Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

linux shell substitute variable

Posted on 2013-05-14
2
Medium Priority
?
254 Views
Last Modified: 2013-05-14
I have list of tables in t.txt file, I need to substitute all the ${table} instance with the table name in t.txt file. the challenge here is after the single quote, the ${table} variable will not be substituted, like the following code, only the first ${table} will be substituted, the last two does not. How can I do this? Thanks.

for table in `cat t.txt`
do

curl -XPUT "http://localhost:9200/_river/${table}_river/_meta" -d '{
    "type" : "jdbc",
    "jdbc" : {
        "driver" : "oracle.jdbc.driver.OracleDriver",
        "url" : "jdbc:oracle:oci:@test",
        "user" : "test",
        "password" : "test",
        "sql" : "select * from ${table} where rownum<3"
    },
    "index" : {
        "index" : "database",
        "type" : "${table}"
    }
}' 

done

Open in new window

0
Comment
Question by:xiaoyunwu
2 Comments
 
LVL 85

Accepted Solution

by:
ozo earned 2000 total points
ID: 39166512
curl -XPUT "http://localhost:9200/_river/${table}_river/_meta" -d '{
    "type" : "jdbc",
    "jdbc" : {
        "driver" : "oracle.jdbc.driver.OracleDriver",
        "url" : "jdbc:oracle:oci:@test",
        "user" : "test",
        "password" : "test",
        "sql" : "select * from '${table}' where rownum<3"
    },
    "index" : {
        "index" : "database",
        "type" : "'${table}'"
    }
}'
0
 

Author Closing Comment

by:xiaoyunwu
ID: 39166537
Thank you, ozo!
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Background Still having to process all these year-end "csv" files received from all these sources (including Government entities), sometimes we have the need to examine the contents due to data error, etc... As a "Unix" shop, our only readily …
Utilizing an array to gracefully append to a list of EmailAddresses
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
Suggested Courses

571 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question