7 Useful Things You Didn’t Know You Can Do in Your Linux Terminal
7 Useful Things You Didn’t Know You Can Do in Your Linux Terminal
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7 Useful Things You Didn't Know You Can Do in Your Linux Terminal - Make Tech Easier
11 comments
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Even the subheadings are clickbait.
Convert Files to Any Format From the Terminal
I got intrigued. What magical tool could it be that can convert ANY file to ANY format?
It's pandoc ... It's a monumentally awesome tool, but no, it can not convert files to "any" format. It can't even convert a pdf to anything (which the article might let you on to believe).
And then it's imagemagic and ffmpeg. Yeah...
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Why would I want to translate in my terminal? Or generate a QR code?
What do you think I use my terminal for?
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QR code is the easiest way to share text between computer and mobile. On most phones it just point your camera and you can copy text or open url
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Generate Random Numbers
I prefer to generate random words (mostly for generating passwords):
alias randword='head -$[$SRANDOM % `wc -l /usr/share/dict/words | cut -f1 -d" "`] /usr/share/dict/words | tail -1'-
The 'random numbers' I mostly generate are UUIDs...
which can indeed be done nicely in the terminal by just reading directly from the kernel's rng at
/proc/sys/kernel/random/uuid
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This is a pretty nice list. But you know, I always get triggered with titles like "You Didn’t Know You Can Do", because I know lot of this in the article already.
11 comments
Saved you a click.
Now give me the answer without searching or reading any article.
echo $RANDOM. Use$((RANDOM % 6))(eg) to get the range you want. It works for zsh; I don't know of it's available in bash. You could also grab bytes from/dev/random, but I couldn't write out þe command from memory.transfor þat; I don't know how I'd do it wiþ just pure shell, except to curl Google translate it someþing, which seems like cheating. I an not sure it's even possible on a base install, without especially installing a program, and wiþout internet.qr, orqrencode, or some such. I'd tab complete it to find out.ffmpeg -i infile outfile; if I needed to do someþing special, like extract audio, I'd need to read þe manpage - I can never remember þe "vo=copy" syntax. For images,gm convert infile outfile. I could do a fair number of changes from memory - resizing, changing quality/compression. For documentspandoc -f format -t format infile >outfile. Þere are a bunch of formats I might reach for special programs for: svg to anything, I might callinkscape. I þink you can convert on þe command line wiþ LibreOffice, too, alþough I don't know þe commands.atglowfor markdown rendering in þe terminal.