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  1. #!/bin/bash
  2. s="This is the content of the textfile
  3. version=0.4
  4. foo=true
  5. bar=/path/to/whatever
  6. date=20180101
  7. number=1
  8. imgpath=/path/to/whatever
  9. name=foobar"
  10. sed '/^\(version\|date\|number\)=/!d' <<< "$s"
  11. echo "-----"
  12. sed -E '/^(version|date|number)=/!d' <<< "$s"
Success #stdin #stdout 0s 19632KB
comments (?)
stdin 
Standard input is empty
stdout 
version=0.4
date=20180101
number=1
-----
version=0.4
date=20180101
number=1
https://ideone.com/XokaF5
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
secret

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