From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6404 invoked from network); 26 May 1999 20:24:19 -0000 Received: from sunsite.auc.dk (130.225.51.30) by ns1.primenet.com.au with SMTP; 26 May 1999 20:24:19 -0000 Received: (qmail 20332 invoked by alias); 26 May 1999 20:23:56 -0000 Mailing-List: contact zsh-users-help@sunsite.auc.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 2344 Received: (qmail 20319 invoked from network); 26 May 1999 20:23:56 -0000 Subject: variable containing the current command From: benjamin@cs.ualberta.ca To: zsh-users@sunsite.auc.dk Date: Wed, 26 May 1999 14:23:10 -0600 (MDT) X-Mailer: ELM [version 2.4ME+ PL53 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-Id: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> Is there a zsh environment variable that contains the current command so that it can be referenced in preexec() or precmd() (or ideally both)? e.g. precmd() { echo "Just did:$CURRENT_CMD" } preexec() { echo "Ready to do:$CURRENT_CMD" } localhost[1]% ls Ready to do:ls foo bar snafu tarfu Just did:ls localhost[2]% Ben -- Benjamin Korvemaker benjamin@cs.ualberta.ca I have yet to meet a C compiler that is more friendly and easier to use than eating soup with a knife. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6878 invoked from network); 26 May 1999 21:40:49 -0000 Received: from sunsite.auc.dk (130.225.51.30) by ns1.primenet.com.au with SMTP; 26 May 1999 21:40:49 -0000 Received: (qmail 6714 invoked by alias); 26 May 1999 21:40:30 -0000 Mailing-List: contact zsh-users-help@sunsite.auc.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 2345 Received: (qmail 6706 invoked from network); 26 May 1999 21:40:29 -0000 Date: Wed, 26 May 1999 17:40:44 -0400 From: Sweth Chandramouli To: zsh-users@sunsite.auc.dk Subject: Re: variable containing the current command Message-ID: <19990526174044.A7264@astaroth.nit.gwu.edu> Mail-Followup-To: zsh-users@sunsite.auc.dk References: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95i In-Reply-To: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> On Wed, May 26, 1999 at 02:23:10PM -0600, benjamin@cs.ualberta.ca wrote: > Is there a zsh environment variable that contains the current command > so that it can be referenced in preexec() or precmd() (or ideally both)? > > e.g. > > precmd() { echo "Just did:$CURRENT_CMD" } > preexec() { echo "Ready to do:$CURRENT_CMD" } > > localhost[1]% ls > Ready to do:ls > foo bar snafu tarfu > Just did:ls > localhost[2]% $_ is almost what you are looking for; it is supposed to be set for any command to the full name of that command. if you use it as you use CURRENT_CMD above, however, you get something like this: (astaroth/1)~: precmd() { echo "Just did:$_" } Just did:precmd (astaroth/2)~: preexec() { echo "Ready to do:$_" } Just did:preexec (astaroth/3)~: ls Ready to do:preexec appconfig Mail News public_html working bin mail news src www docs misc nohup.out tmp Just did:ls (astaroth/4)~: i could never figure out why it acts that way, though, so i've never really used it. -- sweth. -- Sweth Chandramouli IS Coordinator, The George Washington University / (202) 994 - 8521 (V) / (202) 994 - 0458 (F) * From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7181 invoked from network); 26 May 1999 22:18:03 -0000 Received: from sunsite.auc.dk (130.225.51.30) by ns1.primenet.com.au with SMTP; 26 May 1999 22:18:03 -0000 Received: (qmail 26751 invoked by alias); 26 May 1999 22:17:49 -0000 Mailing-List: contact zsh-users-help@sunsite.auc.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 2346 Received: (qmail 26744 invoked from network); 26 May 1999 22:17:47 -0000 From: "Bart Schaefer" Message-Id: <990526221741.ZM22768@candle.brasslantern.com> Date: Wed, 26 May 1999 22:17:41 +0000 In-Reply-To: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> Comments: In reply to benjamin@cs.ualberta.ca "variable containing the current command" (May 26, 2:23pm) References: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> <19990526174044.A7264@astaroth.nit.gwu.edu> In-Reply-To: <19990526174044.A7264@astaroth.nit.gwu.edu> Comments: In reply to Sweth Chandramouli "Re: variable containing the current command" (May 26, 5:40pm) X-Mailer: Z-Mail Lite (5.0.0 30July97) To: zsh-users@sunsite.auc.dk Subject: Re: variable containing the current command MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii On May 26, 2:23pm, benjamin@cs.ualberta.ca wrote: > Subject: variable containing the current command > Is there a zsh environment variable that contains the current command > so that it can be referenced in preexec() or precmd() (or ideally both)? In preexec, the positional parameter $1 holds the entire command line just as it was read from the terminal (after history expansion but before any other expansions/substitutions). You could have preexec copy this to a global parameter where precmd can see it later. On May 26, 5:40pm, Sweth Chandramouli wrote: > Subject: Re: variable containing the current command > $_ is almost what you are looking for; it is supposed to be set for > any command to the full name of that command. That's not quite correct. From the doc: `_' The last argument of the previous command. Also, this parameter is set in the environment of every command executed to the full pathname of the command. So it's only during the execution of a command that you can find the path of that command in $_. Once you're back in the shell (as during precmd), you get the last word of the previous command line (not the first; try your "ls" example with some file name arguments to "ls"). As for this: > (astaroth/3)~: ls > Ready to do:preexec I suspect it has something to do with how or when preexec is executed. PWS could tell us more, but he's out for a few days. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7464 invoked from network); 26 May 1999 22:51:00 -0000 Received: from sunsite.auc.dk (130.225.51.30) by ns1.primenet.com.au with SMTP; 26 May 1999 22:51:00 -0000 Received: (qmail 4774 invoked by alias); 26 May 1999 22:50:45 -0000 Mailing-List: contact zsh-users-help@sunsite.auc.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 2347 Received: (qmail 4767 invoked from network); 26 May 1999 22:50:45 -0000 From: "Michael Barnes" Date: Wed, 26 May 1999 18:50:39 -0400 To: zsh-users@sunsite.auc.dk Subject: Re: variable containing the current command Message-ID: <19990526185039.A10504@vt.edu> Mail-Followup-To: zsh-users@sunsite.auc.dk References: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> <19990526174044.A7264@astaroth.nit.gwu.edu> <990526221741.ZM22768@candle.brasslantern.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.1us In-Reply-To: <990526221741.ZM22768@candle.brasslantern.com>; from Bart Schaefer on Wed, May 26, 1999 at 10:17:41PM +0000 here is my preexec ~ which preexec preexec () { word=$* word=$word[(w)0] case $word in cd*|ls*) ;; *) print -Pn "\e]2;%n@%m $word \a" ;; esac } for some reason $1 does not get set properly under 3.0.5 extended so I manually parse it out from $*, dunno about newer versions. Mike On Wed, May 26, 1999 at 10:17:41PM +0000, Bart Schaefer wrote: > On May 26, 2:23pm, benjamin@cs.ualberta.ca wrote: > > Subject: variable containing the current command > > Is there a zsh environment variable that contains the current command > > so that it can be referenced in preexec() or precmd() (or ideally both)? > > In preexec, the positional parameter $1 holds the entire command line just > as it was read from the terminal (after history expansion but before any > other expansions/substitutions). > > You could have preexec copy this to a global parameter where precmd can > see it later. > > On May 26, 5:40pm, Sweth Chandramouli wrote: > > Subject: Re: variable containing the current command > > $_ is almost what you are looking for; it is supposed to be set for > > any command to the full name of that command. > > That's not quite correct. From the doc: > > `_' > The last argument of the previous command. Also, this parameter > is set in the environment of every command executed to the full > pathname of the command. > > So it's only during the execution of a command that you can find the path > of that command in $_. Once you're back in the shell (as during precmd), > you get the last word of the previous command line (not the first; try > your "ls" example with some file name arguments to "ls"). > > As for this: > > > (astaroth/3)~: ls > > Ready to do:preexec > > I suspect it has something to do with how or when preexec is executed. > PWS could tell us more, but he's out for a few days. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9844 invoked from network); 28 May 1999 23:14:07 -0000 Received: from sunsite.auc.dk (130.225.51.30) by ns1.primenet.com.au with SMTP; 28 May 1999 23:14:07 -0000 Received: (qmail 3056 invoked by alias); 28 May 1999 23:13:52 -0000 Mailing-List: contact zsh-users-help@sunsite.auc.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 2348 Received: (qmail 3049 invoked from network); 28 May 1999 23:13:51 -0000 Subject: Re: variable containing the current command In-Reply-To: <990526221741.ZM22768@candle.brasslantern.com> from Bart Schaefer at "May 26, 1999 10:17:41 pm" From: benjamin@cs.ualberta.ca To: zsh-users@sunsite.auc.dk Date: Fri, 28 May 1999 17:13:24 -0600 (MDT) X-Mailer: ELM [version 2.4ME+ PL53 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-Id: <19990528231330Z14058-10359+234@scapa.cs.ualberta.ca> Thanks. That's EXACTLY what I was looking for. Reading the man page carefully reveals that I am too stupid to live. :) Ben Bart Schaefer said: > On May 26, 2:23pm, benjamin@cs.ualberta.ca wrote: > > Subject: variable containing the current command > > Is there a zsh environment variable that contains the current command > > so that it can be referenced in preexec() or precmd() (or ideally both)? > > In preexec, the positional parameter $1 holds the entire command line just > as it was read from the terminal (after history expansion but before any > other expansions/substitutions). > > You could have preexec copy this to a global parameter where precmd can > see it later. > > On May 26, 5:40pm, Sweth Chandramouli wrote: > > Subject: Re: variable containing the current command > > $_ is almost what you are looking for; it is supposed to be set for > > any command to the full name of that command. > > That's not quite correct. From the doc: > > `_' > The last argument of the previous command. Also, this parameter > is set in the environment of every command executed to the full > pathname of the command. > > So it's only during the execution of a command that you can find the path > of that command in $_. Once you're back in the shell (as during precmd), > you get the last word of the previous command line (not the first; try > your "ls" example with some file name arguments to "ls"). > > As for this: > > > (astaroth/3)~: ls > > Ready to do:preexec > > I suspect it has something to do with how or when preexec is executed. > PWS could tell us more, but he's out for a few days. > -- Benjamin Korvemaker benjamin@cs.ualberta.ca The programmer's national anthem is 'AAAAAAAARRRRGHHHHH!!'. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 642 invoked from network); 31 May 1999 05:46:55 -0000 Received: from sunsite.auc.dk (130.225.51.30) by ns1.primenet.com.au with SMTP; 31 May 1999 05:46:55 -0000 Received: (qmail 22703 invoked by alias); 31 May 1999 05:46:44 -0000 Mailing-List: contact zsh-users-help@sunsite.auc.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 2352 Received: (qmail 22696 invoked from network); 31 May 1999 05:46:42 -0000 From: "Bart Schaefer" Message-Id: <990531054632.ZM1115@candle.brasslantern.com> Date: Mon, 31 May 1999 05:46:32 +0000 In-Reply-To: <19990526185039.A10504@vt.edu> Comments: In reply to "Michael Barnes" "Re: variable containing the current command" (May 26, 6:50pm) References: <19990526202314Z13566-3056+232@scapa.cs.ualberta.ca> <19990526174044.A7264@astaroth.nit.gwu.edu> <990526221741.ZM22768@candle.brasslantern.com> <19990526185039.A10504@vt.edu> X-Mailer: Z-Mail (5.0.0 30July97) To: "Michael Barnes" , zsh-users@sunsite.auc.dk Subject: Re: variable containing the current command MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii On May 26, 6:50pm, Michael Barnes wrote: } Subject: Re: variable containing the current command } } preexec () { } word=$* } word=$word[(w)0] } case $word in } cd*|ls*) ;; } *) print -Pn "\e]2;%n@%m $word \a" ;; } esac } } } } for some reason $1 does not get set properly under 3.0.5 extended so I } manually parse it out from $*, dunno about newer versions. I'm not sure why you say $1 does not get set properly. $1 gets set to the entire command line, which is exactly how it's documented: `preexec' Executed just after a command has been read and is about to be executed. If the history mechanism is active, the string to be executed is passed as an argument. ^^^^!!!!!!^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^!!^^^^^^^^^ Is that in fact what you see, or is there a bug that I can't reproduce? -- Bart Schaefer Brass Lantern Enterprises http://www.well.com/user/barts http://www.brasslantern.com