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I have >100 files that I need to merge, but for each file the first line has to be removed. What is the most efficient way to do this under Unix? I suspect it's probably a command using cat and sed '1d'. All files have the same extension and are in the same folder, so we probably could use *.extension to point to the files. Many thanks!
969
You can use w"merge.
To join two or more text files on the Linux command-line, you can use the cat command. The cat (short for “concatenate”) command is one of the most commonly used commands in Linux as well as other UNIX-like operating systems, used to concatenate files and print on the standard output.
The join command allows you to merge the content of multiple files based on a common field.
We know that we can use the command cat file1 file2 to concatenate multiple files.
Assuming your filenames are sorted in the order you want your files appended, you can use:
ls *.extension | xargs -n 1 tail -n +2 EDIT: After Sorin and Gilles comments about the possible dangers of piping ls output, you could use:
find . -name "*.extension" | xargs -n 1 tail -n +2 Everyone has to be complicated. This is really easy:
tail -q -n +2 file1 file2 file3 And so on. If you have a large number of files you can load them in to an array first:
list=(file1 file2 file3) tail -q -n +2 "${list[@]}" All the files with a given extension in the current directory?
list=(*.extension) tail -q -n +2 "${list[@]}" Or just
tail -q -n +2 *.extension If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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