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Shell Programming and Scripting
The efficiency between GREP and SED???
Post 302453012 by frank_rizzo on Monday 13th of September 2010 08:40:21 PM
09-13-2010
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LEARN ABOUT ULTRIX
edit
ex(1) General Commands Manual ex(1) Name ex, edit - text editor Syntax ex [ - ] [ -v ] [ -x ] [ -t tag ] [ -r ] [ +command ] [ -l ] name... edit [ ex options ] Description The editor is the root of a family of editors: and The editor is a superset of with the most notable extension being a display-editing facility. Display-based editing is the focus of The name argument indicates the files to be edited. Options - Suppresses all interactive-user feedback. This option is useful in processing editor scripts in command files. -v Equivalent to using rather than -t Equivalent to an initial tag command, that is, editing the file containing the tag and positioning the editor at its definition. -r Used to recover after an editor or system crash. It recovers by retrieving the last saved version of the named file. If no file is specified, it displays a list of saved files. -R Sets the read-only option at the start. +command Indicates that the editor should begin by executing the specified command. If the command is omitted, it defaults to $, positioning the editor at the last line of the first file, initially. Other useful commands here are scanning patterns of the form +/pattern or line numbers. -l Sets up for LISP. That is, it sets the showmatch and lisp options. The -x option is available only if the Encryption layered product is installed. -x Causes to prompt for a key. The key is used to encrypt and decrypt the contents of the file. If the file contents have been encrypted with one key, you must use the same key to decrypt them. Restrictions The command causes all marks to be lost on lines changed and then restored if the marked lines were changed. The command does not clear the buffer modified condition. The z command prints a number of logical rather than physical lines. More than a screenful of output may result if long lines are present. File input/output errors do not print a name if the command line minus sign (-) option is used. There is no easy way to do a single scan ignoring case. The editor does not warn you if you place text in named buffers and do not use it before exiting the editor. Null characters are discarded from input files, and cannot appear in output files. Files /usr/lib/ex?.?recover recover command /usr/lib/ex?.?preserve preserve command /etc/termcap terminal capabilities ~/.exrc editor startup file /tmp/Exnnnnn editor temporary /tmp/Rxnnnnn named buffer temporary /usr/preserve preservation directory See Also awk(1), ed(1), grep(1), sed(1), vi(1), termcap(5), environ(7) "Edit: A Tutorial" and the "Ex Reference Manual" in the Supplementary Documents, Volume 1: General User ex(1)