Bash—and other Linux shells—support powerful command plumbing using features like redirection. You may be used to the most basic type of input redirection but, as is often the case, Linux has more ...

Hi all,<BR><BR>I'm having some trouble with redirection in bash.<BR><BR>I'm trying to redirect stderr to a file, then later redirect stderr to a different file. I thought this was just a case of ...

Linux commands can make use of standard streams for input, output, and error messages. Redirection sends an output stream to a file instead of the terminal window ...

The first line writes "hello world" to the file "output", the second reads it back and writes it to standard output (normally the terminal). A "here" document is essentially a temporary, nameless file ...

Recently I needed to create a script that processed two input files. By processed I mean that the script needed to get a line from one file, then get a line from the second file, and then do something ...