2018年1月3日 · PS2: you can append to exited file using append operator >> example cat >> file1. Copy Files. The cat command can also be used (depending on shell redirection feature) to create a new file and transfer to it the data from an existing file. Example: make a copy of file oldfile.txt: cat oldfile.txt > newfile.txt References: Linux and Unix cat command

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2017年9月17日 · $ cat .lesskey . next-file , prev-file #env LESS = iMRj5X Run lesskey to "compile" it into a ~/.less. This probably mattered more 20 years ago, but less reads that binary file instead of parsing a text config file every time it starts.

2012年7月31日 · How to pause listing long text file with cat in command prompt after 10lines then press any key. for example: cat myfiles.txt bla bla bla bla bla bla . . . bla press enter to continue

2024年11月24日 · I have Ubuntu 12.04. I need the correct output of cat /etc/apt/sources.list. I edited it because it wasn't working, but it has only made it worse. I need to know what the default sources.list conta...

2012年9月5日 · However, to pipe terminal standard output to the clipboard in WSL Ubuntu you can use clip.exe. You can then paste into the WSL Ubuntu terminal with standard paste commands and the copied text will be available in Windows as well. For example, pwd | clip.exe will copy the current working directory to the (Windows) clipboard.

2011年12月7日 · egrep can save you the use of cat. In other words, create less processes (egrep vs cat+egrep) and use less buffers (pipe from cat to egrep vs no pipe). It is generally a good idea to limit the use of cat if you simply want to pass a file to a command that can read it on its own.

2016年6月9日 · $ cat -n file | awk '$1>=4 && $1<=8 || $1==12 || $1==42' 4 Line 4 5 Line 5 6 Line 6 7 Line 7 8 Line 8 12 Line 12 42 Line 42 In awk , $1 is the first field, so this command prints all lines whose first fields are i) between 4 and 8 (inclusive) or ii) 12 or iii) 42.

2015年2月23日 · Using cat file | more I can view the file contents one page at a time. The problem is that this always starts from the top - the old entries. How can I make it start from the bottom where the newer entries are then move up page by page?

If I start unpacking it with cat myfile.tar.bz2 | tar -xj, it may unpack correctly or fail with "Unexpected EOF", depending on what is faster. How to "cat and follow" a file, i.e. output content of the file to stdout, but don't exit on EOF, instead keep subsribed to that file and continue outputting new portions of the data, exiting only if the ...