- What is the difference between . . and source? [duplicate]
The source command is not required by POSIX and therefore is less portable than the shorter Share
- What is the difference between . and source in shells?
source is there for readability and self-documentation, exists because it is quick to type The commands are identical The commands are identical Perl has long and short versions of many of its control variables for the same reason
- How do you install Make from source? - Unix Linux Stack Exchange
I have tried Make version 4 2 and 4 3 on Ubuntu 18 x, RHEL 8 x, and SUSE 15 x servers But I get the same problem I cannot use binary packages (e g, yum, apt, or zypper commands) I try to run
- bash: ‘export: command not found - Unix Linux Stack Exchange
Assuming you've copy-pasted that command as-is, it's complaining about the ‘export command being not found where that ‘ is the U+2018 left single quotation mark non-ASCII character (not to be confused with the ASCII ' apostrophe single-quote (U+0027) or ASCII ` backtick grave accent (U+0060) character)
- How do I apply the changes to the . zshrc file after editing it?
You could source the new file, which would work for some changes, possibly including updating the PATH variable (depending on other lines) However, sourcing it would simply run zshrc again, and you might execute unexpected duplicate commands Moreover, if there were deleted lines from the old zshrc, then they wouldn't be "erased" from the
- bash - read only TMOUT variable - Unix Linux Stack Exchange
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- How to generate a random string? - Unix Linux Stack Exchange
I would like to generate a random string (e g passwords, user names, etc ) It should be possible to specify the needed length (e g 13 chars) What tools can I use? (For security and privacy
- How can I reduce a videos size with ffmpeg?
All the answers here are for reducing the compression quality, but nobody has mentioned reducing the video frame size It's a lot quicker, up to multiple times faster depending on your source, and the amount of the resolution decrease, as there are fewer pixels to be encoded As a result, the file size can be reduced significantly
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