{"id":4314,"date":"2023-02-08T18:02:00","date_gmt":"2023-02-08T12:32:00","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=4314"},"modified":"2023-02-08T18:02:00","modified_gmt":"2023-02-08T12:32:00","slug":"how-to-reverse-a-string-in-unix-linux-shell","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/how-to-reverse-a-string-in-unix-linux-shell\/","title":{"rendered":"How To Reverse a String In Unix \/ Linux Shell?"},"content":{"rendered":"

There are several ways to reverse a string in Unix\/Linux shell:<\/p>\n

    \n
  1. Using rev<\/code> command: The rev<\/code> command is a utility that reverses the order of characters in a text file or standard input. To reverse a string, you can use the following syntax:<\/li>\n<\/ol>\n
    \n
    <\/div>\n
    echo<\/span> \"string_to_reverse\"<\/span> | rev
    \n<\/code><\/div>\n<\/div>\n

    For example:<\/p>\n

    \n
    <\/div>\n
    echo<\/span> \"hello world\"<\/span> | rev
    \n<\/code><\/div>\n<\/div>\n

    This will output:<\/p>\n

    \n
    <\/div>\n
    dlrow olleh
    \n<\/code><\/div>\n<\/div>\n
      \n
    1. Using awk<\/code> command: You can use the awk<\/code> command to reverse a string by reading each character in reverse order and concatenating them. The following syntax can be used:<\/li>\n<\/ol>\n
      \n
      <\/div>\n
      echo \"string_to_reverse\" | awk '{ for (i<\/span>=length; i<\/span>>0<\/span>; i<\/span>--) printf(\"%c\", substr($0<\/span>, i<\/span>, 1<\/span>)); print \"\" }'
      \n<\/code><\/div>\n<\/div>\n

      For example:<\/p>\n

      \n
      <\/div>\n
      echo \"hello world\" | awk '{ for (i<\/span>=length; i<\/span>>0<\/span>; i<\/span>--) printf(\"%c\", substr($0<\/span>, i<\/span>, 1<\/span>)); print \"\" }'
      \n<\/code><\/div>\n<\/div>\n

      This will output:<\/p>\n

      \n
      <\/div>\n
      dlrow olleh
      \n<\/code><\/div>\n<\/div>\n
        \n
      1. Using sed<\/code> command: You can use the sed<\/code> command to reverse a string by matching each character and replacing it with its reverse. The following syntax can be used:<\/li>\n<\/ol>\n
        \n
        <\/div>\n
        echo<\/span> \"string_to_reverse\"<\/span> | sed -n '1h;1!H;${g;s\/.\/\/g;s\/\\(.\\)\/\\1\\n\/g;p}'<\/span> | tac<\/span>
        \n<\/code><\/div>\n<\/div>\n

        For example:<\/p>\n

        \n
        <\/div>\n
        echo<\/span> \"hello world\"<\/span> | sed -n '1h;1!H;${g;s\/.\/\/g;s\/\\(.\\)\/\\1\\n\/g;p}'<\/span> | tac<\/span>
        \n<\/code><\/div>\n<\/div>\n

        This will output:<\/p>\n

        \n
        <\/div>\n
        dlrow olleh<\/code><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        There are several ways to reverse a string in Unix\/Linux shell: Using rev command: The rev command is a utility that reverses the order of characters in a text file or standard input. To reverse a string, you can use the following syntax: echo “string_to_reverse” | rev For example: echo “hello world” | rev This … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4314","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"\nHow To Reverse a String In Unix \/ Linux Shell? - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/how-to-reverse-a-string-in-unix-linux-shell\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How To Reverse a String In Unix \/ Linux Shell? - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"There are several ways to reverse a string in Unix\/Linux shell: Using rev command: The rev command is a utility that reverses the order of characters in a text file or standard input. To reverse a string, you can use the following syntax: echo "string_to_reverse" | rev For example: echo "hello world" | rev This ... 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