Hi all
How can I setup my shell so that I run a set of commmands or a script every time I login. I am using kshell. I tried putting a line in ./.bash_profile (does not work)
Ex.: I want to use vi as the commandline editor so, I want to run the command: set -o vi (3 Replies)
I'm new to unix and I have a fairly simple problem:
Lets say I am in a specific directory and I run the command: "dirs" ,
I get an output of all the folders that i pushed into the stack (as expected),
buut,
when when I create a script (called test):
#! /bin/csh
dirs
and then i run:... (2 Replies)
Hello,
We have a requirement to disable running shell commands via vi using "!".
Can anybody please suggest how to disable this option.
The requirement arises because we open up a xterm window with a config file in vi mode for the customer to edit. After the customer edits the config... (1 Reply)
Hello all!
I have two consoles.I know the PID of these two.Now I want to execute a command in console#1 but from console#2. How can I achieve this?
Anyone can do something for my query?
Click here if you can't understand my query or to know the need for this query. (3 Replies)
Hi,
-How can I get number of files, cpu usage (percentage), memory usage, disk usage, ...etc, using C program ... I can use unix command ( system(command) )but I want the value to be returned back to my C program to use it in my code? How can I do that?
Thanks in advance ... (2 Replies)
HI.
I am trying to run 2 commands, using the "for x in a b c d" loop but i am having a hard time coding it...
Here is what i have so far:
for SERVER in SERVERA SERVERB SERVERC SERVERD SERVERE
do
###############################################################################
#... (5 Replies)
I need an if code in shell script where it should continue to further commands after succesfully installing the executable file.
i.e. /run installer is continuing but in the middle it executes further commands like "cp /root/user which were given after /run installer.
I want /runinstaller... (16 Replies)
Is there any way in a script to print out the commands being ran? In DOS script, there is the "@echo on" and "@echo off".
so I have a script like this:
#!/bin/ksh
echo "hello there. moving files."
<turn on echoing here>
cp thisfile.txt thatfile.txt
cp whatfile.prop whyfile.prop
<turn... (2 Replies)
I have a small question may be this will be discussed before
I have two files file1 and file2 with huge data and I am running the commands as
cat file1 |sort &
cat file2 |sort &
If the session is got disconnected or logout will this command run in background,
or shall we use nohup (3 Replies)
Discussion started by: morbid_angel
3 Replies
LEARN ABOUT OPENDARWIN
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u The -u option guarantees that the output is unbuffered.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
DIAGNOSTICS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-benstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
BSD September 15, 2001 BSD