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How do I remove special characters from a Unix file?

How do I remove special characters from a string in Linux?

The first tr deletes special characters. d means delete, c means complement (invert the character set). So, -dc means delete all characters except those specified. The n and r are included to preserve linux or windows style newlines, which I assume you want.

How do I remove special characters from a CSV file in Unix?

  1. iconv (internationalization conversion) Here is a solution using iconv: iconv -c -f utf-8 -t ascii input_file.csv. …
  2. tr (translate) Here is a solution using the tr (translate) command: cat input_file.csv | tr -cd ‘

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