11-09-2010
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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)
Discussion started by: bensky
3 Replies
2. UNIX for Dummies Questions & Answers
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)
Discussion started by: LordJezo
1 Replies
3. UNIX for Dummies Questions & Answers
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)
Discussion started by: zp523444
2 Replies
4. UNIX for Dummies Questions & Answers
Hi
Can anybody tell the difference between Difference between cat , cat > , cat >> and touch command in UNIX?
Thanks (6 Replies)
Discussion started by: skyineyes
6 Replies
5. Shell Programming and Scripting
Hi,
Is there a way to cat a file on Webpage? . Thanks in advance (3 Replies)
Discussion started by: rider29
3 Replies
6. Shell Programming and Scripting
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... (21 Replies)
Discussion started by: shira
21 Replies
7. Shell Programming and Scripting
Hi All
i need a little script that can open a file , read it and then spit out some information from it
from the shell i would do
cat /var/log/Xorg.0.log | grep pixel | sed 's/: 330.*//' |
how can i do this nicley in perl
thanks
Adam (3 Replies)
Discussion started by: ab52
3 Replies
8. UNIX for Advanced & Expert Users
in bash:
for i in `cat file` ; do
echo $i
done;
how will i do this in perl ? (10 Replies)
Discussion started by: linuxgeek
10 Replies
9. Shell Programming and Scripting
Hello,
I'm on a remote computer by SSH. How can I get the output of "cat file" into a file on the local computer?
I cannot use scp, because it's blocked.
something like:
ssh root@remote_maschine "cat /file" > /locale_machine/file
:rolleyes: (2 Replies)
Discussion started by: borsti007
2 Replies
CAT(1) General Commands Manual CAT(1)
NAME
cat - catenate and print
SYNOPSIS
cat [ -u ] [ -n ] [ -s ] [ -v ] file ...
DESCRIPTION
Cat reads each file in sequence and displays it on the standard output. Thus
cat file
displays the file on the standard output, and
cat file1 file2 >file3
concatenates the first two files and places the result on the third.
If no input file is given, or if the argument `-' is encountered, cat reads from the standard input file. Output is buffered in the block
size recommended by stat(2) unless the standard output is a terminal, when it is line buffered. The -u option makes the output completely
unbuffered.
The -n option displays the output lines preceded by lines numbers, numbered sequentially from 1. Specifying the -b option with the -n
option omits the line numbers from blank lines.
The -s option crushes out multiple adjacent empty lines so that the output is displayed single spaced.
The -v option displays non-printing characters so that they are visible. Control characters print like ^X for control-x; the delete char-
acter (octal 0177) prints as ^?. Non-ascii characters (with the high bit set) are printed as M- (for meta) followed by the character of
the low 7 bits. A -e option may be given with the -v option, which displays a `$' character at the end of each line. Specifying the -t
option with the -v option displays tab characters as ^I.
SEE ALSO
cp(1), ex(1), more(1), pr(1), tail(1)
BUGS
Beware of `cat a b >a' and `cat a b >b', which destroy the input files before reading them.
4th Berkeley Distribution May 5, 1986 CAT(1)