Re: [SLUG] Re: useful bash tricks thread
At the risk of being called an oldie, I keep using !-notation since the early tcsh days. E.g. !$ or !:2-3. You can also use things like !less:* to fetch the parameters of the latest less command. I can't type alt- because alt-shift is my keyboard language-switching combination, so I don't know how this compares with good old bang-notation. Other useful stuff: ^x^y will replace the first x on the previous line by y. Use a third ^ after y if it contains space. It's actually a short for !!:s/x/y/ Where !!:s comes handy is to replace globally: !!gs/x/y/ will replace ALL of the x's on last line by y's. Then again - you can type !command or !-3 to use another history line as a basis. And one last thing, related to security - if you type a sensitive string on the command line and get it into your history, use history -d to delete this line. Cheers, --Amos -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: useful bash tricks thread
2009/2/9 Amos Shapira amos.shap...@gmail.com: [snip] And one last thing, related to security - if you type a sensitive string on the command line and get it into your history, use history -d to delete this line. There is an easier way around this. Most shells, bash included will exclude a line from the history if you begin it with a space. cheers, Owen. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: useful bash tricks thread
Owen Townend wrote: 2009/2/9 Amos Shapira amos.shap...@gmail.com: [snip] And one last thing, related to security - if you type a sensitive string on the command line and get it into your history, use history -d to delete this line. There is an easier way around this. Most shells, bash included will exclude a line from the history if you begin it with a space. My bash doesn't do this. It includes the line in the history :( but HISTSIZE=2000 SHELLOPTS=braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor might have an effect on this behaviour. cheer rickw -- _ Rick Welykochy || Praxis Services If you have any trouble sounding condescending, find a Unix user to show you how it's done. -- Scott Adams -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: useful bash tricks thread
2009/2/9 Amos Shapira amos.shap...@gmail.com At the risk of being called an oldie, I keep using !-notation since the early tcsh days. E.g. !$ or !:2-3. You can also use things like !less:* to fetch the parameters of the latest less command. I can't type alt- because alt-shift is my keyboard language-switching combination, so I don't know how this compares with good old bang-notation. Other useful stuff: ^x^y will replace the first x on the previous line by y. Use a third ^ after y if it contains space. It's actually a short for !!:s/x/y/ ... I knew it. I knew there were more of you out there! :) That whole bang/caret substitute-a-pattern-and-then-run thing just scares me though, plus its hard to type. I'll stick with ctrl-r and vi-mode. But interesting... -- Daniel Bush -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: useful bash tricks thread
2009/2/9 Rick Welykochy r...@praxis.com.au: Owen Townend wrote: 2009/2/9 Amos Shapira amos.shap...@gmail.com: [snip] And one last thing, related to security - if you type a sensitive string on the command line and get it into your history, use history -d to delete this line. There is an easier way around this. Most shells, bash included will exclude a line from the history if you begin it with a space. My bash doesn't do this. It includes the line in the history :( but HISTSIZE=2000 SHELLOPTS=braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor might have an effect on this behaviour. Ah, my default bashrc has HISTCONTROL set. ~$ echo $HISTCONTROL ignoreboth This sets ignorespace and ignoredups, see the man page for details. cheers, Owen. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: useful bash tricks thread
On Sat, Feb 7, 2009 at 11:58 PM, Daniel Bush dlb.id...@gmail.com wrote: On Feb 6, 9:06 pm, Tony Sceats t...@fatuous.org wrote: It's been a while since there's been a thread like this, so I thought it would be fun :) so, have you got any? I've got 2 to share today: alt and then alt woo, that's kinda interesting. It seems to pick the last word for each entry in the command-line history? yep, kinda like !$, but this is an interactive search on the last argument to previous commands, instead of just static 'last argument to last command' -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
