function OpenWin(url, w, h) { if(!w) w = 400; if(!h) h = 300; window.open(url, "_new", "width=" + w + ",height=" + h + ",menubar=no,toobar=no,scrollbars=yes", true); }
Book: LPI Linux Certification in a Nutshell Section: Chapter 24. Exam 102 Highlighter's Index
24.4 Text-Editing, Processing, and Printing 24.4.1 Objective 1: Perform Basic File-Editing Operations Using vi Table 24-2. Basic vi Editing Commands ZZ | Write the file contents (if changed) and quit. | :x | Write the file contents (if changed) and quit (the ex equivalent of ZZ). | :q | Quit without saving changes. | :q! | Quit without saving changes and without confirmation. | :n | Next file. When multiple files are specified for editing, this command loads the next file. | Esc (the Escape key) | Exit insert mode and put the editor back into command mode. | h | Left one character. | j | Down one line. | k | Up one line. | l (ell) | Right one character. | 0 (zero) | Beginning of the current line. | ^ | First non-whitespace character on the current line. | $ | End of the current line. | H | Top of the screen. | L | Bottom of the screen. | G | End-of-file. | Ctrl-F | Down one screen. | Ctrl-B | Up one screen. | i | Enter insert mode to place text before the cursor. | a | Enter insert mode to place text after the cursor (append). This is necessary at the ends of lines. | C | Delete to end-of-line and enter insert mode. | R | Enter replace mode (a variant of insert mode) and overwrite existing characters. | dm | Delete a text block defined by a movement command m relative to the location where the command started. | dd | Delete the entire current line. | D | Delete to end-of-line (same as d$) | ym | Yank (copy) a text block defined by a movement command m relative to the location where the command started. | yy | Yank the entire current line. | P | Paste text on a line before the cursor. | p | Paste text on a line after the cursor. | /pattern | Search forward for pattern. | ?pattern | Search backward for pattern. | n | Repeat the last search. | N | Repeat the last search in the opposite direction. | 24.4.2 Objective 2: Manage Printers and Print Queues -
Printers are assigned to queues, which are managed by lpd , the print daemon. lpd listens for inbound print requests, forking a copy of itself for each active print queue. -
lpr submits jobs to print queues. -
lpq queries and displays queue status. -
lprm allows jobs to be removed from print queues. -
lpc allows root to administer queues; it has both interactive and command-line forms. -
filters translate data formats into a printer definition language. -
Spool directories hold spooled job data. 24.4.3 Objective 3: Print Files # lpr /etc/lilo.conf # man -t 5 myfile.txt | lpr -Pqueue2 24.4.4 Objective 4: Install and Configure Local and Remote Printers 24.4.4.1 /etc/printcap -
New printer definitions are added to /etc/printcap: lp|ljet:\ :sd=/var/spool/lpd/lp:\ :mx#0:\ :sh:\ :lp=/dev/lp0:\ :if=/var/spool/lpd/lp/filter: :lf=/var/spool/lpd/lp/log: The lines in this example are defined as follows: - lp|ljet:\
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This parameter defines two alternate names for the printer, lp or ljet. - sd=spool_directory
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This parameter specifies the spool directory, under /var/spool/lpd. - mx=max_size
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The maximum size of a print job in blocks. Setting this to #0 indicates no limit. - sh
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Suppress header pages. Placing this attribute in printcap sets it, eliminating the headers. - lp=printer_device
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The local printer device, such as a parallel port. - if=input_filter
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The input filter to be used. See Section 24.4.4.2 for additional information. - lf=log_file
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The file where error messages are logged. 24.4.4.2 Filters -
APSfilter is implemented as executable scripts. Installation configures /etc/printcap automatically. Multiple queues may be defined to give the user access to specific printer capabilities. -
Magicfilter is a binary program; installation does not automatically create print queues. 24.4.4.3 Remote queues and Samba printers -
Printing on a remote system or network printer is done through a local queue. /etc/printcap for the local queue looks something like this: rlp:\ :sd=/var/spool/lpd/rlp:\ :rm=lphost:\ :rp=rlp:\ :mx#0:\ :sh:\ :if=/usr/local/bin/magicfilter: -
Printing to Windows printers is similar and uses the smbprint filter: winpr:\ :sd=/var/spool/lpd/winpr:\ :mx#0:\ :sh:\ :if=/usr/bin/smbprint: | | |
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