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Full Discussion: Cut not working in a loop
Top Forums UNIX for Dummies Questions & Answers Cut not working in a loop Post 302367753 by methyl on Tuesday 3rd of November 2009 10:53:32 AM
Old 11-03-2009
The syntax in this commented-out line is along the right lines but needed to preserve spaces in ${1}.
Quote:
#tfile= `echo "${1}" |cut -f2 -d ' '`
In this line (and many similar lines in the script) program "cut" is expecting ${line0} to contain a filename not a string ... hence "cannot open".
Quote:
lineValue2=`cut -f2 -d ' ' ${line0}`
I think that this will be an improvement:
Code:
lineValue2=`echo "${line0}"|cut -f2 -d ' '`

Then apply the same syntax shift to other similar lines.

By the way, neither of the two functions in the script are actually executed but we can see that most of the code is in the while loop.


You will need to preserve spaces whenever there is more than one field. Though there is little point in copying ${line0}, this line needs quotes.
lineValue1="${line0}"


What is the expected output of the script?
Last edited by methyl; 11-03-2009 at 12:27 PM..
 

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LEARN ABOUT NETBSD

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
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