December 26, 2009 — Print the contents of a file:
cat filename.txt
Pipe the contents of the file to less, so you can view it one page at a time:
cat filename | less
In less, the 3 key commands are:
You can also do regular expression searches like in vim: /regex (n to go to next match)
Append file1 to the end of file 2:
cat file1 >> file2
Combine two files into a third file:
cat file1 file2 > file3