Re: fields in files
On Sun, 30 Jan 2011 11:26:16 +, Lisi wrote: In teh following: -rw-r--r-- 1 lisi lisi19503 2011-01-28 21:12 Etch_repositories.odt I can see eight pieces of information: permissions, directory or file (information that is also at the beginning of the permissions), owner, group (or group, owner), size, date, name of file or directory. What are these called? I have always called them fields, but it would appear that I am wrong to do so. directory/file user perms-group perms-others perms user-group size last modified timestamp file name I call them file attributes but not sure if that's the technical name though :-) Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/pan.2011.01.30.11.35...@gmail.com
Re: fields in files
On Sunday 30 January 2011 11:35:56 Camaleón wrote: On Sun, 30 Jan 2011 11:26:16 +, Lisi wrote: In teh following: -rw-r--r-- 1 lisi lisi19503 2011-01-28 21:12 Etch_repositories.odt I can see eight pieces of information: permissions, directory or file (information that is also at the beginning of the permissions), owner, group (or group, owner), size, date, name of file or directory. What are these called? I have always called them fields, but it would appear that I am wrong to do so. directory/file user perms-group perms-others perms user-group size last modified timestamp file name I call them file attributes but not sure if that's the technical name though :-) Thanks, Camaleón! Yes ,that it what they are in this context. But in more general terms, like page, chapter, section etc., rather than the names of that particular page etc. - what are they called? I want to use it with cut if possible, but can't even find if there is a suitable option when I don't know what they are called. Column is too narrow (in the physical sense) a definition. There are 21 of what cut calls columns in the name of the file alone in this sample! Lisi -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201101301218.39391.lisi.re...@gmail.com
Re: fields in files
Hi Lisi, On Sun, Jan 30, 2011 at 12:18:39PM +, Lisi wrote: On Sunday 30 January 2011 11:35:56 Camaleón wrote: On Sun, 30 Jan 2011 11:26:16 +, Lisi wrote: In teh following: -rw-r--r-- 1 lisi lisi19503 2011-01-28 21:12 Etch_repositories.odt I can see eight pieces of information: permissions, directory or file (information that is also at the beginning of the permissions), owner, group (or group, owner), size, date, name of file or directory. What are these called? I have always called them fields, but it would appear that I am wrong to do so. directory/file user perms-group perms-others perms user-group size last modified timestamp file name I call them file attributes but not sure if that's the technical name though :-) Thanks, Camaleón! Yes ,that it what they are in this context. But in more general terms, like page, chapter, section etc., rather than the names of that particular page etc. - what are they called? I want to use it with cut if possible, but can't even find if there is a suitable option when I don't know what they are called. Column is too narrow (in the physical sense) a definition. There are 21 of what cut calls columns in the name of the file alone in this sample! Is that what you want to achieve? ls -l | sed -e 's/ */ /g' | cut -f 8 -d This gives the 8's element in the line, that is the filename. I used sed to replace multiple spaces by a single one, and then cut to select an appropriate element Axel -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110130124532.GJ22032@axel
Re: fields in files
On Sun, 30 Jan 2011 12:18:39 +, Lisi wrote:
On Sunday 30 January 2011 11:35:56 Camaleón wrote:
I call them file attributes but not sure if that's the technical name
though :-)
Thanks, Camaleón! Yes ,that it what they are in this context. But in
more general terms, like page, chapter, section etc., rather than the
names of that particular page etc. - what are they called? I want to
use it with cut if possible, but can't even find if there is a suitable
option when I don't know what they are called. Column is too narrow (in
the physical sense) a definition. There are 21 of what cut calls
columns in the name of the file alone in this sample!
Ah!
In the cut context they are called fields as you said, yep. But
better if you put and example of what do you want to get and why the
name it is relevant to this case. Hum, oh... maybe something like this?
sm01@stt008:~$ ls -l | awk '{print $9}'
Desktop
Documentos
file:
News
PDF
Greetings,
--
Camaleón
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Re: fields in files
On Du, 30 ian 11, 12:47:43, Camaleón wrote:
sm01@stt008:~$ ls -l | awk '{print $9}'
Desktop
Documentos
file:
News
PDF
No need for awk, ls will do that with the -1 (the digit 1) option or by
default if the output is not a terminal (ex. a pipe).
Regards,
Andrei
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Re: fields in files - thanks! :-)
Thanks so much all of you. I am rushing to go out, but will get straight back on this when I get back and start using - or at least analysing - what you have so kindly given me. Lisi -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201101301310.51446.lisi.re...@gmail.com
Re: fields in files
Lisi writes: Thanks, Camaleón! Yes ,that it what they are in this context. But in more general terms, like page, chapter, section etc., rather than the names of that particular page etc. - what are they called? The appropriate context is database. They are fields. The line is a record. -- John Hasler -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/874o8qv7kj@thumper.dhh.gt.org
Re: fields in files
On Sun, Jan 30, 2011 at 02:53:14PM +0200, Andrei Popescu wrote:
On Du, 30 ian 11, 12:47:43, Camaleón wrote:
sm01@stt008:~$ ls -l | awk '{print $9}'
Desktop
Documentos
file:
News
PDF
No need for awk, ls will do that with the -1 (the digit 1) option or by
default if the output is not a terminal (ex. a pipe).
Also stat command is quite handy to get file attribute information
directly in a format you wish :-)
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Re: fields in files
On Sun, 30 Jan 2011 14:53:14 +0200, Andrei Popescu wrote:
On Du, 30 ian 11, 12:47:43, Camaleón wrote:
sm01@stt008:~$ ls -l | awk '{print $9}'
Desktop
Documentos
file:
News
PDF
No need for awk, ls will do that with the -1 (the digit 1) option or by
default if the output is not a terminal (ex. a pipe).
To get the filename, yes, but how about if you want to fetch a fancy file
attributes combo output? :-)
sm01@stt008:~$ ls -l --full-time | awk '{print $6, $9}'
2011-01-30 Desktop
2010-05-16 Documentos
2009-11-14 file:
2009-12-27 News
2010-12-02 PDF
Greetings,
--
Camaleón
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Re: fields in files
On 20110130_134532, Axel Freyn wrote: Hi Lisi, On Sun, Jan 30, 2011 at 12:18:39PM +, Lisi wrote: On Sunday 30 January 2011 11:35:56 Camaleón wrote: On Sun, 30 Jan 2011 11:26:16 +, Lisi wrote: In teh following: -rw-r--r-- 1 lisi lisi19503 2011-01-28 21:12 Etch_repositories.odt I can see eight pieces of information: permissions, directory or file (information that is also at the beginning of the permissions), owner, group (or group, owner), size, date, name of file or directory. What are these called? I have always called them fields, but it would appear that I am wrong to do so. directory/file user perms-group perms-others perms user-group size last modified timestamp file name I call them file attributes but not sure if that's the technical name though :-) Thanks, Camaleón! Yes ,that it what they are in this context. But in more general terms, like page, chapter, section etc., rather than the names of that particular page etc. - what are they called? I want to use it with cut if possible, but can't even find if there is a suitable option when I don't know what they are called. Column is too narrow (in the physical sense) a definition. There are 21 of what cut calls columns in the name of the file alone in this sample! Is that what you want to achieve? ls -l | sed -e 's/ */ /g' | cut -f 8 -d This give the file name field. An alternative is: ls -l | tr -s ' ' | cut -f 8 -d ' ' But beware. If the file name contains embedded space(s), it will give only the leading part up to the first space. To get the whole file name, use: ls -l | tr -s ' ' | cut -f 8- -d ' ' If you are interested in processing the date and time fields, be aware that the detailed format that is used depends on how old the file is at the time of execution of 'ls'. I get around this pandering to human traditions by defining shell variable TIME_STYLE=+%Y%m%d_%H%M%S This combines date and time-of-day into a single field. A file of data about files using this, remains correct when reconstructed at a later date. A full-up geek design decision with no concession to human frailty would be to use TIME_STYLE=+%s This gives seconds since UNIX epoch. Which might be useful if you are collecting data from computers that are operating in different time zones. hth -- Paul E Condon pecon...@mesanetworks.net -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110130215903.gb19...@big.lan.gnu
Re: fields in files
On Sunday 30 January 2011 21:59:03 Paul E Condon wrote: On 20110130_134532, Axel Freyn wrote: Hi Lisi, On Sun, Jan 30, 2011 at 12:18:39PM +, Lisi wrote: On Sunday 30 January 2011 11:35:56 Camaleón wrote: On Sun, 30 Jan 2011 11:26:16 +, Lisi wrote: In teh following: -rw-r--r-- 1 lisi lisi19503 2011-01-28 21:12 Etch_repositories.odt I can see eight pieces of information: permissions, directory or file (information that is also at the beginning of the permissions), owner, group (or group, owner), size, date, name of file or directory. What are these called? I have always called them fields, but it would appear that I am wrong to do so. directory/file user perms-group perms-others perms user-group size last modified timestamp file name I call them file attributes but not sure if that's the technical name though :-) Thanks, Camaleón! Yes ,that it what they are in this context. But in more general terms, like page, chapter, section etc., rather than the names of that particular page etc. - what are they called? I want to use it with cut if possible, but can't even find if there is a suitable option when I don't know what they are called. Column is too narrow (in the physical sense) a definition. There are 21 of what cut calls columns in the name of the file alone in this sample! Is that what you want to achieve? ls -l | sed -e 's/ */ /g' | cut -f 8 -d This give the file name field. An alternative is: ls -l | tr -s ' ' | cut -f 8 -d ' ' But beware. If the file name contains embedded space(s), it will give only the leading part up to the first space. To get the whole file name, use: ls -l | tr -s ' ' | cut -f 8- -d ' ' If you are interested in processing the date and time fields, be aware that the detailed format that is used depends on how old the file is at the time of execution of 'ls'. I get around this pandering to human traditions by defining shell variable TIME_STYLE=+%Y%m%d_%H%M%S This combines date and time-of-day into a single field. A file of data about files using this, remains correct when reconstructed at a later date. A full-up geek design decision with no concession to human frailty would be to use TIME_STYLE=+%s This gives seconds since UNIX epoch. Which might be useful if you are collecting data from computers that are operating in different time zones. Thanks, Paul. :-) Lisi -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201101302257.16910.lisi.re...@gmail.com
