Questions tagged [csh]
The C shell (csh), once one of the two major Unix shells with the Bourne shell. Csh had more advanced interactive feature but has been surpassed by modern Bourne-style shells such as zsh and bash.
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Difference between 2>&-, 2>/dev/null, |&, &>/dev/null and >/dev/null 2>&1
Just looking for the difference between
2>&-
2>/dev/null
|&
&>/dev/null
>/dev/null 2>&1
and their portability with non-Bourne shells like tcsh, mksh, etc.
- 2,682
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votes
2
answers
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Are there problems with hyphens in functions, aliases, and executables?
In my testing (in Bash and Z Shell), I saw no problems with defining functions or aliases or executable shell scripts which have hyphens in the name, but I'm not confident that this will be okay in ...
- 9,258
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votes
2
answers
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Add an application to the command search path in csh
Recently, I have installed an application (gnuplot) under user directory (/home/usr/bin). I want to run the application whenever I type 'gnuplot' in any directory. What could I do?
I tried to set the ...
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votes
2
answers
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Is it possible to send a HEREDOC over ssh to a remote host from inside a script running locally?
I essentially want to run a script on machine A which will SSH into machine B, execute commands on B, and return the output to machine A.
So I am creating a csh script to do this, hopefully, if it's ...
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votes
4
answers
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stderr redirection not working in csh
I run the following command:
pkg_add emacs-23.4,2.tbz 2> output.log
The output still displays in the terminal. When I press ↑, I get
pkg_add emacs-23.4,2.tbz 2 > output.log
with a space ...
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4
votes
2
answers
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Event not found in sed call in csh script
I tried the code as given on delete text between curly brackets
however I am facing this different error regarding event in sed.
file contains:
This is {
{the multiline
text} file }
that wants
{ ...
- 4,990
3
votes
1
answer
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Unwanted question mark appended to directory name when using mkdir
I am unsure why when I use mkdir -p $fbase an unwanted ? is appended to the name of the directory (27obs87St01Rec1?) . I have followed similar threads and ran cat -A filename to see if there are ...
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votes
2
answers
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views
Compatibility scripting: Save $? for use later
I would like to write a small part of a script that saves the error status, executes some other code, and sets the error status to the original error status. In Bash it looks like this:
<< some ...
- 35.8k
3
votes
3
answers
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Error "syntax error near unexpected token `('?"
What's in my terminal
bash: settings64.csh: line 35: syntax error near unexpected token `('
bash: settings64.csh: line 35: `foreach i ( $xlnxInstLocList )'
Portion of the script
set xlnxInstLocList=...
- 41
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votes
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CSH - How to check if input is NOT number
Need to apply it on csh.
to check if the inputted $2 is not number nor the word "all"
if ($#argv == 2 && ($2 != all && $2 != **any number**)) then
echo "wrong parameter"
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How to determine current users who are logged in using a specific domain? | UNIX [closed]
I want to know How to determine current users who are logged in using a specific domain?
For example, here is the question. Please tell according to it using the grep command and use of wc.
Question: ...
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26
votes
3
answers
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How does a shell know home(s)?
Each shell has an environment variable $HOME set (ex: /Users/lotolo). If I'm under csh I can unsetenv HOME and still if I do cd I'll be in my home. I've tested this also on bash (unset HOME) and it'...
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'switch' based on shell
I would like to source (i.e. not call) a script from any shell (bash/csh are the primary targets, but fish, zsh, ksh, and rc would also be interesting).
I would like if the script can be a single ...
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votes
2
answers
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Show every installed command-line shell?
How to show every installed command-line shell, (i.e. bash, zsh, etc.), with no duplicates, and nothing else, (i.e. no programs that aren't shells)? This code almost works on my Lubuntu system, (...
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Which is the real PATH variable
On my office computer it seems like I've have two PATH variables.
$path : This is delimited by " " (Space)
$PATH : This is delimited by ":" (Colon)
Though when I update one, the other one ...
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