What are the files with the “.O” extension in `/etc/cups/ppd` used for?
I would like to know what the duplicate files in /etc/cups/ppd with .O suffixed mean and what they are used for (opposed to the ones without suffix). For example:
$ ls /etc/cups/ppd
-rw-r--r--. 1 root lp 9912 Jan 5 12:56 prt1.ppd
-rw-r--r--. 1 root lp 9878 Jan 5 12:51 prt1.ppd.O
-rw-r--r--. 1 root lp 1311 Jan 6 15:21 prt2.ppd
-rw-r--r--. 1 root lp 1311 Jan 6 15:24 prt2.ppd.O
drivers printing cups-lpd
asked Oct 26 '18 at 6:41
JarlJarl
1376
add a comment |
I would like to know what the duplicate files in /etc/cups/ppd with .O suffixed mean and what they are used for (opposed to the ones without suffix). For example:
$ ls /etc/cups/ppd
-rw-r--r--. 1 root lp 9912 Jan 5 12:56 prt1.ppd
-rw-r--r--. 1 root lp 9878 Jan 5 12:51 prt1.ppd.O
-rw-r--r--. 1 root lp 1311 Jan 6 15:21 prt2.ppd
-rw-r--r--. 1 root lp 1311 Jan 6 15:24 prt2.ppd.O
drivers printing cups-lpd
asked Oct 26 '18 at 6:41
JarlJarl
1376
There is a similar question on Red Hat: access.redhat.com/solutions/2123691
– Jarl
Oct 26 '18 at 6:42
1
... and on U&L: Why are there .O files in /etc/cups?
– steeldriver
Oct 26 '18 at 7:43
Ask your system? Ubuntu and any GNU/Linux or unix system use the contents of files (not part of the name [extension]) to dictate what type of file it is.file prt1.ppd.Oshould tell you what they contain. The actual '.o' means nothing except it's part of the filename.
– guiverc
Oct 26 '18 at 8:25
add a comment |
I would like to know what the duplicate files in /etc/cups/ppd with .O suffixed mean and what they are used for (opposed to the ones without suffix). For example:
$ ls /etc/cups/ppd
-rw-r--r--. 1 root lp 9912 Jan 5 12:56 prt1.ppd
-rw-r--r--. 1 root lp 9878 Jan 5 12:51 prt1.ppd.O
-rw-r--r--. 1 root lp 1311 Jan 6 15:21 prt2.ppd
-rw-r--r--. 1 root lp 1311 Jan 6 15:24 prt2.ppd.O
drivers printing cups-lpd
asked Oct 26 '18 at 6:41
JarlJarl
1376
I would like to know what the duplicate files in /etc/cups/ppd with .O suffixed mean and what they are used for (opposed to the ones without suffix). For example:
$ ls /etc/cups/ppd
-rw-r--r--. 1 root lp 9912 Jan 5 12:56 prt1.ppd
-rw-r--r--. 1 root lp 9878 Jan 5 12:51 prt1.ppd.O
-rw-r--r--. 1 root lp 1311 Jan 6 15:21 prt2.ppd
-rw-r--r--. 1 root lp 1311 Jan 6 15:24 prt2.ppd.O
drivers printing cups-lpd
drivers printing cups-lpd
asked Oct 26 '18 at 6:41
JarlJarl
1376
asked Oct 26 '18 at 6:41
JarlJarl
1376
edited Oct 26 '18 at 11:18
Jarl
asked Oct 26 '18 at 6:41
JarlJarl
1376
asked Oct 26 '18 at 6:41
JarlJarl
1376
asked Oct 26 '18 at 6:41
JarlJarl
1376
1376
There is a similar question on Red Hat: access.redhat.com/solutions/2123691
– Jarl
Oct 26 '18 at 6:42
1
... and on U&L: Why are there .O files in /etc/cups?
– steeldriver
Oct 26 '18 at 7:43
Ask your system? Ubuntu and any GNU/Linux or unix system use the contents of files (not part of the name [extension]) to dictate what type of file it is.file prt1.ppd.Oshould tell you what they contain. The actual '.o' means nothing except it's part of the filename.
– guiverc
Oct 26 '18 at 8:25
add a comment |
There is a similar question on Red Hat: access.redhat.com/solutions/2123691
– Jarl
Oct 26 '18 at 6:42
1
... and on U&L: Why are there .O files in /etc/cups?
– steeldriver
Oct 26 '18 at 7:43
Ask your system? Ubuntu and any GNU/Linux or unix system use the contents of files (not part of the name [extension]) to dictate what type of file it is.file prt1.ppd.Oshould tell you what they contain. The actual '.o' means nothing except it's part of the filename.
– guiverc
Oct 26 '18 at 8:25
There is a similar question on Red Hat: access.redhat.com/solutions/2123691
– Jarl
Oct 26 '18 at 6:42
There is a similar question on Red Hat: access.redhat.com/solutions/2123691
– Jarl
Oct 26 '18 at 6:42
1
1
... and on U&L: Why are there .O files in /etc/cups?
– steeldriver
Oct 26 '18 at 7:43
... and on U&L: Why are there .O files in /etc/cups?
– steeldriver
Oct 26 '18 at 7:43
Ask your system? Ubuntu and any GNU/Linux or unix system use the contents of files (not part of the name [extension]) to dictate what type of file it is.
file prt1.ppd.O should tell you what they contain. The actual '.o' means nothing except it's part of the filename.– guiverc
Oct 26 '18 at 8:25
Ask your system? Ubuntu and any GNU/Linux or unix system use the contents of files (not part of the name [extension]) to dictate what type of file it is.
file prt1.ppd.O should tell you what they contain. The actual '.o' means nothing except it's part of the filename.– guiverc
Oct 26 '18 at 8:25
add a comment |
1 Answer
1
active
oldest
votes
The .O files are created by the CUPS system whenever the printer configuration is changed, e.g., if /etc/cups/printers.conf is modified, the previous version is automatically saved as /etc/cups/printers.conf.O. This makes it easy to revert to a previously working configuration.
According to this U&L answer the
.Ostands foroldfileas indicated incups/scheduler/file.c:
oldfile[1024]; /* filename.O */
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The .O files are created by the CUPS system whenever the printer configuration is changed, e.g., if /etc/cups/printers.conf is modified, the previous version is automatically saved as /etc/cups/printers.conf.O. This makes it easy to revert to a previously working configuration.
According to this U&L answer the
.Ostands foroldfileas indicated incups/scheduler/file.c:
oldfile[1024]; /* filename.O */
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
add a comment |
The .O files are created by the CUPS system whenever the printer configuration is changed, e.g., if /etc/cups/printers.conf is modified, the previous version is automatically saved as /etc/cups/printers.conf.O. This makes it easy to revert to a previously working configuration.
According to this U&L answer the
.Ostands foroldfileas indicated incups/scheduler/file.c:
oldfile[1024]; /* filename.O */
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
add a comment |
The .O files are created by the CUPS system whenever the printer configuration is changed, e.g., if /etc/cups/printers.conf is modified, the previous version is automatically saved as /etc/cups/printers.conf.O. This makes it easy to revert to a previously working configuration.
According to this U&L answer the
.Ostands foroldfileas indicated incups/scheduler/file.c:
oldfile[1024]; /* filename.O */
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
The .O files are created by the CUPS system whenever the printer configuration is changed, e.g., if /etc/cups/printers.conf is modified, the previous version is automatically saved as /etc/cups/printers.conf.O. This makes it easy to revert to a previously working configuration.
According to this U&L answer the
.Ostands foroldfileas indicated incups/scheduler/file.c:
oldfile[1024]; /* filename.O */
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
answered Jan 3 at 12:58
Anthony GeogheganAnthony Geoghegan
1,032916
1,032916
add a comment |
add a comment |
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There is a similar question on Red Hat: access.redhat.com/solutions/2123691
– Jarl
Oct 26 '18 at 6:42
1
... and on U&L: Why are there .O files in /etc/cups?
– steeldriver
Oct 26 '18 at 7:43
Ask your system? Ubuntu and any GNU/Linux or unix system use the contents of files (not part of the name [extension]) to dictate what type of file it is.
file prt1.ppd.Oshould tell you what they contain. The actual '.o' means nothing except it's part of the filename.– guiverc
Oct 26 '18 at 8:25