Regarding redirection using cat. Post: 302227345

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

redirection to tty** with cat

I tried to cat a file to another user that was logged in, but I received an error message that displayed something like: %cat funny > /dev/ttyp3 zsh: permission denied: /dev/ttyp3 Thank you all for your help

2. UNIX for Dummies Questions & Answers

Difference between cat , cat > , cat >> and touch !!!

Hi Can anybody tell the difference between Difference between cat , cat > , cat >> and touch command in UNIX? Thanks

3. Shell Programming and Scripting

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...

4. Shell Programming and Scripting

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

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...

5. UNIX for Dummies Questions & Answers

Help with Redirection

Hi Guys, I m new to UNIX and new to this forum. Was wondering if someone can help me understand redirection (standard input output pipeline etc) for starters, not too sure what this would mean who | sort > sortedfile | pr | lp im starting to understand common commands but when throwing...

6. Shell Programming and Scripting

I/O redirection

Hello everyone,I'm reading a book and there's code fragment: exec 3>&1 ls -l 2>&1 >&3 3>&- | grep bad 3>&- exec 3>&- It says that the red part of that code does not close fd 3 but the green does close the fd 3.I can't understand that.....Why?Any predicate will be appreciated.:)

7. Shell Programming and Scripting

Redirection

Hello All, I am using the below script to gather various tools running by the user, we have more than 100 tools running on the server so my challenge is to redirect memory & cpu load to the file with the name of the tool.so am using the below script i am stucking how to redirect to the file...

8. UNIX for Dummies Questions & Answers

about different redirection

explain the redirections 1>, 2>, 3>, ..... and 1< ,2<,3<..... where we use these things thanks Thread moved from AIX forum

9. Shell Programming and Scripting

Difficulty with CAT redirection in script

I have not been able to append the contents of many files into one file. I have executed the CAT command shown below separately substituting an actual path and file name for the array variable to verify that I have the syntax correct. The bottom line - nothing is happening with CAT. I am running...

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. UNIX for Dummies Questions & Answers

redirection to tty** with cat

Discussion started by: zorro

2. UNIX for Dummies Questions & Answers

Difference between cat , cat > , cat >> and touch !!!

Discussion started by: skyineyes

3. Shell Programming and Scripting

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

Discussion started by: danimad

4. Shell Programming and Scripting

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

Discussion started by: shira

5. UNIX for Dummies Questions & Answers

Help with Redirection

Discussion started by: jmack123

6. Shell Programming and Scripting

I/O redirection

Discussion started by: homeboy