Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Building JSON command with bash script

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Building JSON command with bash script
Prev   Next
# 9  
Old 09-20-2019
Correct Usage of quoting ;-)
Hello Psy,
  • Please don't full quote forum posts. Please only quote the short passage of text you're relating to. Refrain from full quoting because it adds redundant information and makes the thread harder to read.
  • regarding quoting #1

    Code:
    bitcoin-cli -testnet sendmany $backcomp $json_obj $min_conf $comment $json_lst $replc $min_conf $est_mde

    It's always a good idea to quote parameters. Else the shell will split your parameters at whitespace. For sure it splits your json-object - which is not what you want. Do it that way:

    Code:
    bitcoin-cli -testnet sendmany "$backcomp" "$json_obj" "$min_conf" "$comment" "$json_lst" "$replc" "$min_conf" "$est_mde"

  • regarding quoting #2

    This(single quotes) '$comment' does not replace $comment with the value contained in $comment. This(double quotes) "$comment" does.
  • regarding quoting #3

    Quote:
    You mean to add double quotes when I run the command? Because I have already added double quotes when I assigned the variable due to the existence of 2 separate words. Won't "$comment" expand to ""Periodic payments""? Or should I remove the double quotes at the assignment of the comment variable?
    You misunderstood the concept of quoting a bit. If you assign a variable like that: variable="my value", the content of $variable is not "my value" it is my value(without the quotes). The quotes just protect the content from word splitting. If you leave the quotes out, it would be a complete different command. If you run this command: variable=my value this means assign my to variable for the next program call and call the program named value.

    You can only get quotes as data into some variable if you quote it. ;-) like this quotes_variable='"' or like this: quotes_variable="\"".
  • I recommend to read a bit about quoting to fully understand the concept, as it is really important!
These 2 Users Gave Thanks to stomp For This Post:
Neo psysc0rpi0n
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to convert any shell command output to JSON format?

Hi All, I am new to shell scripting, Need your help in creating a shell script which converts any unix command output to JSON format output. example: sample df -h command ouput : Filesystem size used avail capacity Mounted /dev/dsk/c1t0d0s0 8.1G 4.0G 4.0G 50% /... (13 Replies)
Discussion started by: balu1234
13 Replies

2. Shell Programming and Scripting

Fun with terminal plotting JSON data at the command line

One of the great thing about unix is the ability to pipe multiple programs together to manipulate data. Plain, unstructured text is the most common type of data that is passed between programs, but these days JSON is becoming more popular. I thought it would be fun to pipe together some command... (1 Reply)
Discussion started by: kbrazil
1 Replies

3. Shell Programming and Scripting

JSON structure to table form in awk, bash

Hello guys, I want to parse a JSON file in order to get the data in a table form. My JSON file is like this: { "document":{ "page": }, { "column": } ] }, { ... (6 Replies)
Discussion started by: Gescad
6 Replies

4. UNIX for Beginners Questions & Answers

Json field grap via shell script/awk

i have a json data that looks like this: { "ip": "16.66.35.10", "hostname": "No Hostname", "city": "Stepney", "region": "England", "country": "GB", "loc": "51.57,-0.0333", "org": "AS6871 British Telecommunications PLC", "postal": "E1" } im looking for a way to assign... (9 Replies)
Discussion started by: SkySmart
9 Replies

5. Shell Programming and Scripting

Parsing and Editing a json file with bash script

I am trying to automate editing of a json file using bash script. The file I initially receive is { "appMap": { "URL1": { "name": "a" }, "URL2": { "name": "b" }, "URL3": { "name": "c" }, } WHat I would like to do is replace... (5 Replies)
Discussion started by: Junaid Subhani
5 Replies

6. Shell Programming and Scripting

UNIX or Perl script to convert JSON to CSV

Is there a Unix or Perl script that converts JSON files to CSV or tab delimited format? We are running AIX 6.1. Thanks in advance! (1 Reply)
Discussion started by: warpmail
1 Replies

7. Shell Programming and Scripting

Bash script - cygwin (powershell?) pull from GitHub API Parse JSON

All, Have a weird issue where i need to generate a report from GitHub monthly detailing user accounts and the last time they logged in. I'm using a windows box to do this (work issued) and would like to know if anyone has any experience scripting for GitAPI using windows / cygwin / powershell?... (9 Replies)
Discussion started by: ChocoTaco
9 Replies

8. Shell Programming and Scripting

How to define a variable in a BASH script by using a JSON file online?

Hello, I would like to modify an existing script of mine that uses a manually defined "MCVERSION" variable and make it define that variable instead based on this JSON file stored online: https://s3.amazonaws.com/Minecraft.Download/versions/versions.json Within that JSON, I 'm looking for... (4 Replies)
Discussion started by: nbsparks
4 Replies

9. Shell Programming and Scripting

BASH SCRIPT of LS command

I need help in writing a BASH SCRIPT of ls command. for example: $ ./do_ls.sh files f1.txt f2.jpeg f3.doc $ ./do_ls.sh dirs folder1 folder2 folder3 My attempt: #!/bin/bash # if test $# -d file then echo $dirs else (3 Replies)
Discussion started by: above8k
3 Replies

10. Shell Programming and Scripting

Building command line parameters of arbitrary length

I couldn't find an existing thread that addressed this question, so hopefully this isn't redundant with anything previously posted. Here goes: I am writing a C-Shell script that runs a program that takes an arbitrary number of parameters: myprog -a file1 \ -b file2 \ -c file3 ... \ -n... (2 Replies)
Discussion started by: cmcnorgan
2 Replies
Login or Register to Ask a Question