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To fix the error that I wrote about in the previous post, I needed to remove a single line from the files with the exported databases. Moreover, the size of some files exceeds 2 GB and this action must be repeated many times. If y…
Read article →Why does awk incorrectly detect tab delimited data boundaries (input field separator) The following command will return an empty result instead of the expected third column: echo '1 2 3 4 5 6' | awk -F'\t' '{ print $3 }' In the co…
Read article →This note will show you how to convert a string to lowercase (small letters) on the Linux command line. To convert a string to lower case regardless of its current case, use one of the following commands. tr echo "Hi all" | tr '[:…
Read article →This note will show you how to convert a string to upper case (capital letters, uppercase) on the Linux command line. To convert a string to capital letters regardless of its current case, use one of the following commands. tr ech…
Read article →In this note, we will consider how to display from a specific column to the last one. For example: how to output from second column to last how to display from third column to last how to display from the fourth column to the last…
Read article →How to remove newline from a string in Bash The following characters are used for line breaks in operating systems: '\n' (newline) '\r' (carriage return) Moreover, \n is used in Linux (also called EOL, End of Line, newline). There…
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