Basic awk help Post: 302774717

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Hi all, I have an awk basic question. file.text Our Location: Our home has light yellow siding, and is a duplex on Main Street, across from the High School, and across the lane from the Health Center If I run: cat file.txt | awk '{print $2}' | grep...

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Basic awk question...getting awk to act on $1 of the command itself

I have a script problem that I am not able to solve due my very limited understanding of unix/awk. This is the contents of test.sh awk '{print $1}' From the prompt if I enter: ./test.sh Hello World I would expect to see "Hello" but all I get is a blank line. Only then if I enter "Hello...

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I find an script with awk sitting around. I went through some online manuals, but I can't figure out exactly how it works. I can't post the whole program. Not allowed. This is the line that is confusing me. I get when else is in the script grep -v "^REM " $1| grep -v "JUNK;" | awk -F" "...

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Here's a basic awk program I am trying to run. It shows no error but shows no result either too. If someone can look up and tell me what's wrong I will be obliged. Thanks. :) Code Snippet. #!/bin/bash awk '{ for (i = 1 ; i <= 3 ; i++) for ( j = 1 ; j <= 3 ; j++ ) { ...

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Hi, Sorry if this is a newbie question. I guess you can use either awk or shell script for this sequence of operations, but knowing very little about either of them I'm not sure how I should try to write this. The basic objective is to copy certain files that are scattered all over my...

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Hi, I was trying to change the value of the 4th column (put '1' in the 4th column of each row). My awk command is: awk -F, '{$3=1;}1' OFS= input.txt > ./test_out.txt My input file is: a 1 2 31 b 4 5 61 c 7 8 91 My output file (test_out.txt)is: a 1 2 31 b 4 5 61 c 7 8 91 What...

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Confusing of some basic awk

1. increase file space first, double space a file: awk '1;{print ""}' I probably can understand it:print a blank line every time.But when I read triple space a file I am confused: awk '1;{print "\n"}' doesn't it meaning print a blank line every time too? 2. number each line of file, but...

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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)