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Diffstat (limited to 'doc/info/chap')
-rw-r--r-- | doc/info/chap/invoking.texinfo | 87 | ||||
-rw-r--r-- | doc/info/chap/overview.texinfo | 20 | ||||
-rw-r--r-- | doc/info/chap/strftime.texinfo | 161 |
3 files changed, 268 insertions, 0 deletions
diff --git a/doc/info/chap/invoking.texinfo b/doc/info/chap/invoking.texinfo new file mode 100644 index 0000000..25c0b25 --- /dev/null +++ b/doc/info/chap/invoking.texinfo @@ -0,0 +1,87 @@ +@node Invoking +@chapter Invoking + +@command{scrotty} recognises four options: + +@table @option +@item --help +Print usage information and exit. +@item --version +Print program name and version and exit. +@item --copyright +Print copyright information and exit. +@item --raw +Save the images in portable anymap format +(PNM), rather than in Portable Network +Graphics (PNG). If this option is used, +and no arguments for @command{convert} +is specified, @command{convert} will not +be used, and there will be not requirement +to have ImageMagick installed. + +PNM images are highly compressable with +@command{bzip2}. Compressed images are comparable +in size with @sc{PNG},@footnote{Usually a few +bytes in difference.} and can in fact be smaller. +@item --exec CMD +Run a command for each saved image. +@end table + +In addition to these options, a filename +pattern, that does not start with a dash, +can be added. This filename pattern selects +with what filename the image should be saved. + +Further, it is possible add @option{--} +followed by additional options to add when +@command{scrotty} spawns @command{convert}. + +Both the @option{--exec} and filename pattern +parameters can take format specifiers that are +expanded by @command{scrotty} when encountered. +There are two types of format specifier. +Characters preceded by a `%' are interpreted +by @code{strftime}. See @ref{strftime} or the +manual for your implemenation of @command{strftime} +for examples. These options may be used to refer +to the current date and time. The second kind are +internal to scrotty and are prefixed by `$' or +`\'. The following specifiers are recognised: + +@table @asis +@item `@code{$i}' +Framebuffer index. +@item `@code{$f}' +Image filename/pathname. +Ignored in the filename pattern. +@item `@code{$n}' +Image filename. +Ignored in the filename pattern. +@item `@code{$p}' +Image width multiplied by image height. +@item `@code{$w}' +Image width. +@item `@code{$h}' +Image height. +@item `@code{$$}' +Expands to a literal `$'. +@item `@code{\n}' +Expands to new line. +@item `@code{\\}' +Expands to a literal `\'. +@item `@code{\ }' +Expands to a literal ` '. +@end table + +A space that is not prefixed by a backslash in +@option{--exec} is interpreted as an argument +delimiter. This is the case even at the beginning +and end of the string and if a space was the +previous character in the string. + +For example, +@command{scrotty `%Y-%m-%d_$wx$h.$i.png` --exec 'cp $f ~/.backups/shots/'} +create a file called something like @file{2014-10-28_1792x1344.0.png} +for your first framebuffer and @file{2014-10-28_1792x1344.1.png} for +your second framebuffer, and copies the saved images to @file{~/.backups/shots/}. + diff --git a/doc/info/chap/overview.texinfo b/doc/info/chap/overview.texinfo new file mode 100644 index 0000000..f5d1ff3 --- /dev/null +++ b/doc/info/chap/overview.texinfo @@ -0,0 +1,20 @@ +@node Overview +@chapter Overview + +@command{scrotty} is a simple command for taking a screenshot +of your framebuffers. It can be used to take a screenshot of +your @sc{TTY} session, but it cannot take a screenshot of your +@sc{X} session.@footnote{Unless it is for some reason is +rendered on the framebuffer.} + +@command{scrotty} is designed after @command{scrot}, but +includes a some improvements. Namely it does not support +delaying the screenshot, selecting image quality or creating +thumbnails, but it has support for adding arbitrary arguments +to @command{convert} (from the ImageMagick project), which +is used to save the image. + +@command{scrotty} reads the data stored in the framebuffers, +convert it the @sc{PNM} images and pipes it to @command{convert} +to create @sc{PNG} images. + diff --git a/doc/info/chap/strftime.texinfo b/doc/info/chap/strftime.texinfo new file mode 100644 index 0000000..49fa224 --- /dev/null +++ b/doc/info/chap/strftime.texinfo @@ -0,0 +1,161 @@ +@node strftime +@chapter @code{strftime} + +@command{scrotty} uses @code{strftime}, which +implemented by the @sc{C} standard library (the +@sc{GNU} @sc{C} Library for most @sc{GNU}/Linux +user,) for formatting the filename or commands +with information about the current date and time. +If you are using the @sc{GNU} @sc{C} Library, +full documentation is available in +@ref{Formatting Calendar Time, Formatting Calendar Time, Formatting Calendar Time, libc, GNU C Library Application Fundamentals}. + +Assuming your have a @sc{POSIX}-compliant +implementation of @code{strftime}, at least the +following formatters are supported: + +@table @code +@item %a +The name of weekday in your locale, abbreviated. +For example `Tue'. +@item %A +The name of weekday in your locale. For example +`Tuesday'. +@item %b +@itemx %h +The name of month in your locale, abbreviated. +For example `Dec'. +@item %B +The name of month in your locale. For example +`December. +@item %c +Your locale's representation for the date and +time. For example `Tue 08 Dec 2015 09:40:34 CET'. +@item %C +The ``century'', or more precisely the year +divided by 100 and trucated to an integer. +Between year 2000 and 2099, inclusively, this +will be `20'. +@item %d +The day of the month in two digits. For example, +`08' during 8 of December. +@item %D +Equivalent to @code{%m/%d/%y}. For example +@code{12/08/15} for 8 of December 2015. + +Be aware, this not what expect in most of the +World, and its requires specialised sorting +algorithms to be sorted properly. Be also +aware, that this contains forward slashes, which +is used as the file delimiter. This is a poor +idea to use this for the filename. @code{%F} +is a better choice. +@item %e +The day of the month. If only one digit is +required, it is preceded by a space. For +example, ` 8' during 8 of December. +@item %F +Equivalent to @code{%+4Y-%m-%d}. For example +@code{2015-12-08} for 8 of December 2015. +@item %g +The last 2 digits of the week-based year. +@item %G +The week-based year. +@item %H +The hour in 24-hour clock format, 2 digits. +@item %-H +The hour in 24-hour clock format, as few digits as possible. +@item %I +The hour in 12-hour clock format, 2 digits. +@item %-I +The hour in 12-hour clock format, as few digits as possible. +@item %j +The day of the year in 3 digits. +For example @code{342} for 8 of December 2015. +@item %-j +The day of the year in as few digits as possible. +@item %m +The month in 2 digits. +For example @code{12} for 8 of December 2015. +@item %-m +The month in as few digits as possible. +@item %M +The minute in 2 digits. +@item %n +A new line. +@item %p +The locale's repesentation for either ante +meridiem or post meridiem. +@item %r +The time in 12-hour notation. The behaviour +is not completely specified. You will have +to try it out. It will probably include +the second and the timezone. +@item %R +The time, in minute resolution, in 24-hour +notation.@footnote{Yes, this is barely similar to +@code{%r}.} +@item %S +The second, in too digits. Currently leap-seconds +are not supported, and @sc{POSIX} does not specify +that double positive leap-seconds are +possible@footnote{Probably because they are avoided.}. +@item %t +A tab space. +@item %T +Equivalent to @code{%H:%M:%S}. +@item %u +The weekday as a number, starting with Monday as 1. +@item %U +The week number of the year, 2 digits. +The first Sunday of January is the first day of +week 1. Week 0 is possible. +@item %-U +Equivalent to @code{-U}, except in as few digits +as possible. +@item %V +The week number of the year, 2 digits. +IF week containing 1 of January has at least four +days in the new year, it is week 1. Week 0 is +impossible. +@item %-V +Equivalent to @code{-V}, except in as few digits +as possible. +@item %w +The weekday as a number, starting with Sunday as 0. +@item %W +The week number of the year, 2 digits. +The first Monday of January is the first day of +week 1. Week 0 is possible. +@item %-W +Equivalent to @code{-W}, except in as few digits +as possible. +@item %x +The locale's representation of the date. This +may be equivalent or similar to @code{%F} and +thus a poor idea to use, if so. +@item %X +The locale's representation of the time. +@item %y +The last two digits in the year. (And at least two digits.) +@item %Y +The year with as many digits as necessary. +@item %z +The offset of the timezone from UTC. Either +@code{+hhmm} or @code{-hhmm} (starts with a hyphen.) +@item %Z +The name of the timezone, abbreviation. +@item %% +A literal `%'. +@end table + +Note, this is not all that @sc{POSIX} specifies, +but it is the basics. @sc{POSIX} does not specify +any support for 6-hour clocks, for Saturday as the +first day of the week (or Tuesay through Friday,) or +Sunday to be represented by 1 or Monday as 0. If you +need any of these, you should look into the +specifications for your @sc{C} standard libraries +implementation of @code{strftime}, which may or may +nor support this. + |