jad@hpcndnm.cnd.hp.com (John Dilley) (10/16/90)
In article <40852@eerie.acsu.Buffalo.EDU> cloos@acsu.buffalo.edu (James H. Cloos) writes: >If anyone can show me a simpler way to do this (the simplest?) I'd be >very appreciative: >uncompress `du -a . | egrep .Z | awk '{print $2}' -` This is probably the simplest and fastest (and safest): $ find . -type f -name '*.Z' -print | xargs uncompress or, if you don't have many files, this will work: $ uncompress `find . -type f -name '*.Z' -print` Note that your original scheme would have tried to uncompress a directory named foo.Z -- given, that's not likely and would not have been tragic. I'm just in the habit of writing production code ;-) You could have also reduced your pipeline using this: $ uncompress `ls -R | fgrep .Z` The most important thing, IMHO, is losing the awk -- you pay a high overhead for not doing much with it. Also, if you've got a system on which egrep is faster than fgrep (ugh), don't use fgrep, as shown above. My fgrep is actually aliased to the Boyer-Moore fast grep (a.k.a. bm). Good luck to you in your massive uncompression ;-) -- jad -- John Dilley Hewlett-Packard Colorado Networks Division UX-mail: jad@cnd.hp.com Phone: (303) 229-2787 -- This is not an official statement from Hewlett-Packard Corp., and does not necessarily reflect the official position of HP. The information above is provided in good faith but completely without warranty of any kind.
cloos@acsu.buffalo.edu (James H. Cloos) (10/16/90)
If anyone can show me a simpler way to do this (the simplest?) I'd be
very appreciative:
uncompress `du -a . | egrep .Z | awk '{print $2}' -`
Thnaks.
(& for those novices herein, yes, it does work. :)
-JimC
--
James H. Cloos, Jr. Phone: +1 716 673-1250
cloos@acsu.buffalo.edu Snail: PersonalZipCode: 14048-0772, USA
rutgers!ub!clooscpcahil@virtech.uucp (Conor P. Cahill) (10/16/90)
In article <40852@eerie.acsu.Buffalo.EDU> cloos@acsu.buffalo.edu (James H. Cloos) writes: >If anyone can show me a simpler way to do this (the simplest?) I'd be >very appreciative: > >uncompress `du -a . | egrep .Z | awk '{print $2}' -` find . -name "*.Z" -print | xargs uncompress -- Conor P. Cahill (703)430-9247 Virtual Technologies, Inc., uunet!virtech!cpcahil 46030 Manekin Plaza, Suite 160 Sterling, VA 22170
larry@focsys.uucp (Larry Williamson) (10/16/90)
In article <40852@eerie.acsu.Buffalo.EDU> James H. Cloos writes: > uncompress `du -a . | egrep .Z | awk '{print $2}' -` find . -name '*.Z' -exec uncompress \{\} \; -Larry
subbarao@bow.Princeton.EDU (Kartik Subbarao) (10/16/90)
In article <40852@eerie.acsu.Buffalo.EDU> cloos@acsu.buffalo.edu (James H. Cloos) writes: >If anyone can show me a simpler way to do this (the simplest?) I'd be >very appreciative: > >uncompress `du -a . | egrep .Z | awk '{print $2}' -` > This solution does not have two pipes, but I'm not sure if it's faster. Intuitively, I'd do: find . -name \*.Z -exec uncompress "{}" \; Hope this helps. -Kartik (I need a new .signature -- any suggestions?) subbarao@{phoenix or gauguin}.Princeton.EDU -|Internet kartik@silvertone.Princeton.EDU (NeXT mail) -| SUBBARAO@PUCC.BITNET - Bitnet
ronald@atcmp.nl (Ronald Pikkert) (10/17/90)
From article <40852@eerie.acsu.Buffalo.EDU>, by cloos@acsu.buffalo.edu (James H. Cloos): > If anyone can show me a simpler way to do this (the simplest?) I'd be > very appreciative: > > uncompress `du -a . | egrep .Z | awk '{print $2}' -` Try this: find . -name "*.Z" -exec uncompress {} \; - Ronald Pikkert E-mail: ronald@atcmp.nl @ AT Computing b.v. Tel: 080 - 566880 Toernooiveld 6525 ED Nijmegen
wangh@beasley.CS.ORST.EDU ( ) (10/17/90)
In article <40852@eerie.acsu.Buffalo.EDU> cloos@acsu.buffalo.edu (James H. Cloos) writes: >If anyone can show me a simpler way to do this (the simplest?) I'd be >very appreciative: > >uncompress `du -a . | egrep .Z | awk '{print $2}' -` > >Thnaks. > >(& for those novices herein, yes, it does work. :) > Easy. uncompressdir . In case you don't have uncompressdir, there is another way find . -name "*".Z -exec uncompress {} \; >-JimC >-- >James H. Cloos, Jr. Phone: +1 716 673-1250 >cloos@acsu.buffalo.edu Snail: PersonalZipCode: 14048-0772, USA >rutgers!ub!cloos wangh@ucs.orst.edu
ires@kaspar.UUCP (Bruce R. Larson) (10/17/90)
In article <40852@eerie.acsu.Buffalo.EDU>, cloos@acsu.buffalo.edu (James H. Cloos) writes: > If anyone can show me a simpler way to do this (the simplest?) I'd be > very appreciative: > > uncompress `du -a . | egrep .Z | awk '{print $2}' -` > How about this using SysV's /bin/find find . -name \*.Z -print -exec uncompress {} \; or this using either GNU's or BSD's find find . -name \*.Z -exec uncompress {} \; Bruce blarson%kaspar.UUCP@cs.umb.edu Integral Resources, Milton MA
guy@auspex.auspex.com (Guy Harris) (10/18/90)
>How about this using SysV's /bin/find > > find . -name \*.Z -print -exec uncompress {} \; > >or this using either GNU's or BSD's find > > find . -name \*.Z -exec uncompress {} \; > The only difference between the two examples is the presence of the "-print" option. The S5 "find" version should work without the "-print", and the BSD (and presumably GNU) version should work with it. (The BSD and S5 "find" are both recognizably descendants of the same older "find".) Put it in iff you want "find" to announce the names of all the files that it's feeding to "uncompress"....
ian@dms.cdc.com (Ian Hogg) (10/18/90)
In article <40852@eerie.acsu.Buffalo.EDU> cloos@acsu.buffalo.edu (James H. Cloos) writes: >If anyone can show me a simpler way to do this (the simplest?) I'd be >very appreciative: > >uncompress `du -a . | egrep .Z | awk '{print $2}' -` > How about this: find . -name \*.Z -exec uncompress {} \; -- Ian Hogg x-4484
mason@oct1.UUCP (David Mason) (10/18/90)
In article <40852@eerie.acsu.Buffalo.EDU> cloos@acsu.buffalo.edu (James H. Cloos) writes: >If anyone can show me a simpler way to do this (the simplest?) I'd be >very appreciative: > >uncompress `du -a . | egrep .Z | awk '{print $2}' -` How about find . -name \*.Z -print | xargs uncompress Saves du'ing all the files, prevents the possibility of having an argument string that is too long, and is probably more readable. -------------------- David | mason@oct1.UUCP (David Mason) | olsa99!oct1!mason@ddsw1.mcs.com ~~~~~~~ Has your C2 locked you out today? ~~~~~~~
shore@mtxinu.COM (Melinda Shore) (10/23/90)
In article <1990Oct18.163200.2151@oct1.UUCP> mason@oct1.UUCP (David Mason) writes: >How about > >find . -name \*.Z -print | xargs uncompress Or find . -name '*.Z' -exec uncompress {} \; I've seen plenty of systems that don't have xargs, but I've never seen find without an -exec option. -- Melinda Shore shore@mtxinu.com mt Xinu ..!uunet!mtxinu.com!shore