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Top Forums Shell Programming and Scripting Large Variable content size caveats? Post 303032087 by Neo on Monday 11th of March 2019 06:16:25 AM
Old 03-11-2019
Yes, I understanding working with JSON. I do it nearly daily (read, modify, update, write, between client and server)

FWIW,

If I was going to use the same API to modify and update JSON as you are doing, I would write a quick app with either PHP (if I did not need any UI), or I would develop with with Vue.js if I needed a web UI.

PHP processes JSON much better than bash and can easily update as well with very simple tools to pull and push files from the net built in, obviously.

Vue.js with extensions like Axios and Vuex is so rich in features for processing JSON across the net that comparing it to bash would be like comparing the Starship Enterprise to a flat bottom wooden boat (at worse) or at best (and being generous) an antique car.

Anyway, I realize a lot of people like to use these old tech tools from decades past and build an infrastructure around it to make it work; but honestly when working with JSON across the net as you are doing, there are much better tools than command line jq, curl, wget and bash, I promise Smilie

Anyway, I think I understand the reason you are using bash, curl and jq.... you are comfortable with those tools and that's cool too Smilie . I used to use those tools (excessively) between 15 and 5 years ago, so I understand and might use them again if I was forced to. However, I have noticed a seismic shift in JSON processing, including the use of Firebase and JSON-based NOSQL repos.

PS: At least use Postman to analyze your API calls. Postman is one of the single most productivity enhancing tools out where when working with JSON APIs.
 

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exit(1) 							   User Commands							   exit(1)

NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps SYNOPSIS
sh exit [n] return [n] csh exit [ ( expr )] goto label ksh *exit [n] *return [n] DESCRIPTION
sh exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of the last command executed (an EOF will also cause the shell to exit.) return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe- cuted. csh exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the expression expr. The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to jump to a label that occurs between a while or for built-in command and its corresponding end. ksh exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8 bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit except for a shell which has the ignoreeof option (See set below) turned on. return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return is invoked while not in a function or a '.' script, then it is the same as an exit. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
break(1), csh(1), ksh(1), sh(1), attributes(5) SunOS 5.10 15 Apr 1994 exit(1)
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