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Shell command output to file with command being executed [duplicate]

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1

This question already has an answer here:

• 
  How can I save the command and its execution output to file at the same time
  
  4 answers
  
  

How can I output the command itself in addition to its output to a file?

I know that I can do how to output text to both screen and file inside a shell script? to capture the output. My use case is specific to pytest.

pytest /awesome_tests -k test_quick_tests -n auto &> test_output_$(date -u +"%FT%H%MZ").txt

It would be really helpful to have the command executed in the output so I knew specifically what the results were for.

linux bash io-redirection

share|improve this question

asked 2 days ago

Ryan GatesRyan Gates

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marked as duplicate by Kusalananda♦ bash
Users with the  bash badge can single-handedly close bash questions as duplicates and reopen them as needed.

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2 days ago

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

add a comment | 

1

This question already has an answer here:

• 
  How can I save the command and its execution output to file at the same time
  
  4 answers
  
  

How can I output the command itself in addition to its output to a file?

I know that I can do how to output text to both screen and file inside a shell script? to capture the output. My use case is specific to pytest.

pytest /awesome_tests -k test_quick_tests -n auto &> test_output_$(date -u +"%FT%H%MZ").txt

It would be really helpful to have the command executed in the output so I knew specifically what the results were for.

linux bash io-redirection

share|improve this question

asked 2 days ago

Ryan GatesRyan Gates

10644 bronze badges

New contributor

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

marked as duplicate by Kusalananda♦ bash
Users with the  bash badge can single-handedly close bash questions as duplicates and reopen them as needed.

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2 days ago

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

add a comment | 

This question already has an answer here:

• 
  How can I save the command and its execution output to file at the same time
  
  4 answers
  
  

How can I output the command itself in addition to its output to a file?

I know that I can do how to output text to both screen and file inside a shell script? to capture the output. My use case is specific to pytest.

pytest /awesome_tests -k test_quick_tests -n auto &> test_output_$(date -u +"%FT%H%MZ").txt

It would be really helpful to have the command executed in the output so I knew specifically what the results were for.

linux bash io-redirection

share|improve this question

asked 2 days ago

Ryan GatesRyan Gates

10644 bronze badges

New contributor

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

pytest /awesome_tests -k test_quick_tests -n auto &> test_output_$(date -u +"%FT%H%MZ").txt

share|improve this question

asked 2 days ago

Ryan GatesRyan Gates

10644 bronze badges

New contributor

Ryan Gates 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

asked 2 days ago

Ryan GatesRyan Gates

10644 bronze badges

New contributor

Ryan Gates 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

Ryan GatesRyan Gates

10644 bronze badges

New contributor

Ryan Gates 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

Ryan GatesRyan Gates

10644 bronze badges

2 Answers
2

active

oldest

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0

Another option, using bash soley for the &> redirection that you started with, but sh-compatible otherwise:

set -- '/awesome_tests' '-k' 'test_quick_tests' '-n' 'auto'

{ printf '%s %sn' 'pytest' "$*";

  pytest "$@";

} &> test_output_$(date -u +"%FT%H%MZ").txt

This sets up the positional parameters to contain the arguments to the pytest command; it then runs two commands inside the {} brace grouping:

1. print the pytest string followed by the concatenation of the arguments by space (the default first character of $IFS)


2. run the actual pytest command with the given arguments

That brace group is then redirected as before.

share|improve this answer

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

add a comment | 

0

sh -v <<< 'pytest /awesome_tests -k test_quick_tests -n auto' 

    &> test_output_$(date -u +"%FT%H%MZ").txt

sh -v causes sh to echo each command line to stderr, so since you're already capturing stderr to your output file, all that is needed is to use the -v option and to supply sh with the command you wish to run.

Note that in my testing, sh -v -c 'your-command-here' did not work.

echo 'pytest /awesome_tests -k test_quick_tests -n auto' | 

    sh -v &> test_output_$(date -u +"%FT%H%MZ").txt

does work, but echo ... | is what bash's <<< is for.

share|improve this answer

edited 2 days ago

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  sh -v -c probably did not work since the shell had already read the commands (since you used -c). The -v makes the shell output the commands "as they are read".
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Kusalananda Yep. Just checked the man page and that is exactly it.
  
  – Jim L.
  2 days ago
  
  
  

  
  
  
  

add a comment | 

0

Another option, using bash soley for the &> redirection that you started with, but sh-compatible otherwise:

set -- '/awesome_tests' '-k' 'test_quick_tests' '-n' 'auto'

{ printf '%s %sn' 'pytest' "$*";

  pytest "$@";

} &> test_output_$(date -u +"%FT%H%MZ").txt

This sets up the positional parameters to contain the arguments to the pytest command; it then runs two commands inside the {} brace grouping:

1. print the pytest string followed by the concatenation of the arguments by space (the default first character of $IFS)


2. run the actual pytest command with the given arguments

That brace group is then redirected as before.

share|improve this answer

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

add a comment | 

0

Another option, using bash soley for the &> redirection that you started with, but sh-compatible otherwise:

set -- '/awesome_tests' '-k' 'test_quick_tests' '-n' 'auto'

{ printf '%s %sn' 'pytest' "$*";

  pytest "$@";

} &> test_output_$(date -u +"%FT%H%MZ").txt

This sets up the positional parameters to contain the arguments to the pytest command; it then runs two commands inside the {} brace grouping:

1. print the pytest string followed by the concatenation of the arguments by space (the default first character of $IFS)


2. run the actual pytest command with the given arguments

That brace group is then redirected as before.

share|improve this answer

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

add a comment | 

Another option, using bash soley for the &> redirection that you started with, but sh-compatible otherwise:

set -- '/awesome_tests' '-k' 'test_quick_tests' '-n' 'auto'

{ printf '%s %sn' 'pytest' "$*";

  pytest "$@";

} &> test_output_$(date -u +"%FT%H%MZ").txt

This sets up the positional parameters to contain the arguments to the pytest command; it then runs two commands inside the {} brace grouping:

1. print the pytest string followed by the concatenation of the arguments by space (the default first character of $IFS)


2. run the actual pytest command with the given arguments

That brace group is then redirected as before.

share|improve this answer

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

set -- '/awesome_tests' '-k' 'test_quick_tests' '-n' 'auto'

{ printf '%s %sn' 'pytest' "$*";

  pytest "$@";

} &> test_output_$(date -u +"%FT%H%MZ").txt

share|improve this answer

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

answered 2 days ago

Jeff Schaller♦Jeff Schaller

49k1111 gold badges7272 silver badges162162 bronze badges

0

sh -v <<< 'pytest /awesome_tests -k test_quick_tests -n auto' 

    &> test_output_$(date -u +"%FT%H%MZ").txt

sh -v causes sh to echo each command line to stderr, so since you're already capturing stderr to your output file, all that is needed is to use the -v option and to supply sh with the command you wish to run.

Note that in my testing, sh -v -c 'your-command-here' did not work.

echo 'pytest /awesome_tests -k test_quick_tests -n auto' | 

    sh -v &> test_output_$(date -u +"%FT%H%MZ").txt

does work, but echo ... | is what bash's <<< is for.

share|improve this answer

edited 2 days ago

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  sh -v -c probably did not work since the shell had already read the commands (since you used -c). The -v makes the shell output the commands "as they are read".
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Kusalananda Yep. Just checked the man page and that is exactly it.
  
  – Jim L.
  2 days ago
  
  
  

  
  
  
  

add a comment | 

0

sh -v <<< 'pytest /awesome_tests -k test_quick_tests -n auto' 

    &> test_output_$(date -u +"%FT%H%MZ").txt

sh -v causes sh to echo each command line to stderr, so since you're already capturing stderr to your output file, all that is needed is to use the -v option and to supply sh with the command you wish to run.

Note that in my testing, sh -v -c 'your-command-here' did not work.

echo 'pytest /awesome_tests -k test_quick_tests -n auto' | 

    sh -v &> test_output_$(date -u +"%FT%H%MZ").txt

does work, but echo ... | is what bash's <<< is for.

share|improve this answer

edited 2 days ago

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  sh -v -c probably did not work since the shell had already read the commands (since you used -c). The -v makes the shell output the commands "as they are read".
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Kusalananda Yep. Just checked the man page and that is exactly it.
  
  – Jim L.
  2 days ago
  
  
  

  
  
  
  

add a comment | 

sh -v <<< 'pytest /awesome_tests -k test_quick_tests -n auto' 

    &> test_output_$(date -u +"%FT%H%MZ").txt

sh -v causes sh to echo each command line to stderr, so since you're already capturing stderr to your output file, all that is needed is to use the -v option and to supply sh with the command you wish to run.

Note that in my testing, sh -v -c 'your-command-here' did not work.

echo 'pytest /awesome_tests -k test_quick_tests -n auto' | 

    sh -v &> test_output_$(date -u +"%FT%H%MZ").txt

does work, but echo ... | is what bash's <<< is for.

share|improve this answer

edited 2 days ago

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges

sh -v <<< 'pytest /awesome_tests -k test_quick_tests -n auto' 

    &> test_output_$(date -u +"%FT%H%MZ").txt

echo 'pytest /awesome_tests -k test_quick_tests -n auto' | 

    sh -v &> test_output_$(date -u +"%FT%H%MZ").txt

share|improve this answer

edited 2 days ago

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges

answered 2 days ago

Jim L.Jim L.

1,91944 silver badges1010 bronze badges