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Linux commands: Difference between revisions
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→Merge multiple plain text files
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=== Merge multiple plain text files === | === Merge multiple plain text files === | ||
Step 1: check the last line of text file is newline<ref>[https://stackoverflow.com/questions/34943632/linux-check-if-there-is-a-newline-at-the-end-of-a-file eof - Linux - check if there is a newline at the end of a file - Stack Overflow]</ref> | Step 1: check the last line of text file is [[Return symbol | newline]]<ref>[https://stackoverflow.com/questions/34943632/linux-check-if-there-is-a-newline-at-the-end-of-a-file eof - Linux - check if there is a newline at the end of a file - Stack Overflow]</ref> | ||
* {{kbd | key=<nowiki>tail -c 1 file.txt</nowiki>}} on {{Linux}}. Parameter "-c <span style="text-decoration: underline;">number</span>: The location is <span style="text-decoration: underline;">number</span> bytes." quoted from the [http://man7.org/linux/man-pages/man1/tail.1.html commands manual]. If the last line is newline, returned result will be empty. {{exclaim}} How to check multiple files? | * {{kbd | key=<nowiki>tail -c 1 file.txt</nowiki>}} on {{Linux}}. Parameter "-c <span style="text-decoration: underline;">number</span>: The location is <span style="text-decoration: underline;">number</span> bytes." quoted from the [http://man7.org/linux/man-pages/man1/tail.1.html commands manual]. If the last line is newline, returned result will be empty. {{exclaim}} How to check multiple files? | ||
* (optional) If the last line is not newline, you may add the new line manually. See details on [https://unix.stackexchange.com/questions/31947/how-to-add-a-newline-to-the-end-of-a-file bash - How to add a newline to the end of a file? - Unix & Linux Stack Exchange] | |||
Step 2: Merge the content | Step 2: Merge the content | ||