id, description FROM departments INTO OUTFILE '/var/lib/mysql-files/departaments.csv' FIELDS TERMINATED BY ', ' ENCLOSED BY '"' LINES TERMINATED BY '\n';
编辑 ,如果需要扩展变量,请从EOF
删除'
,例如:
outfile=/tmp/file
read -r -d '' query <<EOF
SELECT department_id, description FROM departments
INTO OUTFILE '$outfile'
FIELDS TERMINATED BY ', ' ENCLOSED BY '"' LINES TERMINATED BY '\n';
EOF
printf "%s\n" "$query"
(注意$outfile
变量)打印
SELECT department_id, description FROM departments
INTO OUTFILE '/tmp/file'
FIELDS TERMINATED BY ', ' ENCLOSED BY '"' LINES TERMINATED BY '\n';
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