BASH
echo "Hello world!"
echo $?
mkdir folder && cd ./folder
vim test.sh
$? comment will return last return in the stuck which will be either 0 or 1
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#!/bin/bash
set -e
function unit_test(){
echo "running unit test"
return 1
}
function integration_test(){
echo "integration unit test"
return 0
}
function e2e_test(){
echo "e2e unit test"
return 0
}
set +e
unit_test
set -e
integration_test
e2e_test
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we need to give execution permission to executable file
chmod +x test.sh
because we set -e , even though unit_test fails, the program executes
returning from function
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#!/bin/bash
function sound(){
echo "how!!"
}
echo "dog says $sound"
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tar
we can not return anything apart from 0-255
vim file1 file2
tar -cf files.tar file1 file2 && rm file1 file2
ls -lah
tar -tf files.tar | grep file1 // to list them
tar -xf files.tar // to extract files
tar -czvf files.tgz file1 file2 //zipped file (the least kb)
tar -xzvf files.tgz // to extract them
cURL
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curl localhost:3000/dogs #implicit get request
curl localhost:3000/dogs -X GET # -o /folder/x.html
curl localhost:3000/dogs -X POST -d '{"name":"erbash", "bred":"bulldog"}' -H 'content-type: application/json'
echo $? # to check if returns 0
vim data.json # {"name":"jojo","bred":"papillion"}
curl localhost:3000/dogs -d @data.json -H 'content-type: application/json' // -v (verbose)
curl localhost:3000/dogs -o /dev/dogs/data # -w '%{response_code}'
curl -v localhost:8080/admin # with verbose will get 401 not authorized
curl localhost:8080/admin -u admin:secret_psswd username:password
curl -I localhost:3000/dogs -X GET # -I to get header, -L to redirect
curl localhost:3000/dogs -X GET -o /folder/x.html
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update
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curl localhost:8000/users/3 -X PUT -d '{"first_name":"tom","last_name":"cruse"}' -H 'content-type:application/json'
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get
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curl localhost:3000/dogs -X GET -v # you can read all the handshakes,certificates and html
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update
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curl localhost:8000/users/3 -X PUT -d '{"first_name":"tom","last_name":"cruse"}' -H 'content-type:application/json'
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delete
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curl localhost:8000/users/3 -X DELETE
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