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Solution for Argument list too long

0

I have the below shell script which reads a file, copies the content of the file to a variable and passes the variable as argument to another command.

declare -a arr=()
while IFS= read -r var
do
 arr+=( $var )
done < "accounts.json"
args=''
for j in "$arr[@]"
 do
 args="$args $j"
 done
 peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced",'""$args""']'

This works very well when the accounts.json file is small. But I get an error that says "Argument list too long" when the size of accounts.json is too large. I have tried xargs but to no success.

edit 1:

below is example json file with only two rows

["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]

Below is what a peer command would look like with actual data

peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced","["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]"]'

linux bash xargs

share|improve this question

edited 2 days ago

Rui F Ribeiro

41.8k1483142

asked 2 days ago

user344247user344247

63

New contributor

user344247 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  You would not be able to use xargs here as you (I assume) you need to give the complete JSON document in one go. Is that correct? Can that peer command be made to read the document from a file instead from the command line? (Note: I'm unsure what peer is).
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes, I need the complete json document in one go. I cannot use the peer command to read document from a file. peer is not a native unix/linux command. It comes from Hyperledger fabric (a blockchain service).
  
  – user344247
  2 days ago
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please show a sample of the input file and show what the -c argument is supposed to look like. I bet a simple jq script is all that's required. That would mean you don't need to break up the file into lines and then combine the lines into a string: jq would do that for you.
  
  – glenn jackman
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @glennjackman That wouldn't make the actual argument to peer shorter in the end, would it?
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @glennjackman. I have edited my question and added a few examples. Please don't worry about use of double quotes inside single quotes. I have made sure to have escape characters
  
  – user344247
  2 days ago
  
  

  
  
  
  

 | 
show 3 more comments

0

I have the below shell script which reads a file, copies the content of the file to a variable and passes the variable as argument to another command.

declare -a arr=()
while IFS= read -r var
do
 arr+=( $var )
done < "accounts.json"
args=''
for j in "$arr[@]"
 do
 args="$args $j"
 done
 peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced",'""$args""']'

This works very well when the accounts.json file is small. But I get an error that says "Argument list too long" when the size of accounts.json is too large. I have tried xargs but to no success.

edit 1:

below is example json file with only two rows

["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]

Below is what a peer command would look like with actual data

peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced","["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]"]'

linux bash xargs

share|improve this question

edited 2 days ago

Rui F Ribeiro

41.8k1483142

asked 2 days ago

user344247user344247

63

New contributor

user344247 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  You would not be able to use xargs here as you (I assume) you need to give the complete JSON document in one go. Is that correct? Can that peer command be made to read the document from a file instead from the command line? (Note: I'm unsure what peer is).
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes, I need the complete json document in one go. I cannot use the peer command to read document from a file. peer is not a native unix/linux command. It comes from Hyperledger fabric (a blockchain service).
  
  – user344247
  2 days ago
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please show a sample of the input file and show what the -c argument is supposed to look like. I bet a simple jq script is all that's required. That would mean you don't need to break up the file into lines and then combine the lines into a string: jq would do that for you.
  
  – glenn jackman
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @glennjackman That wouldn't make the actual argument to peer shorter in the end, would it?
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @glennjackman. I have edited my question and added a few examples. Please don't worry about use of double quotes inside single quotes. I have made sure to have escape characters
  
  – user344247
  2 days ago
  
  

  
  
  
  

 | 
show 3 more comments

I have the below shell script which reads a file, copies the content of the file to a variable and passes the variable as argument to another command.

declare -a arr=()
while IFS= read -r var
do
 arr+=( $var )
done < "accounts.json"
args=''
for j in "$arr[@]"
 do
 args="$args $j"
 done
 peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced",'""$args""']'

This works very well when the accounts.json file is small. But I get an error that says "Argument list too long" when the size of accounts.json is too large. I have tried xargs but to no success.

edit 1:

below is example json file with only two rows

["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]

Below is what a peer command would look like with actual data

peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced","["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]"]'

linux bash xargs

share|improve this question

edited 2 days ago

Rui F Ribeiro

41.8k1483142

asked 2 days ago

user344247user344247

63

New contributor

user344247 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

declare -a arr=()
while IFS= read -r var
do
 arr+=( $var )
done < "accounts.json"
args=''
for j in "$arr[@]"
 do
 args="$args $j"
 done
 peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced",'""$args""']'

["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]

peer chaincode invoke -n cc -C channel1 -c '"Args":["InitLedgerAdvanced","["accountID":"C682227132","accountStatus":"1",
"accountID":"C800427392","accountStatus":"1"]"]'

share|improve this question

edited 2 days ago

Rui F Ribeiro

41.8k1483142

asked 2 days ago

user344247user344247

63

New contributor

user344247 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 2 days ago

Rui F Ribeiro

41.8k1483142

asked 2 days ago

user344247user344247

63

New contributor

user344247 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 2 days ago

Rui F Ribeiro

41.8k1483142

edited 2 days ago

Rui F Ribeiro

41.8k1483142

asked 2 days ago

user344247user344247

63

New contributor

user344247 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 2 days ago

user344247user344247

63

1 Answer
1

active

oldest

votes

1

This might work

# slurp the accounts file into a variable
accounts=$(< accounts.json)

# create the json, escaping the accounts quotes along the way
printf -v json '"Args":["InitLedgerAdvanced","%s"]' "$accounts//"/\""

# and invoke the command
peer chaincode invoke -n cc -C channel1 -c "$json"

If that still gives you trouble, you'll have to find a way to pass the -c argument to "peer" via stdin or a file, not as a command line argument.

share|improve this answer

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114

add a comment | 

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1

This might work

# slurp the accounts file into a variable
accounts=$(< accounts.json)

# create the json, escaping the accounts quotes along the way
printf -v json '"Args":["InitLedgerAdvanced","%s"]' "$accounts//"/\""

# and invoke the command
peer chaincode invoke -n cc -C channel1 -c "$json"

If that still gives you trouble, you'll have to find a way to pass the -c argument to "peer" via stdin or a file, not as a command line argument.

share|improve this answer

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114

add a comment | 

1

This might work

# slurp the accounts file into a variable
accounts=$(< accounts.json)

# create the json, escaping the accounts quotes along the way
printf -v json '"Args":["InitLedgerAdvanced","%s"]' "$accounts//"/\""

# and invoke the command
peer chaincode invoke -n cc -C channel1 -c "$json"

If that still gives you trouble, you'll have to find a way to pass the -c argument to "peer" via stdin or a file, not as a command line argument.

share|improve this answer

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114

add a comment | 

This might work

# slurp the accounts file into a variable
accounts=$(< accounts.json)

# create the json, escaping the accounts quotes along the way
printf -v json '"Args":["InitLedgerAdvanced","%s"]' "$accounts//"/\""

# and invoke the command
peer chaincode invoke -n cc -C channel1 -c "$json"

If that still gives you trouble, you'll have to find a way to pass the -c argument to "peer" via stdin or a file, not as a command line argument.

share|improve this answer

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114

# slurp the accounts file into a variable
accounts=$(< accounts.json)

# create the json, escaping the accounts quotes along the way
printf -v json '"Args":["InitLedgerAdvanced","%s"]' "$accounts//"/\""

# and invoke the command
peer chaincode invoke -n cc -C channel1 -c "$json"

share|improve this answer

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114

answered 2 days ago

glenn jackmanglenn jackman

52.9k573114