Nardol

bash$ head -10 /etc/apache2/sites-available/default
(...)
bash$ ^10^20^
(...)

7 Comments on Best Bash tip ever!

1. eolo999 says:

   02/01/2009 at 01:13

   See this: http://successtheory.com/tips/zshtips.html

   Reply
2. Sam says:

   31/12/2008 at 19:39

   http://samrowe.com/wordpress/advancing-in-the-bash-shell/ has that and more.

   Reply
3. mirabilos says:

   31/12/2008 at 18:05

   Some comments I put at our Developers’ Weblog

   Of course, mksh(1) can do it as well:

   tg@bleu:~ $ head -2 /var/run/dmesg.boot MirBSD#10uA4 (GENERIC) #1161: Fri Dec 26 21:05:59 UTC 2008 tg@bleu.mirbsd.org:/usr/src/distrib/generic/obj/build/GENERIC tg@bleu:~ $ r 2=3 head -3 /var/run/dmesg.boot MirBSD#10uA4 (GENERIC) #1161: Fri Dec 26 21:05:59 UTC 2008 tg@bleu.mirbsd.org:/usr/src/distrib/generic/obj/build/GENERIC cpu0: Intel(R) Pentium(R) M processor 1.40GHz ("GenuineIntel" 686-class) 598 MHz tg@bleu:~ $ fc -l 1 head -2 /var/run/dmesg.boot 2 head -3 /var/run/dmesg.boot

   What’s best, the modified commands are written into the history, not the modificator itself.

   Some of the commentaries are rather clueless too, not $! but $_ is the last word of the last command, in this case:

   tg@bleu:~ $ head -2 /var/run/dmesg.boot MirBSD#10uA4 (GENERIC) #1161: Fri Dec 26 21:05:59 UTC 2008 tg@bleu.mirbsd.org:/usr/src/distrib/generic/obj/build/GENERIC tg@bleu:~ $ print $_ /var/run/dmesg.boot

   Instead of “^-s” you would use “r — -s=” (the two dashes are needed as the “r” built-in alias parses its arguments).

   Reply
4. great says:

   31/12/2008 at 17:41

   OLD TIP IS OLD!!

   Reply
5. Quimby says:

   31/12/2008 at 16:31

   yeah i find that ^old^new really useful.

   another tip:

   bash$ aptitude -s install zsh bash$ ^-s

   the last line will remove the -s option and thus install zsh

   Reply
6. Omari says:

   31/12/2008 at 16:14

   Check out this book, it’s got all the tips you could want:

   Bash-Z-Shell-Conquering-Command

   Reply
7. Albert says:

   31/12/2008 at 15:33

   You probably know this one, but I’ll share for others who might not:

   bash$ ls /var/www/apache2-default/ bash$ touch $!

   The $! reuses the last argument of the previous command.

   Reply