tcsh is a Unix command shell based on the C shell (csh)

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How to list available executables in tcsh?

I want to be able to list all executables starting with "prefix" available in path (whether they are scripts, shell functions or aliases), and store the list in a variable. In bash, I would be able to ...
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How to make an interactive subshell in tcsh?

How can I make an interactive subshell in tcsh? E.g.: % alias pathfrom 'cd `pathto -f`' ... where "pathto" is a script that asks the user (via STDOUT) for input (via STDIN) and prints a string in ...
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tcsh: how can we display the body of a foreach loop in history

I see that history doesn't display the body of loops. Is there a way to show them? san: cd /tmp/test san: touch abc san: touch def san: ls abc def san: foreach file ( `ls` ) foreach? echo "File is ...
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61 views

bash like --init-file in the tcsh

The bash/screen scenario: screen -dmS sessionname -c /path/to/screenrc the /path/to/screenrc contains for example screen -t windowtitle1 bash --init-file /path/to/window1.bashinit screen -t ...
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24 views

Red Hat 7 terminal does not open in cwd

I just got upgraded to Red Hat 7 and am getting used to the changes. One thing I immediately noticed was that when I press Ctrl-Shift-T to open a new terminal tab, it defaults to / rather than the ...
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190 views

256color terminal flickering in Konsole

I'm trying to setup 256 color mode at work for my Vim setup and it just refuses to work correctly. I'm using Konsole as my terminal emulator and my shell type is tcsh. I found a perl script named ...
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93 views

Run tcsh with arbitrary startup script

I want to create a new instance of tcsh and source an arbitrary script, all in one step. The problem is that when I use the -c option, the shell instance closes as soon as the script is complete. ...
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75 views

How to set a time length of ssh and redirect the error message

I have a hostlist and there are several hosts. I want to use ssh to connect to them. I want to see whether the host is available or not by the time length of ssh takes. If it take long than 5s (which ...
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13 views

tsch: tab-complete filename after --flag=

One the small annoyances I have in my daily use of tcsh is when I start writing a command like this: # do_stuff --input=/path/to/some I wish to use tab-completion to finish writing ...
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178 views

How can we configure paths for .cshrc

Within a shell script, i am trying to open a new tcsh shell and load some set of pre defined aliases and env variables which i do not want to have in default cshrc. I cannot have it in my home dir ...
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165 views

Run script on SSH login to server

I'm trying to work out how to get SSH to run a script before passing a shell to me. The reason for this is that I will be logging into shared users on many boxes and I want my own configuration when I ...
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147 views

I have a ~/.cshrc file that is sourcing another file, which should source an additional file but is not

I recently inherited an administration role for my lab and I'm still fairly new to this... so hopefully this question makes sense. Our system is set up so that one server hosts the data/user ...
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58 views

Copying multiple files on linux

I have a linux machine with folders named numerically. How can I securely copy ranges of these folders to another server? The source machine runs tcsh, the target bash. At the moment, from the ...
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1answer
68 views

How can I make printf print unicode characters saved in a variable?

I have this code to print a horizontal line using unicode character \u2501: #!/bin/tcsh set horz_line = "'" foreach x (`seq 1 1 80`) set horz_line = "${horz_line}\\u2501" end set horz_line = ...
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486 views

grep: Invalid back reference for date expression in tcsh

I googled for the following error, and didn't get any great explanations as to what was going on with grep under tcsh. (Yes, that date expression exists in the log files). $ grep '2014-07-21' *.log ...
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1k views

Use “>>” Redirection Operator for Non-Existent File In tcsh/csh

I'm writing tcsh scripts and I would like to append to a log file, but if the log file doesn't exist before appending to it, I get an error (reproduced below). In bash the file gets created if it ...
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289 views

rm matching file names by pattern

I have 42000+ Project Gutenberg epubs. Often a release has both an images version and a no-images version. I want to remove the no-image copies if there is an image copy. ... pg16045-images.epub ...
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579 views

How to make auto complete available for directories in cdpath for tcsh?

I just learned the trick for setting up cdpath in tcsh and it looks pretty useful. However, it seems that auto-complete of sub-folder names doesn't come with it. Is there any trick available on that? ...
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5k views

Running commands as another user on their machine via ssh?

As part of my normal workflow I ssh into another user's machine, switch user to them, run a command, then exit out to my own machine again: ssh hostname sudo su user runcommand exit exit Is there a ...
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1k views

Suppress 'Warning: no access to tty' in ssh

I have a short simple script, that compiles a .c file and runs it on a remote server running tcsh and then just gives back control to my machine (this is for school, I need my programs to work ...
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83 views

How do I execute savehist for tcsh history if my machine froze?

My MacBook Air froze all of a sudden: the keyboard, trackpad and display are all unresponsive. However, ssh works. I have one tcsh session active. Which signal do I send to tcsh for it to ...
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875 views

No entry for terminal type "xterm-256color-256color

I recently added the following (below) to .mycshrc to allow 256 color xterm and allow command line vim to operate in 256 colors, however certain command line tools like less have thrown errors ...
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596 views

Copying a template header to multiple existing files

I have a bunch of *.csv files that use headers. Right now the files have headers and the same number of lines of data. I need to erase the data in these files, so I figured I could just overwrite the ...
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201 views

How do I make an alias work when I need to invoke more than one binary in the same command?

Say I have two binary files: binary1 and binary2. Each of them has its own option set: options1 and options2. Users need to invoke a command that follows this structure: binary1 options1 binary2 ...
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402 views

Tcsh command history

I use tcsh and have the following in my .cshrc file. But the .history file is not updated as and when I execute a command. Is there anyway so that .history file is updated every time I execute a ...
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739 views

Writing a tcsh script to copy files specified in first argument to a specific directory

I'm trying to write a script in tcsh that will copy select files that I specify at the command line from one directory to another without having to write out the entire path of each file. Also, to ...
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1k views

Linux: How to eval the contents of STDOUT?

Consider you have a file with some sort of terminal command. How might each line be executed? Can you pipe the output of more into an eval? %> more ./foo.txt Edit: After some help/guidance ...
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45 views

Use two different completions in tcsh

I want to make a tcsh completion that completes with both a relative directory (ie p/*/d/), or the output of a command (ie p/*/'completionterms'/). Is this possible? Looking at the tcsh man page it's ...
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1answer
39 views

List directories without erroring if none exist

I have a rather strict set of specs for a directory listing that I need: It must list the directories in the current directory It must list purely the basename (no "./", no trailing slash) It ...
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1answer
567 views

Echo string in tcsh with special characters escaped

Is it possible to echo out a string in tcsh such that it is fully escaped, as tcsh would understand? In the same way as printf %q works in bash: % # Create a variable containing a tab character % ...
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2k views

How to get rid of errors when running find command in Linux?

I am using following command to list out 20 large files in a directory. But along with the file listing, it also shows error messages, such as permission denied. I tried adding 2> /dev/null but it ...
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149 views

Arbitrary code execution in tcsh prompt?

I'd like to customize my prompt to include the output of an arbitrary command, like you can do in bash (e.g., I'd like to cat a file and have its (one-word) contents appear in the prompt, or show the ...
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531 views

csh: Every command returns “no match”

I'm on mac OSX mountain lion working with csh. I'm not quite sure what I did, but suddenly every standard unix command I run returns a "no match". Example: $ echo "Hello" echo: no match $ rm a.txt ...
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392 views

vim can not execute unix command with :! due to shell changing

Our company uses red hat linux system and allocate everyone an account in /home. Unfortunately, our system is using tsch, which is not favorable for me. Moreover, as I do not have the super user ...
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188 views

How can I have the return string of a program appear in my tcsh prompt?

I am using vcprompt to provide me with the git branch and dirtiness status. It returns it as a string. How can I catch this string in my tcsh prompt setting? I guess I need to put the call to ...
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2k views

Transferring environment variable through SSH / quoting in bash/sh/csh/tcsh

I want to transfer an environment variable over SSH. The "correct" way is using SendEnv/~/.ssh/environment, but that requires the server to support AcceptEnv or PermitUserEnvironment, which it does ...
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48 views

tcsh: how to enter a subdirectory that's most recently modified?

I found it for bash, but how would I do it for tcsh? I want to chain it with a cd command.
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241 views

Ignore variables from another shell

I am on a linux workstation in a network, with an "old" distrib. Furthermore, login shell is enforced to CSH. I already asked to Admins if it would be possible to switch to another one (I would like ...
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601 views

What's DING!? Shell prompt with time in it

I am using tcsh shell. I put time in my shell prompt. It shows me DING! sometimes, what's up with that? /home/snihalani on master at 2:55pm => /home/snihalani on master at DING! => ...
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4k views

Can I “export” an alias to the SHELL that invoked a script?

I'm trying to write a utility script that defines certain aliases. My SHELL is tcsh (can't change that). I tried the following #!/bin/tcsh alias log 'less ~/logs/log.date '+%Y%m%d''' Then I run ...
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891 views

Opening new terminal window does not pick up .cshrc

I am using KDE and Konsole. When I open a new tab, it does not pick up my .cshrc in my home directory. I am using tcsh. How I do I force re-loading of the .cshrc in my home directory without having to ...
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8k views

Redirect stdout to stderr in tcsh

From my understanding, the following should send 'test' on standard error in tcsh: echo test >&2 However, it instead writes 'test' to a file named 2, and when I look through my history, I ...
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1answer
454 views

bash 4.2 autocd command default over directory

Just switched from tcsh to bash 4.2 on OSX, and autocd was what allowed me to do it. But it seems that by default if you type the name of a directory that also happens to be the name of an executable ...
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1answer
422 views

How to save shell history more conveniently in tcsh?

I'm using tcsh quite extensively and have several questions about it's history: Is there a way to save commands for different shell tabs separately? Is there a way to save commands by session (for ...
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797 views

In csh/tcsh, how can I incorporate literal curly braces into a command that's processed with eval?

To give more details, the situation is this. I'm trying to prepare modulefiles (i.e., of the type used by the environment-modules package) to set up environment and aliases for third-party software. ...
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673 views

cd Command Linux and Mystery Flags

Platform: CentOS 6.2 Shell:tcsh I'm playing around with cd for a BASH script, and noticed the wondrous cd - option, but was left with many questions... Why the cd -? Isn't this redundant with cd ...
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640 views

“which” Program Requires Shell Refresh to See Newly Installed Programs?

Why does the Linux program which require you to refresh the shell (e.g. type tcsh in the terminal) to see new programs installed in your path?? I was baffled why I couldn't access a program, which ...
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732 views

sudo in CentOS 6.1 does not preserve command aliases as sudo elsewhere does?

On a stock CentOS 6.1 installation, if I start in my user shell (tcsh) with all my usual command aliases and do what I normally do (in other versions of Linux, and Mac OS X) to get a root shell, ...
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86 views

Running the output of script, and checking for consistency

Given a file that was output by script, is there a way to run all of those commands in order, and then check to see if the output matches what was in the script file? I assume that diff can be used ...
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2answers
1k views

get value of an alias in bash

I recently switched from tcsh to bash, and I'm used to being able to do things like sudo `alias netstat` but since alias gives name=value in bash, I can't do this anymore. Is there an equivalent in ...