Difference between cat , cat > , cat >> and touch !!! Post: 302199923

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cat and loop

Hi I have a simple code that I want to execute. out=out.txt for f in `cat list.txt | head -1`; do echo $f >> $out echo "sleep 5" >> $out done cat list.txt | head -1 wget -q -O - 'http://test.com:15100/cgi-bin/search cat out.txt wget sleep 5 -q sleep 5 -O

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for i in `cat myname.txt` && for y in `cat yourname.txt`

cat myname.txt John Doe I John Doe II John Doe III ----------------------------------------------------------------------- for i in `cat myname.txt` do echo This is my name: $i >> thi.is.my.name.txt done ----------------------------------------------------------------------- cat...

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Hello, So I sorted my file as I was supposed to: sort -n -r -k 2 -k 1 file1 | uniq > file2 and when I wrote > cat file2 in the command line, I got what I was expecting, but in the script itself ... sort -n -r -k 2 -k 1 averages | uniq > temp cat file2 It wrote a whole...

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for cat help

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Using cat and awk.......

Im trying to use cat and awk to calculate the total space, then display it using the print command. But something in my script is not correct? cat | awk '{print$1}' | sort -n | grep -v used | awk '{sum += $1} END { p rint sum;}' ??? Any help would be greatly appreciated!!

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Question regarding Cat

Can we concatenate say, I have a few files prefixing with 2009... So now i want all the 2009 files into one single file.. Can this be achieved????

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Help need on cat command

I have two files as below 1.txt AA 123 CC 145 DD 567 2.txt AA 111 YY 128 CC 144 FF 222 DD 777 ZZ 875 basically 1.txt is updated file, if i do cat 1.txt 2.txt output should be as below o/p

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Cat with << >>

Hi, When I was analyzing the code I got below line. cat - << 'EOF' >> ${FILE PATH} I surfed net to understand but I couldn't get what is about. Please help me out.

LEARN ABOUT XFREE86

cat

CAT(1)                                                             User Commands                                                            CAT(1)

NAME

       cat - concatenate files and print on the standard output

SYNOPSIS

       cat [OPTION]... [FILE]...

DESCRIPTION

       Concatenate FILE(s) to standard output.

       With no FILE, or when FILE is -, read standard input.

       -A, --show-all
              equivalent to -vET

       -b, --number-nonblank
              number nonempty output lines, overrides -n

       -e     equivalent to -vE

       -E, --show-ends
              display $ at end of each line

       -n, --number
              number all output lines

       -s, --squeeze-blank
              suppress repeated empty output lines

       -t     equivalent to -vT

       -T, --show-tabs
              display TAB characters as ^I

       -u     (ignored)

       -v, --show-nonprinting
              use ^ and M- notation, except for LFD and TAB

       --help display this help and exit

       --version
              output version information and exit

EXAMPLES

       cat f - g
              Output f's contents, then standard input, then g's contents.

       cat    Copy standard input to standard output.

AUTHOR

       Written by Torbjorn Granlund and Richard M. Stallman.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report cat translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       tac(1)

       Full documentation at: <http://www.gnu.org/software/coreutils/cat>
       or available locally via: info '(coreutils) cat invocation'

GNU coreutils 8.28                                                 January 2018                                                             CAT(1)

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

cat and loop

Discussion started by: soemac

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for i in `cat myname.txt` && for y in `cat yourname.txt`

Discussion started by: danimad

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'shutdown' and 'cat'

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cat in the command line doesn't match cat in the script

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Discussion started by: sickboy

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Using cat and awk.......

Discussion started by: bigben1220