30.16. Instead of Changing History CharactersIf you need to use ! (or your current history character) for a command (for example, if you still use uucp or send mail to someone who does, using the command-line mail (Section 1.21) command), you can type a backslash (\) before each history character. You can also drop into the Bourne or Korn shell quickly -- assuming that you aren't on a system that has replaced the real Bourne shell with a shell like bash that has history substitution built in. (If you're stuck, you can use the command set +H in bash; this disables history substitution.) Either of these are probably easier than changing histchars. For example: % mail ora\!ishtar\!sally < file1 Quote the !s % sh Start the Bourne shell $ mail ora!ishtar!sally < file1 ! not special here $ exit Quit the Bourne shell % And back to the C shell The original Bourne shell doesn't have any kind of history substitution, so ! doesn't mean anything special; it's just a regular character. By the way, if you have a window system, you can probably copy and paste the command line (Section 28.10) instead of using shell history. -- ML Copyright © 2003 O'Reilly & Associates. All rights reserved. |
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