How to read headers from file using cURL?

I found this.

And I wrote this variant:

#!/bin/bash

while read line ; do

  headers="$headers -H '$line'"

done < public/headers.txt

echo $headers

curl -X PUT 

     $headers 

     -d @'public/example.json' 

     echo.httpkit.com

In headers.txt I have:

X-PAYPAL-SECURITY-USERID:123

X-PAYPAL-SECURITY-PASSWORD:123

But when I run ./public/curl.sh I am not getting the headers I am sending.

I isolated the issue with an env var:

$ x='-H some:asd'

$ curl $x echo.httpkit.com

=> header was NOT present

$ curl -H 'some:asd' echo.httpkit.com

=> header was present

$ curl -H some:asd echo.httpkit.com

=> header was present

How can I correctly insert a variable in the header section?

edited Nov 22 '18 at 7:59

jww

53.4k40231506

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

How do you know the header is present or not? I'm checking with curl -v $x echo.httpkit.com 2>&1 >/dev/null | grep some: and it matches, looks like the header is there just fine. What is your ``curl --version` ?

– janos
Jul 2 '14 at 22:16

add a comment |

I found this.

And I wrote this variant:

#!/bin/bash

while read line ; do

  headers="$headers -H '$line'"

done < public/headers.txt

echo $headers

curl -X PUT 

     $headers 

     -d @'public/example.json' 

     echo.httpkit.com

In headers.txt I have:

X-PAYPAL-SECURITY-USERID:123

X-PAYPAL-SECURITY-PASSWORD:123

But when I run ./public/curl.sh I am not getting the headers I am sending.

I isolated the issue with an env var:

$ x='-H some:asd'

$ curl $x echo.httpkit.com

=> header was NOT present

$ curl -H 'some:asd' echo.httpkit.com

=> header was present

$ curl -H some:asd echo.httpkit.com

=> header was present

How can I correctly insert a variable in the header section?

edited Nov 22 '18 at 7:59

jww

53.4k40231506

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

How do you know the header is present or not? I'm checking with curl -v $x echo.httpkit.com 2>&1 >/dev/null | grep some: and it matches, looks like the header is there just fine. What is your ``curl --version` ?

– janos
Jul 2 '14 at 22:16

add a comment |

I found this.

And I wrote this variant:

#!/bin/bash

while read line ; do

  headers="$headers -H '$line'"

done < public/headers.txt

echo $headers

curl -X PUT 

     $headers 

     -d @'public/example.json' 

     echo.httpkit.com

In headers.txt I have:

X-PAYPAL-SECURITY-USERID:123

X-PAYPAL-SECURITY-PASSWORD:123

But when I run ./public/curl.sh I am not getting the headers I am sending.

I isolated the issue with an env var:

$ x='-H some:asd'

$ curl $x echo.httpkit.com

=> header was NOT present

$ curl -H 'some:asd' echo.httpkit.com

=> header was present

$ curl -H some:asd echo.httpkit.com

=> header was present

How can I correctly insert a variable in the header section?

edited Nov 22 '18 at 7:59

jww

53.4k40231506

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

I found this.

And I wrote this variant:

#!/bin/bash

while read line ; do

  headers="$headers -H '$line'"

done < public/headers.txt

echo $headers

curl -X PUT 

     $headers 

     -d @'public/example.json' 

     echo.httpkit.com

In headers.txt I have:

X-PAYPAL-SECURITY-USERID:123

X-PAYPAL-SECURITY-PASSWORD:123

But when I run ./public/curl.sh I am not getting the headers I am sending.

I isolated the issue with an env var:

$ x='-H some:asd'

$ curl $x echo.httpkit.com

=> header was NOT present

$ curl -H 'some:asd' echo.httpkit.com

=> header was present

$ curl -H some:asd echo.httpkit.com

=> header was present

How can I correctly insert a variable in the header section?

linux shell curl

edited Nov 22 '18 at 7:59

jww

53.4k40231506

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

edited Nov 22 '18 at 7:59

jww

53.4k40231506

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

edited Nov 22 '18 at 7:59

jww

53.4k40231506

edited Nov 22 '18 at 7:59

jww

53.4k40231506

edited Nov 22 '18 at 7:59

jww

53.4k40231506

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

asked Jul 2 '14 at 21:32

juanpastas

15.6k1167126

How do you know the header is present or not? I'm checking with curl -v $x echo.httpkit.com 2>&1 >/dev/null | grep some: and it matches, looks like the header is there just fine. What is your ``curl --version` ?

– janos
Jul 2 '14 at 22:16

add a comment |

How do you know the header is present or not? I'm checking with curl -v $x echo.httpkit.com 2>&1 >/dev/null | grep some: and it matches, looks like the header is there just fine. What is your ``curl --version` ?

– janos
Jul 2 '14 at 22:16

How do you know the header is present or not? I'm checking with curl -v $x echo.httpkit.com 2>&1 >/dev/null | grep some: and it matches, looks like the header is there just fine. What is your ``curl --version` ?

– janos
Jul 2 '14 at 22:16

add a comment |

2 Answers
2

active

oldest

votes

Let's ask shellcheck:

In yourscript line 3:

  headers="$headers -H '$line'"

                       ^-- SC2089: Quotes/backslashes will be treated literally. 

                                   Use an array.

Ok, then let's do that:

#!/bin/bash

while read line ; do

headers=("${headers[@]}" -H "$line")

done < public/headers.txt

echo "${headers[@]}"

curl -X PUT 

   "${headers[@]}" 

   -d @'public/example.json' 

   echo.httpkit.com

Result:

{

  "method": "PUT",

  "uri": "/",

  "path": {

    "name": "/",

    "query": "",

    "params": {}

  },

  "headers": {

    "host": "echo.httpkit.com",

    "user-agent": "curl/7.35.0",

    "accept": "*/*",

    "x-paypal-security-userid": "123",      //      <----- Yay!!

    "x-paypal-security-password": "123",

    "content-length": "32",

    "content-type": "application/x-www-form-urlencoded"

  },

  "body": ""This is text from example.json"",

  "ip": "127.0.0.1",

  "powered-by": "http://httpkit.com",

  "docs": "http://httpkit.com/echo"

}

edited Jul 2 '14 at 22:49

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

great answer! thanks a lot

– juanpastas
Jul 3 '14 at 3:06

add a comment |

If you don't want to put the HTTP headers on a command line (perhaps for security reasons), you can still have curl read them directly from a file.

curl -H @headerfile.txt https://www.google.com/  # requires curl >=7.55.0

If your curl is older than 7.55.0:

Use the option -K/--config <config file>, and put several -H/--header <header> lines in the text file.

For more details, please see my answer in the original article:

https://stackoverflow.com/a/48762561/5201675

answered Feb 13 '18 at 9:01

traal

8615

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

Let's ask shellcheck:

In yourscript line 3:

  headers="$headers -H '$line'"

                       ^-- SC2089: Quotes/backslashes will be treated literally. 

                                   Use an array.

Ok, then let's do that:

#!/bin/bash

while read line ; do

headers=("${headers[@]}" -H "$line")

done < public/headers.txt

echo "${headers[@]}"

curl -X PUT 

   "${headers[@]}" 

   -d @'public/example.json' 

   echo.httpkit.com

Result:

{

  "method": "PUT",

  "uri": "/",

  "path": {

    "name": "/",

    "query": "",

    "params": {}

  },

  "headers": {

    "host": "echo.httpkit.com",

    "user-agent": "curl/7.35.0",

    "accept": "*/*",

    "x-paypal-security-userid": "123",      //      <----- Yay!!

    "x-paypal-security-password": "123",

    "content-length": "32",

    "content-type": "application/x-www-form-urlencoded"

  },

  "body": ""This is text from example.json"",

  "ip": "127.0.0.1",

  "powered-by": "http://httpkit.com",

  "docs": "http://httpkit.com/echo"

}

edited Jul 2 '14 at 22:49

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

great answer! thanks a lot

– juanpastas
Jul 3 '14 at 3:06

add a comment |

Let's ask shellcheck:

In yourscript line 3:

  headers="$headers -H '$line'"

                       ^-- SC2089: Quotes/backslashes will be treated literally. 

                                   Use an array.

Ok, then let's do that:

#!/bin/bash

while read line ; do

headers=("${headers[@]}" -H "$line")

done < public/headers.txt

echo "${headers[@]}"

curl -X PUT 

   "${headers[@]}" 

   -d @'public/example.json' 

   echo.httpkit.com

Result:

{

  "method": "PUT",

  "uri": "/",

  "path": {

    "name": "/",

    "query": "",

    "params": {}

  },

  "headers": {

    "host": "echo.httpkit.com",

    "user-agent": "curl/7.35.0",

    "accept": "*/*",

    "x-paypal-security-userid": "123",      //      <----- Yay!!

    "x-paypal-security-password": "123",

    "content-length": "32",

    "content-type": "application/x-www-form-urlencoded"

  },

  "body": ""This is text from example.json"",

  "ip": "127.0.0.1",

  "powered-by": "http://httpkit.com",

  "docs": "http://httpkit.com/echo"

}

edited Jul 2 '14 at 22:49

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

great answer! thanks a lot

– juanpastas
Jul 3 '14 at 3:06

add a comment |

Let's ask shellcheck:

In yourscript line 3:

  headers="$headers -H '$line'"

                       ^-- SC2089: Quotes/backslashes will be treated literally. 

                                   Use an array.

Ok, then let's do that:

#!/bin/bash

while read line ; do

headers=("${headers[@]}" -H "$line")

done < public/headers.txt

echo "${headers[@]}"

curl -X PUT 

   "${headers[@]}" 

   -d @'public/example.json' 

   echo.httpkit.com

Result:

{

  "method": "PUT",

  "uri": "/",

  "path": {

    "name": "/",

    "query": "",

    "params": {}

  },

  "headers": {

    "host": "echo.httpkit.com",

    "user-agent": "curl/7.35.0",

    "accept": "*/*",

    "x-paypal-security-userid": "123",      //      <----- Yay!!

    "x-paypal-security-password": "123",

    "content-length": "32",

    "content-type": "application/x-www-form-urlencoded"

  },

  "body": ""This is text from example.json"",

  "ip": "127.0.0.1",

  "powered-by": "http://httpkit.com",

  "docs": "http://httpkit.com/echo"

}

edited Jul 2 '14 at 22:49

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

Let's ask shellcheck:

In yourscript line 3:

  headers="$headers -H '$line'"

                       ^-- SC2089: Quotes/backslashes will be treated literally. 

                                   Use an array.

Ok, then let's do that:

#!/bin/bash

while read line ; do

headers=("${headers[@]}" -H "$line")

done < public/headers.txt

echo "${headers[@]}"

curl -X PUT 

   "${headers[@]}" 

   -d @'public/example.json' 

   echo.httpkit.com

Result:

{

  "method": "PUT",

  "uri": "/",

  "path": {

    "name": "/",

    "query": "",

    "params": {}

  },

  "headers": {

    "host": "echo.httpkit.com",

    "user-agent": "curl/7.35.0",

    "accept": "*/*",

    "x-paypal-security-userid": "123",      //      <----- Yay!!

    "x-paypal-security-password": "123",

    "content-length": "32",

    "content-type": "application/x-www-form-urlencoded"

  },

  "body": ""This is text from example.json"",

  "ip": "127.0.0.1",

  "powered-by": "http://httpkit.com",

  "docs": "http://httpkit.com/echo"

}

edited Jul 2 '14 at 22:49

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

edited Jul 2 '14 at 22:49

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

answered Jul 2 '14 at 22:44

that other guy

73.6k885123

great answer! thanks a lot

– juanpastas
Jul 3 '14 at 3:06

add a comment |

great answer! thanks a lot

– juanpastas
Jul 3 '14 at 3:06

great answer! thanks a lot

– juanpastas
Jul 3 '14 at 3:06

add a comment |

If you don't want to put the HTTP headers on a command line (perhaps for security reasons), you can still have curl read them directly from a file.

curl -H @headerfile.txt https://www.google.com/  # requires curl >=7.55.0

If your curl is older than 7.55.0:

Use the option -K/--config <config file>, and put several -H/--header <header> lines in the text file.

For more details, please see my answer in the original article:

https://stackoverflow.com/a/48762561/5201675

answered Feb 13 '18 at 9:01

traal

8615

add a comment |

If you don't want to put the HTTP headers on a command line (perhaps for security reasons), you can still have curl read them directly from a file.

curl -H @headerfile.txt https://www.google.com/  # requires curl >=7.55.0

If your curl is older than 7.55.0:

Use the option -K/--config <config file>, and put several -H/--header <header> lines in the text file.

For more details, please see my answer in the original article:

https://stackoverflow.com/a/48762561/5201675

answered Feb 13 '18 at 9:01

traal

8615

add a comment |

If you don't want to put the HTTP headers on a command line (perhaps for security reasons), you can still have curl read them directly from a file.

curl -H @headerfile.txt https://www.google.com/  # requires curl >=7.55.0

If your curl is older than 7.55.0:

Use the option -K/--config <config file>, and put several -H/--header <header> lines in the text file.

For more details, please see my answer in the original article:

https://stackoverflow.com/a/48762561/5201675

answered Feb 13 '18 at 9:01

traal

8615

If you don't want to put the HTTP headers on a command line (perhaps for security reasons), you can still have curl read them directly from a file.

curl -H @headerfile.txt https://www.google.com/  # requires curl >=7.55.0

If your curl is older than 7.55.0:

Use the option -K/--config <config file>, and put several -H/--header <header> lines in the text file.

For more details, please see my answer in the original article:

https://stackoverflow.com/a/48762561/5201675

answered Feb 13 '18 at 9:01

traal

8615

answered Feb 13 '18 at 9:01

traal

8615

answered Feb 13 '18 at 9:01

traal

8615

answered Feb 13 '18 at 9:01

traal

8615

add a comment |

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