line continuation when using docker exec bash with double quotes
Clash Royale CLAN TAG#URR8PPP
I want to be able to pass variables inside the `docker exec bash -c " " which also include line continuation character. Consider below command which works with line continuation but without variables inside the bash command
docker exec -t $hostname bash -c 'authconfig --enableldap --enableldapauth
--ldapserver="myldap.docker.com" --ldapbasedn="dc=docker,dc=com" --enablesssd
--enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds
--update'
If i want to pass variables inside the bash e.g. --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' and i need to replace single quotes ' by double quotes " and also remove the line continuation '',otherwise it doesn't work.
docker exec -t $hostname bash -c "authconfig --enableldap --enableldapauth --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' --enablesssd --enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds --update"
Removing the line continuation takes away the aesthetics of the script. Are there any alternatives for this.
docker
asked Dec 17 at 14:22
Dhirendra Khanka
1032
add a comment |
I want to be able to pass variables inside the `docker exec bash -c " " which also include line continuation character. Consider below command which works with line continuation but without variables inside the bash command
docker exec -t $hostname bash -c 'authconfig --enableldap --enableldapauth
--ldapserver="myldap.docker.com" --ldapbasedn="dc=docker,dc=com" --enablesssd
--enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds
--update'
If i want to pass variables inside the bash e.g. --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' and i need to replace single quotes ' by double quotes " and also remove the line continuation '',otherwise it doesn't work.
docker exec -t $hostname bash -c "authconfig --enableldap --enableldapauth --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' --enablesssd --enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds --update"
Removing the line continuation takes away the aesthetics of the script. Are there any alternatives for this.
docker
asked Dec 17 at 14:22
Dhirendra Khanka
1032
1
Perhaps you just need to double the backslash, in order to escape it from expansion by the invoking shell?
– steeldriver
Dec 17 at 14:54
actually i had already tried it..running the command did not give any error, but it also did nothing. the files these commands are supposed to modify were untouched
– Dhirendra Khanka
Dec 17 at 15:03
Actually it seems to work, i was testing with same variable values and hoping for file to update..but the command does not update the timestamp if there is nothing to update. so i checked again with different values and it actually updates the files. Thanks for suggesting it again.
– Dhirendra Khanka
Dec 17 at 15:16
add a comment |
I want to be able to pass variables inside the `docker exec bash -c " " which also include line continuation character. Consider below command which works with line continuation but without variables inside the bash command
docker exec -t $hostname bash -c 'authconfig --enableldap --enableldapauth
--ldapserver="myldap.docker.com" --ldapbasedn="dc=docker,dc=com" --enablesssd
--enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds
--update'
If i want to pass variables inside the bash e.g. --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' and i need to replace single quotes ' by double quotes " and also remove the line continuation '',otherwise it doesn't work.
docker exec -t $hostname bash -c "authconfig --enableldap --enableldapauth --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' --enablesssd --enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds --update"
Removing the line continuation takes away the aesthetics of the script. Are there any alternatives for this.
docker
asked Dec 17 at 14:22
Dhirendra Khanka
1032
I want to be able to pass variables inside the `docker exec bash -c " " which also include line continuation character. Consider below command which works with line continuation but without variables inside the bash command
docker exec -t $hostname bash -c 'authconfig --enableldap --enableldapauth
--ldapserver="myldap.docker.com" --ldapbasedn="dc=docker,dc=com" --enablesssd
--enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds
--update'
If i want to pass variables inside the bash e.g. --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' and i need to replace single quotes ' by double quotes " and also remove the line continuation '',otherwise it doesn't work.
docker exec -t $hostname bash -c "authconfig --enableldap --enableldapauth --ldapserver='$ldaphost' --ldapbasedn='dc=$domain,dc=com' --enablesssd --enablesssdauth --enableldaptls --enablemkhomedir --disablecache --disablecachecreds --update"
Removing the line continuation takes away the aesthetics of the script. Are there any alternatives for this.
docker
docker
asked Dec 17 at 14:22
Dhirendra Khanka
1032
asked Dec 17 at 14:22
Dhirendra Khanka
1032
asked Dec 17 at 14:22
Dhirendra Khanka
1032
asked Dec 17 at 14:22
Dhirendra Khanka
1032
asked Dec 17 at 14:22
Dhirendra Khanka
1032
1032
1
Perhaps you just need to double the backslash, in order to escape it from expansion by the invoking shell?
– steeldriver
Dec 17 at 14:54
actually i had already tried it..running the command did not give any error, but it also did nothing. the files these commands are supposed to modify were untouched
– Dhirendra Khanka
Dec 17 at 15:03
Actually it seems to work, i was testing with same variable values and hoping for file to update..but the command does not update the timestamp if there is nothing to update. so i checked again with different values and it actually updates the files. Thanks for suggesting it again.
– Dhirendra Khanka
Dec 17 at 15:16
add a comment |
1
Perhaps you just need to double the backslash, in order to escape it from expansion by the invoking shell?
– steeldriver
Dec 17 at 14:54
actually i had already tried it..running the command did not give any error, but it also did nothing. the files these commands are supposed to modify were untouched
– Dhirendra Khanka
Dec 17 at 15:03
Actually it seems to work, i was testing with same variable values and hoping for file to update..but the command does not update the timestamp if there is nothing to update. so i checked again with different values and it actually updates the files. Thanks for suggesting it again.
– Dhirendra Khanka
Dec 17 at 15:16
1
1
Perhaps you just need to double the backslash, in order to escape it from expansion by the invoking shell?
– steeldriver
Dec 17 at 14:54
Perhaps you just need to double the backslash, in order to escape it from expansion by the invoking shell?
– steeldriver
Dec 17 at 14:54
actually i had already tried it..running the command did not give any error, but it also did nothing. the files these commands are supposed to modify were untouched
– Dhirendra Khanka
Dec 17 at 15:03
actually i had already tried it..running the command did not give any error, but it also did nothing. the files these commands are supposed to modify were untouched
– Dhirendra Khanka
Dec 17 at 15:03
Actually it seems to work, i was testing with same variable values and hoping for file to update..but the command does not update the timestamp if there is nothing to update. so i checked again with different values and it actually updates the files. Thanks for suggesting it again.
– Dhirendra Khanka
Dec 17 at 15:16
Actually it seems to work, i was testing with same variable values and hoping for file to update..but the command does not update the timestamp if there is nothing to update. so i checked again with different values and it actually updates the files. Thanks for suggesting it again.
– Dhirendra Khanka
Dec 17 at 15:16
add a comment |
active
oldest
votes
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f489483%2fline-continuation-when-using-docker-exec-bash-with-double-quotes%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f489483%2fline-continuation-when-using-docker-exec-bash-with-double-quotes%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Perhaps you just need to double the backslash, in order to escape it from expansion by the invoking shell?
– steeldriver
Dec 17 at 14:54
actually i had already tried it..running the command did not give any error, but it also did nothing. the files these commands are supposed to modify were untouched
– Dhirendra Khanka
Dec 17 at 15:03
Actually it seems to work, i was testing with same variable values and hoping for file to update..but the command does not update the timestamp if there is nothing to update. so i checked again with different values and it actually updates the files. Thanks for suggesting it again.
– Dhirendra Khanka
Dec 17 at 15:16