Issue with cat command on a for loop Post: 303038040

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If I have a data file containing entries like-> abc abc:123 and I use a for loop: for I in `cat data-file` do echo $I done the output would contain 2 lines -> abc.... and abc:123 but I want it to be on only one line. How can I do this? thanks

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Hi Experts, I am finding the performance of cat command is very wierd, it is taking more time to merge the files into a single file. We have a situation where we would be merging more than 100 files into a single file, but with cat command it is running slow. I tried doing with paste, join...

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Hi all, I need to create loop script to read full line and append a variable to each line. cat file I need the output like below 10.0.0.1,136 1 24 048800 id N4 No_Light 10.0.0.1,137 1 25 048900 id N4 No_Light 10.0.0.1,140 1 28 048c00 id N4 No_Light 10.0.0.1,262 1 38 048e80...

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limit.csv data -------------- 5600050 38Nhava 400077 27Bomay rate.txt data ------------- 38NhaVA 27BomaY 27Bomay below is my script: for i in `cat limit.csv` do b=`awk '{print $1}' $i`

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Script with ^M causes display issue with cat or more

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LEARN ABOUT FREEBSD

pnmdepth

pnmdepth(1)                                                   General Commands Manual                                                  pnmdepth(1)

NAME

       pnmdepth - change the maxval in a portable anymap

SYNOPSIS

       pnmdepth newmaxval [pnmfile]

DESCRIPTION

       Reads a portable anymap as input.  Scales all the pixel values, and writes out the image with the new maxval.  Scaling the colors down to a
       smaller maxval will result in some loss of information.

       Be careful of off-by-one errors when choosing the new maxval.  For instance, if you want the color values to be five bits wide, use a  max-
       val of 31, not 32.

       One  important  use  of pnmdepth is to convert a new format 2-byte-per-sample PNM file to the older 1-byte-per-sample format.  Before April
       2000, essentially all raw (binary) format PNM files had a maxval less than 256 and one byte per sample, and many programs may rely on that.
       If  you  specify  a  newmaxval  less than 256, the resulting file should be readable by any program that worked with PNM files before April
       2000.

SEE ALSO

       pnm(5), ppmquant(1), ppmdither(1)

AUTHOR

       Copyright (C) 1989, 1991 by Jef Poskanzer.

                                                                   08 April 2000                                                       pnmdepth(1)

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