jm + shell   18

explainshell.com
This is pretty excellent work -- paste a UNIX command line and it'll contextually inline manual page snippets to match, highlighting the matching part of the command line.
cli  unix  documentation  explainshell  shell  scripting  syntax  manual-pages 
24 days ago by jm
Detecting the use of "curl | bash" server side
tl;dr:
The better solution is never to pipe untrusted data streams into bash. If you still want to run untrusted bash scripts a better approach is to pipe the contents of URL into a file, review the contents on disk and only then execute it.
bash  security  shell  unix  curl  tcp  buffers 
april 2016 by jm
Google Cloud Shell
your command line environment in the [Google] Cloud. This feature enables you to connect to a shell environment on a virtual machine, pre-loaded with the tools you need to easily run commands to develop, deploy and manage your projects. Currently, Cloud Shell is an f1-micro Google Compute Engine machine that exposes a Debian-based development environment. You are also assigned 5 GB of standard persistent disk space as the home disk so you can store files between sessions.


It's also free. This is a great idea -- handy both for beginners getting to grips with GoogCloud and for experts looking for a quite dev env to hack with. I wish AWS had something similar.
google  cloud  shell  google-cloud  gcs  gce  cli  tools 
october 2015 by jm
peco
'Simplistic interactive filtering tool' -- live incremental-search filtering in a terminal window
cli  shell  terminal  tools  go  peco  interactive  incremental-search  search  ui  unix 
june 2015 by jm
ShellCheck
Static code analysis for shell scripts (via Tony Finch)
bash  cli  sh  linux  shell  coding  static-analysis  lint 
april 2015 by jm
Using Named Pipes and Process Substitution in Bioinformatics
Wow. I've been using bash for nigh on 14 years and I didn't know about process substitution. Nifty trick
bash  linux  pipes  shell  unix  via:igrigorik  cli  named-pipes  process-substitution 
march 2015 by jm
Shellshock
An _extremely_ detailed resource about the bash bug
bash  hacking  security  shell  exploits  reference  shellshock 
october 2014 by jm
Russell91/sshrc
'bring your .bashrc, .vimrc, etc. with you when you ssh'. A really nice implementation of this idea (much nicer than my own version!)
hacks  productivity  ssh  remote  shell  sh  bash  via:johnke  home-directory  unix 
september 2014 by jm
moreutils
Some really cool-looking UNIX command line utils, packaged in Debian (and therefore in Ubuntu too). A few of these I've reimplemented separately, but it's always good to replace a hack with a more widely available "official" tool. Thanks, Joey Hess!
sponge: accept input, wait til EOF, then rewrite a file;
chronic: runs a command quietly unless it fails;
combine: combine the lines in two files using boolean operations;
ifdata: get network interface info without parsing ifconfig output;
ifne: run a program if the standard input is not empty;
isutf8: check if a file or standard input is utf-8;
lckdo: execute a program with a lock held;
mispipe: pipe two commands, returning the exit status of the first;
parallel: run multiple jobs at once;
pee: tee standard input to pipes;
sponge: soak up standard input and write to a file;
ts: timestamp standard input;
vidir: edit a directory in your text editor;
vipe: insert a text editor into a pipe;
zrun: automatically uncompress arguments to command
bash  shell  cli  unix  scripting  via:peakscale  joey-hess  debian  ubuntu  tools  command-line  commands 
march 2013 by jm
Making Really Executable Jars
Who knew? you can make a runnable JAR file!
There has long been a hack known in some circles, but not widely known, to make jars really executable, in the chmod +x sense. The hack takes advantage of the fact that jar files are zip files, and zip files allow arbitrary cruft to be prepended to the zip file itself (this is how self-extracting zip files work).
jars  via:netflix  shell  java  executable  chmod  zip  hacks  command-line  cli 
march 2013 by jm
spark
sparklines in your terminal window. Simply give it a comma or space-separated list of data values, and it'll generate an ANSI-graphics sparkline chart. Brilliant! (via mjd)
via:mjdominus  sparklines  charts  graphs  bash  shell  terminal  cli  ansi 
december 2011 by jm
Copying block devices between machines
a very hairy hack to perform a block-level rsync-like "send just the changes" algorithm between two very large files (think /dev/sda block devices).  Crazy, but it'd work alright!
devices  hairy  hacks  shell  perl  networking  ssh  rsync  lvm  snapshots  from delicious
march 2011 by jm
gist: 782263 - How to redirect a running process' output to a file and logout
a nifty gdb hack; essentially dup()s a couple of files in /tmp in place of fd 1 and 2, then uses the bashism "detach" to nohup the running process
gdb  hacks  linux  process  shell  unix  via:hn  nifty  dup  detach  bash  from delicious
january 2011 by jm
Project Middleman
another concurrency shell command; interesting approach to dashboarding the results, with the "mdm.screen" utility provided
mdm  unix  concurrency  shell  linux  forking  background  xargs  parallelism  from delicious
october 2010 by jm
autojump
interesting idea; extend "cd" to track which directories you cd to most frequently, then add a command to "jump" to the most-frequently used one which matches a substring you specify
autojump  cli  bash  command-line  navigation  terminal  shell  directory  cd  from delicious
july 2010 by jm
Mac OS X command-line tricks
not quite up to par with modern Ubuntu, but still a few interesting ones here for when I'm stuck using the missus' laptop ;)
apple  bash  cli  osx  mac  sysadmin  shell  tricks  command-line  from delicious
july 2010 by jm
pigz
'A parallel implementation of gzip for modern multi-processor, multi-core machines', by Mark Adler, no less
adler  pigz  gzip  compression  performance  concurrency  shell  parallel  multicore  zip  software  from delicious
october 2009 by jm

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