Execute bash script from URL

Question

Say I have a file at the URL  http   mywebsite com myscript txt  that contains a script      bin bash echo  Hello  world   read -p  What is your name    name echo  Hello    name      And I d like to run this script without first saving it to a file  How do I do this   Now  I ve seen the syntax   bash  lt   lt  curl -s http   mywebsite com myscript txt    But this doesn t seem to work like it would if I saved to a file and then executed  For example readline doesn t work  and the output is just     bash  lt   lt  curl -s http   mywebsite com myscript txt  Hello  world    Similarly  I ve tried   curl -s http   mywebsite com myscript txt   bash -s --   With the same results   Originally I had a solution like   timestamp  date   Y m d H M S  curl -s http   mywebsite com myscript txt -o  tmp  myscript   timestamp  tmp bash  tmp  myscript   timestamp  tmp rm -f  tmp  myscript   timestamp  tmp   But this seems sloppy  and I d like a more elegant solution   I m aware of the security issues regarding running a shell script from a URL  but let s ignore all of that for right now

User · Answer

Using wget  which is usually part of default system installation   bash  lt  wget -qO- http   mywebsite com myscript txt

User · Answer

The best way to do it is  curl http   domain path to script sh   bash -s arg1 arg2   which is a slight change of answer by  user77115

User · Answer

I often using the following is enough  curl -s http   mywebsite com myscript txt   sh   But in a old system  kernel2 4    it encounter problems  and do the following can solve it  I tried many others  only the following works  curl -s http   mywebsite com myscript txt -o a sh  amp  amp  sh a sh  amp  amp  rm -f a sh   Examples    curl -s someurl   sh Starting to insert crontab sh   name  sh  command not found sh  line 208  syntax error near unexpected token  then  sh  line 208    -eq 0     then      The problem may cause by network slow  or bash version too old that can t handle network slow gracefully  However  the following solves the problem    curl -s someurl -o a sh  amp  amp  sh a sh  amp  amp  rm -f a sh Starting to insert crontab Insert crontab entry is ok  Insert crontab is done  okay

User · Answer

This is the way to execute remote script with passing to it some arguments  arg1 arg2    curl -s http   server path script sh   bash  dev stdin arg1 arg2

User · Answer

For bash  Bourne shell and fish   curl -s http   server path script sh   bash -s arg1 arg2   Flag  -s  makes shell read from stdin

User · Answer

source  lt  curl -s http   mywebsite com myscript txt    ought to do it   Alternately  leave off the initial redirection on yours  which is redirecting standard input  bash takes a filename to execute just fine without redirection  and  lt  command  syntax provides a path   bash  lt  curl -s http   mywebsite com myscript txt    It may be clearer if you look at the output of echo  lt  cat  dev null

User · Answer

Is some unattended scripts I use the following command   sh -c    curl -fsSL  lt URL gt     I recommend to avoid executing scripts directly from URLs  You should be sure the URL is safe and check the content of the script before executing  you can use a SHA256 checksum to validate the file before executing

User · Answer

You can also do this   wget -O - https   raw github com luismartingil commands master 101 remote2local wireshark sh   bash

User · Answer

Also   curl -sL https          sudo bash -

User · Answer

Try just   bash  lt  curl -s http   mywebsite com myscript txt

User · Answer

Use   curl -s -L URL TO SCRIPT HERE   bash   For example   curl -s -L http   bitly 10hA8iC   bash

User · Answer

Just combining amra and user77115 s answers    wget -qO- https   raw githubusercontent com lingtalfi TheScientist master  bb autoload bbstart sh   bash -s -- -v -v   It executes the bbstart sh distant script passing it the -v -v options

User · Answer

bash   curl http   your url here script txt   actual example   juan juan-MS-7808    bash   curl https   raw githubusercontent com JPHACKER2k18 markwe master testapp sh   Oh  wow im alive   juan juan-MS-7808

User · Answer

This way is good and conventional   17 04 59 itqx   qx gt source  lt  curl -Ls http   192 168 80 154 cent74 just4Test  Lord Jesus Loves YOU Remote script test    Param size  4  --------- 17 19 31 node7  var www html cent74 arch gt cat just4Test echo Remote script test    echo Param size

[linux] Execute bash script from URL

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