for extra fun try watch -t -n 1 "factor \$(date +%s)"
alias primetime watch -t -n 1 "factor \$(date +%s)"Linux utils that you might not know
71–80 of 159 posts
Re: Linux utils that you might not know
#72My favorite: basename
Returns just the filename plus extensions e.g.
basename a/b/c/d/foo.php returns foo.php
Very useful for shell scripting.
Re: Linux utils that you might not know
#73One note: I believe `shred` won't work as expected on a journaling file system like ext4.
In both the ‘data=ordered’ (default) and ‘data=writeback’
modes, ‘shred’ works as usual.
Source: https://www.gnu.org/software/coreutils/manual/html_node/shre...
Re: Linux utils that you might not know
#74My favorite: basename Returns just the filename plus extensions e.g. basename a/b/c/d/foo.php returns foo.php Very useful for shell scripting.
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Re: Linux utils that you might not know
#75My favorite: basename Returns just the filename plus extensions e.g. basename a/b/c/d/foo.php returns foo.php Very useful for shell scripting.
It can also strip off a given suffix, if it appears:
$ basename a/b/c/d/foo.php .php
foo
$ dirname a/b/c/d/foo.php
a/b/c/dRe: Linux utils that you might not know
#76Just look at anything in the "moreutils" package. Just great stuff. Excerpt: - ifdata: do not parse the output of ifconfig/ip anymore. Just use this tool. - sponge: when you need to overwrite an input file at the end of pipe. sponge will wait for the pipe to end before overwriting, preventing any data loss - vidir: edit a given dir with your EDITOR. Awesome for mass renames/deletes. - ts: add timestamps to a command…
Although these tools are great, I'm afraid these are of limited use, as these aren't preinstalled but must be explicitly installed.
For personal use these are great. But if you write a shell script to be executed on different machines where you can't install anything, these tools won't be available to you.
And if you don't have that requirement, i.e. you can install everything, just install appropriate Perl/Python/Ruby libraries and use a proper scripting language.
(BTW, I tend to assume that Python is installed on almost all modern Unix systems by default, hence I prefer writing portable tools in Python instead of portable Shell code.)
Re: Linux utils that you might not know
#77Which xyz-file buried in the code base has that "abc" function I saw last month? locate /\*xyzGlobPattern | xargs grep -E '\<abc[(]'
ag -G [file pattern] [text pattern]
Re: Linux utils that you might not know
#78Why does one use `font-weight: 200` for code?
It's to keep the page weight balanced. Prose is considered to have neutral buoyancy, but code is naturally heavier and will tend to drag the page down if that isn't compensated by a lighter font. FWIW poetry can be so light, that it can require a very heavy font weight to keep it tethered to the page.
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Re: Linux utils that you might not know
#79"cal -3" is quite useful, I use it all the time. To show the week-of-year use "ncal -w". Add "-S" if you want ncal to start weeks on Sunday (crazy!).
Why crazy?
Re: Linux utils that you might not know
#80Don't forget the often overlooked "apropos"!
My problem with apropos (and man, for that matter) is related to how at least one major distribution handles the man pages. Rather than bundling the man pages with the applications, the man pages for many applications are bundled together in one base package. When this is done regardless of whether or not the application is actually on the system, apropos and man continually return information on applications which are not on the system.