# seep Print `stdin` to terminal, then pipe into next process. `seep` (short for see pipe) has the purpose of letting you peek at what you're piping. ## Usage On Unix like systems, you can pass the output (`stdout`) of one process to the other as input, like this: `echo "foo" | hexdump`. In some cases, the output of the first command might contain information that a user might want to look at. When the second process does not show the information it received, the user cannot *see* the information produced by the first program. This is where `seep` comes useful: To look at the output of process one, we pipe it to `seep` and then pipe the output of `seep` to process two. `seep` will show us what information it receives and pass it over to process two: ```bash ls | seep | grep src ``` (list files and dirs, show all with `seep`, show only containing "src") ## Similarity to `tee` The command `tee` is part of the coreutils and available on almost any Unix like system. It can be used to achieve similar things as `seep`, for example: ```bash ls | tee $TTY | grep src ``` (list files and dirs, show all with `tee`, show only containing "src") `tee` and `seep` do not have the same features. Currently, `seep` cannot output to files specified with cli arguments, and `seep`'s focus lies on presenting information to the user.