Unix Tricks • Hacker News Board

Re: Unix Tricks

#11

Post by nemasu » Thu, Jul 03, 2014, 7:33 AM UTC

I actually bookmarked a similar page a little while ago, super useful: http://www.reddit.com/r/linux/comments/21rm3o/what_is_a_usef...

Re: Unix Tricks

#12

Post by derefr » Thu, Jul 03, 2014, 7:37 AM UTC

nemasu wrote: post #7

One to add: Unfreezing terminal after pressing Ctrl+S by accident. Press Ctrl-Q.

Or drop a `stty -ixon` into your .bash_profile to never have that problem again.

Re: Unix Tricks

#13

Post by cmatteri » Thu, Jul 03, 2014, 7:50 AM UTC

rzimmerman wrote: post #5

Ctrl-R is by far the most useful one for me.

The article doesn't say, so it's worth mentioning that you can type ctrl-R multiple times to search further back into command history.

Re: Unix Tricks

#14

Post by curiousHacker » Thu, Jul 03, 2014, 7:51 AM UTC

You know what I hate? My history isn't aggregated in real time across all my Mac OS X terminal windows.

You know what else I hate? Typing in long commands in the Mac OS X terminal and then them wrapping weirdly. Especially when I hit the up arrow to go back in my terminal history.

Re: Unix Tricks

#15

Post by tomsthumb » Thu, Jul 03, 2014, 7:53 AM UTC

samsaga2 wrote: post #3

It's amazing how many years I've been using bash and I still have things to discover. Ctrl-x Ctrl-e nice tip!

`man readline` and `man bash` alike blow my mind every time I pop them open.

Re: Unix Tricks

#16

Post by ibotty » Thu, Jul 03, 2014, 7:54 AM UTC

curiousHacker wrote: post #14

You know what I hate? My history isn't aggregated in real time across all my Mac OS X terminal windows. You know what else I hate? Typing in long commands in the Mac OS X terminal and then them wrapping weirdly. Especially when I hit the up arrow to go back in my terminal history.

> My history isn't aggregated in real time across all my Mac OS X terminal windows.

zsh has `setopt inc_append_history` and `setopt share_history`. i am sure bash has something similar.

Re: Unix Tricks

#17

Post by Tiksi » Thu, Jul 03, 2014, 8:08 AM UTC

curiousHacker wrote: post #14

You know what I hate? My history isn't aggregated in real time across all my Mac OS X terminal windows. You know what else I hate? Typing in long commands in the Mac OS X terminal and then them wrapping weirdly. Especially when I hit the up arrow to go back in my terminal history.

Here you go, just throw it in your .bashrc:

  shopt -s histappend
  export HISTSIZE=100000
  export HISTFILESIZE=100000
  export HISTCONTROL=ignoredups:erasedups
  export PROMPT_COMMAND="history -a;history -c;history -r;$PROMPT_COMMAND"

I wish I could give credit to where I originally found this but it was ages ago.

Re: Unix Tricks

#18

Post by JoeAcchino » Thu, Jul 03, 2014, 8:15 AM UTC

curiousHacker wrote: post #14

You know what I hate? My history isn't aggregated in real time across all my Mac OS X terminal windows. You know what else I hate? Typing in long commands in the Mac OS X terminal and then them wrapping weirdly. Especially when I hit the up arrow to go back in my terminal history.

> You know what else I hate? Typing in long commands in the Mac OS X terminal and then them wrapping weirdly.

I solved this by adding the following line in my ~/.bashrc

  shopt -s checkwinsize

Never tried on Mac OS X though, so I don't know if it works.

Re: Unix Tricks

#19

Post by JonnieCache » Thu, Jul 03, 2014, 8:22 AM UTC

rzimmerman wrote: post #5

Ctrl-R is by far the most useful one for me.

Ctrl-P autocompletes from your history too. It works like Ctrl-R but after you've already started typing, if you see what I mean.

This might be a zsh thing though.

Re: Unix Tricks

#20

Post by bshimmin » Thu, Jul 03, 2014, 8:23 AM UTC

TimWolla wrote: post #10

You might want to try out the more modern fish shell as well: http://fishshell.com/ It makes history searching even easier.

I love fish and have happily been using it for years. Every time it comes up here, though, someone inevitably will complain about compatibility - and I will admit that RVM, for instance, has definitely caused me problems with fish in the past. I guess it depends quite a lot on your particular usage and requirements.