Obviously $( < filename ) copies the stream with a shell-internal, just like the external command $( cat < filename ) does.
For a concatenation of file1 and file2 you have to use the external command $( cat file1 file2 )
or a string concatenation like this:
Can you use cat to send the first 25 lines of a file to the printer? I'm thinking I can pipe it with '|' but I'm not school to check printer output.
With the 'nl' used, all lines are numbered on the print out, but how does one number only the blank lines?
Thanks:) (1 Reply)
Hi,
I wnat to read a fiel line by line and store each line in a variabel, so I made a for loop:
for i in `cat file` ; do
#do sth.
done;
The problem is, that in the file, there are lines with only asterisks like this... (3 Replies)
Not sure how to do this exactly.. just want to take the first 100 lines of a file and cat it out into a second file. I know I can do a more on a file and > it into a different file, but how can I make it so only the first 100 lines get moved over? (1 Reply)
I want to cat a file with only show the line contain '/bin/bash' but don't show the line contain 'load' (don't show if the line contain 'load' and '/bin/bash' together), how to type in the command? thk a lot! (2 Replies)
I am looking for a command to take files with a specific date and cat them all into big file. I know I can use commands to list all of the files from a certain date. But I want to do that and take those files and make on large files containing all of them.
Any help would be great. This is being... (1 Reply)
Hi,
I have two files
one.txt
laptop
boy
apple
two.txt
unix
linux
OS
openS
I want to split one.txt into one line each and concatenate it with the two.txt
output files
onea.txt
laptop (4 Replies)
Hi All,
I have stumbled upon very unique issue. In my script I am doing cat file and then greping and cutting so as to assign the value to variable. My file is,
<mxc_tl_load_extractdata_prop.bsh>
DB_USER=test_oper
hostname=xxx
FTP_USER=test1_operate
MAIL_LIST=xxx@yyy.com... (1 Reply)
Hello,
I'm on a remote computer by SSH. How can I get the output of "cat file" into a file on the local computer?
I cannot use scp, because it's blocked.
something like:
ssh root@remote_maschine "cat /file" > /locale_machine/file
:rolleyes: (2 Replies)
Discussion started by: borsti007
2 Replies
LEARN ABOUT ULTRIX
cat
cat(1) General Commands Manual cat(1)Name
cat - concatenate and print data
Syntax
cat [ -b ] [ -e ] [ -n ] [ -s ] [ -t ] [ -u ] [ -v ] file...
Description
The command reads each file in sequence and displays it on the standard output. Therefore, to display the file on the standard output you
type:
cat file
To concatenate two files and place the result on the third you type:
cat file1 file2 > file3
To concatenate two files and append them to a third you type:
cat file1 file2 >> file3
If no input file is given, or if a minus sign (-) is encountered as an argument, reads from the standard input file. Output is buffered in
1024-byte blocks unless the standard output is a terminal, in which case it is line buffered. The utility supports the processing of 8-bit
characters.
Options-b Ignores blank lines and precedes each output line with its line number.
-e Displays a dollar sign ($) at the end of each output line.
-n Precedes all output lines (including blank lines) with line numbers.
-s Squeezes adjacent blank lines from output and single spaces output.
-t Displays non-printing characters (including tabs) in output. In addition to those representations used with the -v option, all tab
characters are displayed as ^I.
-u Unbuffers output.
-v Displays non-printing characters (excluding tabs and newline) as the ^x. If the character is in the range octal 0177 to octal 0241,
it is displayed as M-x. The delete character (octal 0177) displays as ^?. For example, is displayed as ^X.
See Alsocp(1), ex(1), more(1), pr(1), tail(1)cat(1)