从具有多列的文件循环-BASH

Question

i have following text file (output.txt)

TECH-746 TECH 10400
TECH-747 TECH 10400

i need to read all columns and pass it to 3 variables and then submit it to curl command. While read simple won't work with curl (don't know why) so i need to use for loop (it works with curl), can i use one for loop or need to nest multiple ones

for project in `cat output.txt`; do
echo $project
curl -D- -u user:pass -X POST --data "{\"fields\":{\"project\":{\"key\":\"TECH\"},\"parent\":{\"key\":\"$project\"},\"summary\":\"test",\"description\":\"test.\",\"issuetype\":{\"name\":\"Sub-task\"}}}" -H "Content-Type:application/json" --silent https://jira.company.com/rest/api/latest/issue/ >/dev/null

code above works, so i just want to "extend" to to include all other columns in file

Answer 1

while read can pull a line into distinct variables.

while read project col2 col3
do
  curl -D- -u user:pass -X POST --data "{\"fields\":{\"project\":{\"key\":\"TECH\"},\"parent\":{\"key\":\"$project\"},\"summary\":\"test",\"description\":\"test.\",\"issuetype\":{\"name\":\"Sub-task\"}}}" -H "Content-Type:application/json" --silent https://jira.company.com/rest/api/latest/issue/ >/dev/null
done < sourcefile.txt

EDIT: The curl command also misses escaping one quote, compare the two lines below, the first one is the original, the second one is the one I've corrected.

curl -D- -u user:pass -X POST --data "{\"fields\":{\"project\":{\"key\":\"TECH\"},\"parent\":{\"key\":\"$project\"},\"summary\":\"test",\"description\":\"test.\",\"issuetype\":{\"name\":\"Sub-task\"}}}" -H "Content-Type:application/json" --silent https://jira.company.com/rest/api/latest/issue/ >/dev/null
curl -D- -u user:pass -X POST --data "{\"fields\":{\"project\":{\"key\":\"TECH\"},\"parent\":{\"key\":\"$project\"},\"summary\":\"test\",\"description\":\"test.\",\"issuetype\":{\"name\":\"Sub-task\"}}}" -H "Content-Type:application/json" --silent https://jira.company.com/rest/api/latest/issue/ >/dev/null