Essential Linux Commands - Cat, Tac and Tee DistroTube
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Date: 2022-03-30
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Comments and reviews: 10
jamboyman
The tee content is missing a really cool addition that I've only needed once so far. Using process substitution you can split pipes to multiple commands (ksh/bash/zsh):
Uname - tee >(cowsay) >(grep a) ... >(Command n) - grep b
All the commands will be run with the same input
Think you can do the same process substitution in fish by just doing:
command 1 - tee (command 2) (command 3)
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The tee content is missing a really cool addition that I've only needed once so far. Using process substitution you can split pipes to multiple commands (ksh/bash/zsh):
Uname - tee >(cowsay) >(grep a) ... >(Command n) - grep b
All the commands will be run with the same input
Think you can do the same process substitution in fish by just doing:
command 1 - tee (command 2) (command 3)
reply
MasterHigure
You explained > and >>, but not -. Of the three, I would think that's the one that most needs explaining to beginners. Also, I didn't know command-line arguments really count as stdin, I thought that was only when programs ask for input while running (the way a newbie's second program after hello world, the one that echoes your name back at you, would typically work).
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You explained > and >>, but not -. Of the three, I would think that's the one that most needs explaining to beginners. Also, I didn't know command-line arguments really count as stdin, I thought that was only when programs ask for input while running (the way a newbie's second program after hello world, the one that echoes your name back at you, would typically work).
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Man
First of all, it has to be mentioned that the kind of redirection with file descriptors you show, only applies to those shells, who have mainly inherited from the Bourne shell, while other shells might have other notations for that.
The other points:
No, -cat 0
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First of all, it has to be mentioned that the kind of redirection with file descriptors you show, only applies to those shells, who have mainly inherited from the Bourne shell, while other shells might have other notations for that.
The other points:
No, -cat 0
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Panacea
Looks like you have a much more stronger and complicated password on your main machine there. Excellent video! I love these shell command videos. This one was really interesting. Thanks!
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Looks like you have a much more stronger and complicated password on your main machine there. Excellent video! I love these shell command videos. This one was really interesting. Thanks!
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Mohammed
Hay DT, please review NEWM. It's a new type of Window Manager which is supposedly designed specifically for laptops. I haven't seen any reviews on it. Would appreciate a lot. Thanks!
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Hay DT, please review NEWM. It's a new type of Window Manager which is supposedly designed specifically for laptops. I haven't seen any reviews on it. Would appreciate a lot. Thanks!
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Agust-n
Tac was useful for me because I wanted to print N lines before a match, and the way I found to do it is
-tac - awk (print N lines after a match) - tac-
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Tac was useful for me because I wanted to print N lines before a match, and the way I found to do it is
-tac - awk (print N lines after a match) - tac-
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Motozappa
cat is also useful to write/burn isos to drives, so it's a more efficient and clean alternative to dd or the other gui utilities out there
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cat is also useful to write/burn isos to drives, so it's a more efficient and clean alternative to dd or the other gui utilities out there
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Someone
Tac & Tee sound quite like the little programs I've written for some specific use, often a single use. Or sometimes I've used them twice.
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Tac & Tee sound quite like the little programs I've written for some specific use, often a single use. Or sometimes I've used them twice.
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MH
I actually had the very last problem recently. I just sledgehammered it with su, but the tee solution would have been much more elegant :)
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I actually had the very last problem recently. I just sledgehammered it with su, but the tee solution would have been much more elegant :)
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Xrafter
15:02 now open that file using vim or nano.
You will see all of thaf weird -/003- escapes that got interepted by the shell.
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15:02 now open that file using vim or nano.
You will see all of thaf weird -/003- escapes that got interepted by the shell.
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