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Questions tagged [csh]

csh, or the C shell, is a command interpreter with a syntax reminiscent of the C programming language.

Quoted from the Solaris csh man page:

csh, the C shell, is a command interpreter with a syntax reminiscent of the C language. It provides a number of convenient features for interactive use that are not available with the Bourne shell, including filename completion, command aliasing, history substitution, job control, and a number of built-in commands. As with the Bourne shell, the C shell provides variable, command and filename substitution.

csh first appeared in 2BSD, and was originally created by Bill Joy. While Bourne shells are more popular, csh-style shells are still fairly popular especially in the BSD community & academia.

is an an enhanced version of csh, almost all versions of csh encountered nowadays are actually tcsh.

Programming in csh is a controversial topic. For one viewpoint, see this article.

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extract substring using cshell

I need little help on extracting string using csh. I have a variable containing a long string ending with _abc. I need to extract the whole string except _abc using csh. please help
XYZ_Linux
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Read user input in both bash and csh

I'm trying to create a script to to do simple things. I need to prompt the user to reply to a question, typing yes or no. The script is written for csh, but does not work when default user shell is bash. My environment is Red Hat Enterprise Linux…
user1657743
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set var in Csh script

I'm creating a script like this #!/bin/csh set h=1; while [h=1] do echo "hi"; h=2; done; but when I execute it a get this: ===> message after : csh test.sh [h=1]: No match.
Os M Torvalds
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what are good resources to get the most out of csh or tsch?

I would like to get the most out of working in cch or tcsh shell. I am looking for general tips (post them away), online tips, or book. Thanks
vehomzzz
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Passing Arguments from wrapper script to the binary being called in cshell

I have a wrapper run script lets call it wrap_app.sh All it does is call some binary ./mybinary --run-test --run-allnew "$@" Now when I invoke it I can provide it additional arguments in bash ./wrap_app.sh --run-new-arg and these arguments will…
anijhaw
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Does double quote makes any difference in setenv command in Linux csh?

I am setting an environment variable - say ABC - in C shell in SuSe Linux. My question, are there any difference in following 2 commands? $setenv ABC "1" $setenv ABC 1 In both the cases echo gave me the same result. i.e $echo $ABC 1 For me, it…
SS Hegde
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Linux tr command

I'm relatively new to programming in c-shell and I'm having a problem with the tr command. When I execute the script, the error message I receive is "tr command not found". I'm also trying to display the contents of a file in foreach loop that I've…
demet8
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Listing shell variables with specific characters

I have in c-shell some variables referring to file names. Those variables are named like: $T01aa2 $T12aa2 $T45aa2 etc. They have in common the "T" and the "aa2". How can I list these variables in a loop for instance as I would do if they were…
user1819779
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Missing .cshrc file

I've installed cshell on Ubuntu 12.04, but there's no .cshrc file (either in ~ or /etc) - is it safe to create 1 to put a source to a script file, and if so, where's the best place to put it?
ChrisW
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What is the correct syntax for !:1- in csh

Im creating an alias like this in my cshrc file but I can't get it to work properly alias fxg "find . -type f -name \!:1'*' | xargs grep \!:2-" From what I understand!:2- should give me the arguments from the second to the last. alias fxg "find .…
Pablo Jomer
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Perl script redirect stderr and stdout to a file

I'm having trouble doing this. My script prints messages to stout and stderr, and I want them all to be directed to a file that I can view at my leisure later. Here is what I tried: $location/myscript.pl -arg1 $var1 -arg2 $var2 -verbose 1…
JDS
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How does "watch" work on concatenated commands?

Something has been bugging me a while now: watch cat file works fine and reports output in the file every 2 secs. watch cat file | grep "text" does work, but its all weird in only one row. What is the correct syntax for coupled commmands over…
tarrasch
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Why commands in .bashrc are not executed?

I have the following lines in my .bashrc which I would like to get executed upon logging in through ssh. csh source /x/y/.cshrc source /x/y/z/sourceme But the problem is that only the first command is being executed correctly. (csh prompt is coming…
gkns
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Cannot source script in .cshrc

A library I'm using has a script to set the appropriate environment variables: # Source this script to set up the ROOT build that this script is part of. # # Conveniently an alias like this can be defined in ~/.cshrc: # alias thisroot "source…
smead
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csh script run from Java GUI crashes and freezes terminal

I have a script that I run from a Java GUI. It executes a SQL script and writes the results to a log file in the tmp directory. The rest of the script should open up an xterm and display the results of the output file to the screen. It creates the…
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