它是1997年11月gnu.emacs.sources讨论的结果。 (defun duplicate-line (arg) "Duplicate current line, leaving point in lower line." (interactive "*p") ;; save the point for undo (setq buffer-undo-list (cons (point) buffer-u
M-umake letters uppercase in word from cursor position to end M-csimply make first letter in word uppercase M-lopposite to M-u Important C-gquit the running/entered command C-x uundo previous action M-x revert-buffer RETURN(insert like this) undo all changes since last save M-x recove...
u Undo the last text modifying command. U Undo all the text modifying commands performed on the line. [count]v Returns the command hist -e ${VISUAL:-${EDITOR:-vi}} count in the input buffer. If count is omitted, then the current line is used. ^L Line feed and print current line....
If a command is terminated by the control operator &, the shell executes the command in the background in a sub shell. The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each ...
4. What does the command 'dd' do in Vi? A. Delete a line B. Copy a line C. Paste a line D. Undo last action Show Answer 5. Which command is used to search for a string in Vi? A. /string B. ?string C. :search string D. Both /string and ?string Show Answer...
elasticsearch:elasticsearch elasticsearch.in.sh plugin elb-tools:elb-apply-security-groups-to-lb elb-associate-route53-hosted-zone elb-attach-lb-to-subnets elb-cmd elb-configure-healthcheck elb-create-app-cookie-stickiness-policy elb-create-lb elb-create-lb-cookie-stickiness-policy elb...
In the above command, the patch -p2 < ../../file.patch removes two leading components (myproject/original), leaving file.txt. This indicates that file.txt is located directly in ~/myproject/original/.Reversing the PatchTo reverse the patch or undo the changes, use the -R option −...
If you specify cmd_file without either the -c or -s option, the shell takes it as the name of a file containing commands to be run. Special parameter 0 is set to this name. In addition, you can use the -a, -b, -C, -e, -f, -h, -i, -k, -m, -n, -o, -P, -p,...