tcsh

I am running CentOS 7, and I am having problems with tcsh scripts. I have a simple script called quittest. #!/bin/tcsh echo "Simple Test" exit 0 When I run quittest from the terminal, I get "Simple Test" And it does not exit. I can Control+C to exit. I check on the status of this with: ps aux and it shows quittest with a state of S+ (foreground interruptible sleep). If I change this script to bash, or sh, it runs fine, and exits as expected. I cannot just switch to another shell, because my users have very complex scripts written with tcsh. We are replacing OpenSuSE 12.3 with CentOS 7. Tcsh

I like to have a command-line calculator handy. The requirements are: Support all the basic arithmetic operators: +, -, /, *, ^ for exponentiation, plus parentheses for grouping. Require minimal typing, I don't want to have to call a program interact with it then asking it to exit. Ideally only one character and a space in addition to the expression itself should be entered into the command line. It should know how to ignore commas and dollar (or other currency symbols) in numbers to allow me to copy/paste from the web without worrying about having to clean every number before pasting it into

I've got a tcsh shell script that I would like to stop with an error on nonzero status most of the time, but in some cases I want to ignore it. For example: #!/bin/tcsh -vxef cp file/that/might/not/exist . #Want to ignore this status cp file/that/might/not/exist . ; echo "this doesn't work" cp file/that/must/exist . #Want to stop if this status is nonzero I don't know about tcsh, but with bash, you can use set -e to do this. When the -e flag is set, bash will exit immediately if any subcommand fails (see the manual for technical details). When not set, it will continue to execute. So, you can

I'm executing a program that dumps crash report into STDERR from where I have to filter some necessary information. The problem is that I'm unable to redirect STDERR to STDOUT and PIPE it with grep command 2>&1 >/dev/null | grep "^[^-]" >& /tmp/fl Getting error: Ambiguous output redirect. Same command works under bash terminal. What should I change to make it work ? csh is significantly more limited than bash when it comes to file redirection. In csh , you can redirect stdout with the usual > operator, you can redirect both stdout and stderr with the >& operator, you can pipe stdout and stderr

Say I put an executable tcsh file in /path/to/my_script.csh and my current directory is anywhere, for example I'm in /path So I type to/my_script.csh I want to have a line in my_script.csh that will return "/path/to/my_script.csh" - like ruby's __FILE__ If you want to ensure the same result (full path and script name) try something like this: ... rootdir=`/bin/dirname $0` # may be relative path rootdir=`cd $rootdir && pwd` # ensure absolute path zero=$rootdir/`/bin/basename $0` echo $zero ... Then you can call it as foo.sh, ./foo.sh, some/lower/dir/foo.sh and still get the same result no

IF I have to check that if a variable is empty or not for that in bash shell i can check with the following script: if [ -z "$1" ] then echo "variable is empty" else echo "variable contains $1" fi But I need to convert it into tcsh shell. The standard warnings regarding use of tcsh / csh apply, but here's the translation: if ( "$1" == "" ) then # parentheses not strictly needed in this simple case echo "variable is empty" else echo "variable contains $1" endif Note, though, that if you were to use an arbitrary variable name rather than $1 in the above, the statement would break if that