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Big and Blue
*nix forums addict
Joined: 21 Feb 2005
Posts: 95
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 Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to display the each executed line of a shell script?
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Matt Benson wrote:
| Quote: | When I start (in ksh) a shell script test.sh
How do I let the shell interpreter display each line he will execute
just before he is really executing it.
The display should include the real content of variables.
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Can't see what this has to do with perl, but
set -x
--
Just because I've written it doesn't mean that
either you or I have to believe it. |
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Erkan Yanar
*nix forums beginner
Joined: 27 May 2005
Posts: 6
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to display the each executed line of a shell script?
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Am Wed, 9 Feb 2005 01:05:20 +0100,schrieb Matt Benson :
| Quote: | When I start (in ksh) a shell script test.sh
How do I let the shell interpreter display each line he will execute
just before he is really executing it.
The display should include the real content of variables.
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set -x
tschazu
erkan
--
über den grenzen muß die freiheit wohl wolkenlos sein |
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Nunya Bizness
*nix forums beginner
Joined: 22 Feb 2005
Posts: 14
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to create a formatted timestamp and use it in filename in a script?
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Ulf Meinhardt wrote:
| Quote: | I want to
1.) get the current timestamp (including milliseconds !)
2.) format it according to usual options and finally
3.) create a filename from it
All together it should be similar to:
myts=getTimestamp(dd.MM.yyyy_HH:mm:ss:ms)
myfilename=aaa_{$ts}.log
How do I do this in unix shell script ?
Ulf
You can use the date command to grab the current timestamp, but that is |
only going to get you to the second, not the millisecond.
I'm sure I have the wrong formatting characters below and I don't have
access to the man page for date right now but try something like this:
myts=`date "+%d.%m.%Y_%h:%m:%s"`
That should get you close. If you need to have milliseconds in the
string, you can always hardcode them to .00 |
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Heiner Steven
*nix forums Guru Wannabe
Joined: 19 Feb 2005
Posts: 170
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to find all files containing a certaing (text) string?
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Chris F.A. Johnson wrote:
| Quote: | On Tue, 01 Feb 2005 at 21:38 GMT, Alexander Skwar wrote:
· Bev A. Kupf <bevakupf@myhome.net>:
On Tue, 1 Feb 2005 19:52:04 +0100,
Viet Nguyen (downup@turtle.com) wrote:
I want to find all files matching *.log which contain the string "paul" inside.
Ok, the first part is clear:
find / -name "*.log" -type f -print
but how do I specify the second filter with "paul" ?
If you don't have a recursive grep (like GNU grep -- which was previously
suggested in this thread), you can use:
find / -name "*.log" -type f -print -exec grep -l paul {} \;
The "-print" is superflous.
Not in older versions of find.
[...] |
In combination with "-exec" print always was superfluous.
Recent "find" implementations use "-print" as a default action
if no other action was specified, but even old "find" would
call "-exec" if there was no "-print".
Heiner
--
___ _
/ __| |_ _____ _____ _ _ Heiner STEVEN <heiner.steven@nexgo.de>
\__ \ _/ -_) V / -_) ' \ Shell Script Programmers: visit
|___/\__\___|\_/\___|_||_| http://www.shelldorado.com/ |
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Heiner Steven
*nix forums Guru Wannabe
Joined: 19 Feb 2005
Posts: 170
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: how to send mail using shell script??
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ambs.tech@gmail.com wrote:
| Quote: | Hi all,
I am writing a program in C in which I need to read email addresses
from a file and mail the program to those email addresses. Is this
doable using shell script??? any help would be much appreciated.
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file="birthdaygreetings.txt"
subject="Invitation to my birthday party!"
while read address
do
mailx -s "$subject" "$address" < "$file"
done
Heiner
--
___ _
/ __| |_ _____ _____ _ _ Heiner STEVEN <heiner.steven@nexgo.de>
\__ \ _/ -_) V / -_) ' \ Shell Script Programmers: visit
|___/\__\___|\_/\___|_||_| http://www.shelldorado.com/ |
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Robert Bonomi
*nix forums Guru Wannabe
Joined: 23 Mar 2005
Posts: 175
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: Wanted: GNU utility (similar to sed) to edit text files directly.
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In article <ln1xc0ggun.fsf@nuthaus.mib.org>,
Keith Thompson <kst-u@mib.org> wrote:
| Quote: | bonomi@host122.r-bonomi.com (Robert Bonomi) writes:
[...]
Anything that edits 'in place' will have to _rewrite_ the file anyway,
Therefore there is _very_little_ performance penalty to using:
for file in $filelist ; do
sed -f {{commandfile}} $file > /tmp/$$.tmpfile && mv /tmp/$$.tmpfile $file
done
In fact, any _smart_ editor program does *exactly* that; to ensure that there
is always a 'good' copy of the file present -- if 'something bad happens'
_while_ the program is writing back into the _source_ file, then your *ONLY*
copy of the data is trashed. Not good. <grin
If you put the temp file in the same directory as the input file, the
"mv" will just be a rename rather than a copy.
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*Almost* correct. As long as source and destinaton are on the same
_filesystem_, 'mv' reduces to a rename.
| Quote: | For some applications,
it can be important to avoid having a partial copy of the file while
the copy is in progress; this avoids that. It's also more
fault-tolerant. |
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Jacob Turner
*nix forums beginner
Joined: 19 Feb 2005
Posts: 1
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to create a formatted timestamp and use it in filename in a script?
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Ulf Meinhardt wrote:
| Quote: | I want to
1.) get the current timestamp (including milliseconds !)
2.) format it according to usual options and finally
3.) create a filename from it
All together it should be similar to:
myts=getTimestamp(dd.MM.yyyy_HH:mm:ss:ms)
myfilename=aaa_{$ts}.log
How do I do this in unix shell script ?
Ulf
|
Well it depends on what shell you are using and what unix you are using.
Start with man date to get the options for the date command and work
from there. Milliseconds may be a problem for the date command on some
nix's though.
Jacob |
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Geoff Clare
*nix forums addict
Joined: 25 Feb 2005
Posts: 64
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: ksh: why use expr?
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Stephane CHAZELAS <this.address@is.invalid> wrote, on Wed, 02 Feb 2005:
| Quote: | tr is one of the rare command with which you can portably use
'\11' for <Tab
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It's not portable to EBCDIC-based systems, where <tab> would be '\5'.
--
Geoff Clare <netnews@gclare.org.uk> |
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Marty
*nix forums Guru
Joined: 16 Mar 2005
Posts: 660
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: [OT] Re: wildcard's in scripts
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2005-02-3, 09:28(+00), Chris F.A. Johnson:
[...]
| Quote: | Chris, as you appear to be using slrn, please note that you can
hist <Meta-p> or <Esc-p> to retrieve the article to which the
current article is replying.
I know that, and I do use it. But it's annoying, and with
intelligent quoting, unnecessary.
|
OK, agreed, I just thought that you might have been unaware of
that.
(BTW, HS (hors sujet) is the French equivalent of OT (off
topic), sorry for that).
regards,
Stéphane |
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Marty
*nix forums Guru
Joined: 16 Mar 2005
Posts: 660
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to find all files containing a certaing (text) string?
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2005-02-03, 01:22(+00), Keith Thompson:
[...]
| Quote: | find -print is simply not suited to xargs input. xargs expect a
very specific input format, not a newline separated list.
find / -name "*.log" -type f -print0 | xargs -0 grep -Hn paul
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Yes, which are GNU and BSD specific. And you may want to add the
"-r" option to xargs.
But,
find / -name "*.log" -type f -exec grep -n paul /dev/null {} +
may be more efficient and is POSIX.
--
Stéphane |
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Keith Thompson
*nix forums Guru
Joined: 28 Feb 2005
Posts: 5173
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: How to find all files containing a certaing (text) string?
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Stephane CHAZELAS <this.address@is.invalid> writes:
| Quote: | 2005-02-01, 14:04(-05), John-Paul Stewart:
[...]
Pipe the output to grep:
find / -name "*.log" -type f -print | xargs grep -Hn paul
That will not work correctly if the filenames contain blanks or
newlines or single or double quotes or backslashes.
find -print is simply not suited to xargs input. xargs expect a
very specific input format, not a newline separated list.
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find / -name "*.log" -type f -print0 | xargs -0 grep -Hn paul
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this. |
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Chris F.A. Johnson
*nix forums Guru
Joined: 20 Feb 2005
Posts: 2268
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: wildcard's in scripts
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On Wed, 02 Feb 2005 at 18:23 GMT, new2linux wrote:
| Quote: | Chris, which kind of quotes ? do you have an example ? i've actually
tried quotes, both single & double and it didn't work.
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Are you talking to me?
Please include relevant parts of the post so that I know what you
are referring to.
Also "it didn't work" tells me nothing about your problem. Post the
command you used and the results, and explain why they are not
what you wanted.
--
Chris F.A. Johnson http://cfaj.freeshell.org/shell
===================================================================
My code (if any) in this post is copyright 2005, Chris F.A. Johnson
and may be copied under the terms of the GNU General Public License |
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new2linuxos
*nix forums beginner
Joined: 10 Mar 2005
Posts: 13
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: wildcard's in scripts
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Chris, which kind of quotes ? do you have an example ? i've actually
tried quotes, both single & double and it didn't work. |
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Shekar
*nix forums beginner
Joined: 25 Feb 2005
Posts: 14
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: Bash echo issues
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Thanks every one. It looks like printf is working and also the echon()
routine is also great.
Thanks again.
Shekar |
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Keith Thompson
*nix forums Guru
Joined: 28 Feb 2005
Posts: 5173
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| Posted: Sat Feb 19, 2005 8:46 pm Post subject:
Re: Wanted: GNU utility (similar to sed) to edit text files directly.
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bonomi@host122.r-bonomi.com (Robert Bonomi) writes:
| Quote: | In article <ln1xc0ggun.fsf@nuthaus.mib.org>,
Keith Thompson <kst-u@mib.org> wrote:
bonomi@host122.r-bonomi.com (Robert Bonomi) writes:
[...]
Anything that edits 'in place' will have to _rewrite_ the file anyway,
Therefore there is _very_little_ performance penalty to using:
for file in $filelist ; do
sed -f {{commandfile}} $file > /tmp/$$.tmpfile && mv /tmp/$$.tmpfile $file
done
In fact, any _smart_ editor program does *exactly* that; to ensure
that there is always a 'good' copy of the file present -- if
'something bad happens' _while_ the program is writing back into
the _source_ file, then your *ONLY* copy of the data is trashed.
Not good. <grin
If you put the temp file in the same directory as the input file, the
"mv" will just be a rename rather than a copy.
*Almost* correct. As long as source and destinaton are on the same
_filesystem_, 'mv' reduces to a rename.
|
Right, and putting them in the same directory is the easiest way to
guarantee that they're on the same filesystem. (I wrote "If", not "If
and only if".)
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this. |
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