I am having the worst time trying to figure out this simple little script and I'm about to go nuts.
I have to use csh to create this script for a class and the problem I run into is checking my number range, just validating that the number is between 1 and 9 inclusive. I tried:
But it gives me a file redirection error message and I understand why, my brain is just quitting on me in trying to figure out how to fix it. Any help would be greatly appreciated!
Hi
I have always used ksh in the past, but now am using csh. To zero a file using ksh, you simply > filename. What is the command to do the same using csh?
Thanks in advance. (3 Replies)
I created a simple script and attempted to run it. All that the scrip contained was "ls -l".
At first I received the message "ksh: run_dir: not found"
I then tried typing "csh run_dir" This time the script worked.
typing echo $SHELL produced /bin/ksh
I would like to understand why this... (4 Replies)
I have an extraordinary problem with a csh script.....(feel free to berate the use of this but I'm modifying an existing bunch of them)
Anyway, I have a master csh script which in turn calls a second csh script. This second csh script is below. Within this second script are two compiled C++... (1 Reply)
how can i pre-set then PATH so that i no need setenv everytime i login.
i know it can be done with edit .login on normal user
but how about root? (1 Reply)
I am using this code
echo "opt_tpath = $opt_tpath"
if ($opt_tpath == 1) echo " -tpath = $Atpath\n"
and is giving
opt_tpath = 0
Atpath: Undefined variable.
Atpath should only be printed in opt_tpath == 1 but it still tries to print.
---------- Post updated at 10:05 AM ----------... (1 Reply)
I am trying to use \n for a new line in csh like this
echo "some text\n"
echo "some more text\n"
but am getting
some text\n
some more text\n (10 Replies)
Hi All,
Could any one of you give me a hand to convert the following line of codes from .sh to .csh please ?
proc_id=`fuser /tmp/test`
if
then
echo "File is not being used by any thing"
fi
if
then
echo "File is being used... please wait"
sleep 1
fi
Regards. (1 Reply)
CSH experts
What does the following do in CSH?
:(){:|:&};:
I was asked the question, but I don't know. I'm not aware of the context.
Any ideas?
Thanks! (1 Reply)
1. The problem statement, all variables and given/known data:
create a shell script, chExt.sh that takes one or more parameters, where the first is a desired extension and the remainder are names of files to be renamed. For each file in the command line, this script should rename the file, as... (6 Replies)
Discussion started by: kcoll025
6 Replies
LEARN ABOUT MOJAVE
script
SCRIPT(1) BSD General Commands Manual SCRIPT(1)NAME
script -- make typescript of terminal session
SYNOPSIS
script [-adkpqr] [-F pipe] [-t time] [file [command ...]]
DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an
interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript.
If the argument command is given, script will run the specified command with an optional argument vector instead of an interactive shell.
The following options are available:
-a Append the output to file or typescript, retaining the prior contents.
-d When playing back a session with the -p flag, do not sleep between records when playing back a timestamped session.
-F pipe
Immediately flush output after each write. This will allow a user to create a named pipe using mkfifo(1) and another user may watch
the live session using a utility like cat(1).
-k Log keys sent to the program as well as output.
-p Play back a session recorded with the -r flag in real time.
-q Run in quiet mode, omit the start, stop and command status messages.
-r Record a session with input, output, and timestamping.
-t time
Specify the interval at which the script output file will be flushed to disk, in seconds. A value of 0 causes script to flush after
every character I/O event. The default interval is 30 seconds.
The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-D (if
ignoreeof is not set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not
manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one.
ENVIRONMENT
The following environment variables are utilized by script:
SCRIPT
The SCRIPT environment variable is added to the sub-shell. If SCRIPT already existed in the users environment, its value is overwrit-
ten within the sub-shell. The value of SCRIPT is the name of the typescript file.
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most
shells set this variable automatically).
SEE ALSO csh(1)HISTORY
The script command appeared in 3.0BSD.
The -d, -p and -r options first appeared in NetBSD 2.0 and were ported to FreeBSD 9.2.
BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues.
When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual
echo logging. This does not work when the terminal is in a raw mode where the program being run is doing manual echo.
If script reads zero bytes from the terminal, it switches to a mode when it only attempts to read once a second until there is data to read.
This prevents script from spinning on zero-byte reads, but might cause a 1-second delay in processing of user input.
BSD December 4, 2013 BSD