I want to redirect my output twice from a commandline
comp.reg $T_GDS_MASTER/bin.new $T_GDS_MASTER/bin.old > $T_GDS/log/comp.reg.out 2>&1
I want that command to also print to the screen. How can I do this?
The command that you are looking for is
tee. The full syntax is here.
Have a look at tee - read from standard input and write to standard output and files. script -- make typescript of terminal session -- maybe of interest as well.
tee is a identity filter, it can output result to stdout and save it:
tee Redirect output to multiple files, copies standard input to standard output and also to any files given as arguments. This is useful when you want not only to send some data down a pipe, but also to save a copy. Syntax tee [options]... [file]... Options -a --append Append standard input to the given files rather than overwriting them. -i --ignore-interrupts' Ignore interrupt signals. Example: ps -ax | tee processes.txt | more If a file being written to does not already exist, it is created. If a file being written to already exists, the data it previously contained is overwritten unless the `-a' option is used.