linux - Escape double quote inside a single quote - 


for x in $(cat raw_tables.txt) echo '{     "type" : "jdbc",     "jdbc" : {         "url" : "jdbc:mysql://localhost:3306/test",         "user" : "root",         "password" : "<pass>",         "sql" : "select * "'$x'"",         "elasticsearch" {                 "cluster" : "search",                 "host": "<ip>",                 "port": 9300         },         "index" : ""'$x'"",         "type": ""'$x'""      } }' | java \    -cp "/etc/elasticsearch/elasticsearch-jdbc-2.3.3.1/lib/*" \    -dlog4j.configurationfile=/etc/elasticsearch/elasticsearch-jdbc-2.3.3.1/bin/log4j2.xml \    org.xbib.tools.runner \    org.xbib.tools.jdbcimporter   cat raw_tables.txt table1 table2 table3

when run comes out

"index" : ""$x"",

i need come out "index" : "$x", can't bypass double quote it's producing , if try escaping entire thing single quote script thinks it's stopped.

i've tried everything.. appreciated

thank you!

use here-document, way don't have care quoting (in case, since document doesn't need contain backticks or dollar signs):

while read x;   java ... lots of options \     more options java \     , more options java  <<end_doc {     "type" : "jdbc",     "jdbc" : {         "url" : "jdbc:mysql://localhost:3306/test",         "user" : "root",         "password" : "<pass>",         "sql" : "select * $x",         "elasticsearch" {                 "cluster" : "search",                 "host": "<ip>",                 "port": 9300         },         "index" : "$x",         "type": "$x"      } } end_doc done <raw_tables.txt

the end marker (end_doc in case) needs flush left, no indentation.


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