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Show tee some love, for clarity and consistency

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terminalforlife 2020-02-02 19:57:22 +00:00
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1 changed files with 8 additions and 9 deletions
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# To tee stdout to a file:
# Display `ls` output to the user, but also write it to the given file.
ls | tee outfile.txt
# To tee stdout and append to a file:
# As above, but amend the data; previous file's data remains in-tact.
ls | tee -a outfile.txt
# tee would take the output of the first command in the pipeline and copy it
# to standard output (the terminal) while also making copies of it in the files one, two and three:
somecommand | tee one two three
# Pipe the standard output of a given command into `tee`, which then displays
# it to the user and sending the data to files `one`, `two`, and `three`.
[COMMAND] | tee one two three
# write 3 to /proc/sys/vm/drop_caches (with root rights)
# Workaround to output data to a file, with root privileges.
echo 3 | sudo tee /proc/sys/vm/drop_caches
# in Vim:
# The structure :w !cmd means "write the current buffer piped through command".
# Pipe the current Vim buffer to a shell process, which in this case is `tee`.
# This is especially useful as a shortcut added to `.vimrc` or similar.
:w !sudo tee %