Path: csiph.com!goblin2!goblin3!goblin.stu.neva.ru!panix!usenet.stanford.edu!not-for-mail From: Greg Wooledge Newsgroups: gnu.bash.bug Subject: Re: How get last commnda history line number directly Date: Tue, 1 Sep 2020 08:32:22 -0400 Lines: 15 Approved: bug-bash@gnu.org Message-ID: References: <1598951673480-0.post@n7.nabble.com> <20200901123222.GV931@eeg.ccf.org> NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: usenet.stanford.edu 1598963576 12890 209.51.188.17 (1 Sep 2020 12:32:56 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash@gnu.org Envelope-to: bug-bash@gnu.org Mail-Followup-To: bug-bash@gnu.org Content-Disposition: inline In-Reply-To: <1598951673480-0.post@n7.nabble.com> User-Agent: Mutt/1.10.1 (2018-07-13) Received-SPF: none client-ip=139.137.100.1; envelope-from=wooledg@eeg.ccf.org; helo=mail.eeg.ccf.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/01 08:32:24 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.399, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: <20200901123222.GV931@eeg.ccf.org> X-Mailman-Original-References: <1598951673480-0.post@n7.nabble.com> Xref: csiph.com gnu.bash.bug:16881 On Tue, Sep 01, 2020 at 02:14:33AM -0700, almahdi wrote: > How to get last commnda history line number purely & directly on bash script > or prompt ? > > as it's pure & directly viable in PS1 env. var. > PS1=`echo \!` > > confusingly bash 'mainstream' itself wasn't found way to do unicorn:~$ x='\!'; echo "${x@P}" 590 I don't know how you plan to *use* this, though. It sounds like an X-Y problem to me.