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Full Discussion: How to escape colon sign from variable in shell?
Top Forums Shell Programming and Scripting How to escape colon sign from variable in shell? Post 303023253 by RudiC on Thursday 13th of September 2018 11:13:57 AM
Old 09-13-2018
That missing n could indicate some non-printing control char in your input file. Sure there's none? How did you create that file?


If you need the colons in your input file escaped, you could use

- "process substitution" for your input file, like done < <(sed 's/:/\\:/g' duration)
- "parameter expansion" for the COL2 variable, like inserting COL2=${COL2//:/\\:}; before the ffmpeg command.
This User Gave Thanks to RudiC For This Post:
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LEARN ABOUT PLAN9

pcp

PCP(9.1)																  PCP(9.1)

NAME

       pcp - copy pictures

SYNOPSIS

       fb/pcp [ -wx0 y0 x1 y1 ] [ -ox y ] [ -ttype ] [ -cchannels ] [ -Cchannels ] [ -mcolormap ] [ -M ] [ input [ output ] ]

DESCRIPTION

       Pcp  copies  the  input	picture (default standard input) to the output file (default standard output).	Options control the attributes and
       content of the output picture.

       -w x0 y0 x1 y1
	      causes only the given window of the input picture to be copied.  By default the whole picture is copied.

       -o x y causes the output picture's WINDOW= attribute to be translated by adding (x,y) to the input window coordinates.

       -t type
	      sets the TYPE= attribute of the output file.  The default is to use the input file's type.

       -c channels
	      causes only the given channels of the input picture to be copied.  The default is to copy all channels.  If channels not present	in
	      the  input  picture  are specified, they are computed in the ``most plausible'' way.  For example, a missing alpha channel is set to
	      255, and an m channel will be synthesized from rgb channels by computing NTSC luminance.	A 0 in channels causes a zero  channel	to
	      be written.

       -C channels
	      sets the output CHAN= attribute.	Channels must be the same length as the selected channels of the input picture.

       -m colormap
	      attaches the given color map to the output.

       -M     elides the color map from the output.

SOURCE

       /sys/src/fb/pcp.c

SEE ALSO

       picfile(9.6), cmap(9.6)

																	  PCP(9.1)
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