sed variable expansion fails for substitution in range Post: 302889796

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Hi Chaps... I have a log file as below:- 01 Oct 2009 12:57:56 DEBUG : 01 Oct 2009 12:14:21 DEBUG :..... . . . .05 Oct 2009 14:31:56 DEBUG :.... . . .05 Oct 2009 12:57:56 DEBUG :.... 06 Oct 2009 01:23:11 DEBUG :.... . . .06 Oct 2009 12:53:46 DEBUG :....

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Hello All, I don't write scripts very often, and in this case I am stumped, although it may be a bug in the version of bash I have to use (it's not my system). I want to extract a specific string snippet from a block of text (coming from a log file) that is dependent on a bunch of other...

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Hello, I searched the forum and unable to find a solution for my particular problem. I have a text file I'm trying to insert some text using sed after finding a pattern.. File contains in one line Invoice date: xx/xx/xxxx Balance: $$$$ Name: xxxxxxxxxxxxxx Trying to insert Invoice "Number:...

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Problem with the code below is that the value of the variable is not getting substituted in the sed expression. #/bin/csh set UNIX_ID="rajibd" set X_ID="xrajibd" sed -n 's/$UNIX_ID/$X_ID/g' passwd When run , it is not giving expected output as shown below : ...

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sed filtering lines by range fails 1-line-ranges

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Real-time scenarios where VARIABLE SUBSTITUTION/EXPANSION is useful

Hi, at academic level I am familiar with how variable substitution/expansion feature works. From your live experience, can you please tell what are real-time scenarios where ${variable:=} ${variable%pattern} ${variable:=word} sort of features can be used? How can we connect that dot that...

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Expansion of variable inside Single Quotes Fails!!

I am unable to expand the value of entry variable inside the nawk command. I tried three different nawk command as below but none of them substitute the value of entry variable. ls *.txt | while IFS='' read -r entry; do #nawk '/<name>/{A=1;++i} A{print >> ("cmd"i"_"$entry)}...

LEARN ABOUT DEBIAN

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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[Solved] Command Substitution and Variable Expansion within a Case

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