
linux - C Shell: "if: Expression Syntax" - Stack Overflow
Sep 27, 2021 · I have to write a C Shell script for work, and I have no idea why my if statement is apparently malformed. I have something like this: #!/bin/csh -f foreach line("`cat file.txt`&q...
Increment variable value by 1 (shell programming)
I can't seem to be able to increase the variable value by 1. I have looked at tutorialspoint's Unix / Linux Shell Programming tutorial but it only shows how to add together two variables. I have tr...
linux - Implementing shell in C and need help handling …
Jul 17, 2012 · I have been working on a relatively simple shell in C for a while now, but I am having trouble implementing input (<) and output (>) redirection. Help me find the issues in the following code:
How to pass command line arguments to a shell alias?
The C shell has a mechanism for doing arguments to aliases, but bash and the Korn shell don't, because the function mechanism is more flexible and offers the same capability.
What is the $? (dollar question mark) variable in shell scripting?
I'm trying to learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters.
linux - foreach syntax in csh - Stack Overflow
Oct 26, 2012 · For this csh script #!/bin/csh foreach file in (.) echo "$file" end I get this error foreach: Words not parenthesized. How can I fix that?
shell - Multiple wordlists in csh script foreach loop - Stack Overflow
Sep 15, 2010 · The c tag is for C programming language related questions. csh while named the "C Shell" has nothing to do with the C programming language. I removed that tag for you.
How can I read one line at a time with C shell in unix
Oct 25, 2010 · I try to make a small script, using c shell, that will take a file made of several lines, each containing a name and a number and sum all numbers that a have certain name. How can I put into a vari...
How to use for loops in command prompt in csh shell -- looking …
Oct 9, 2009 · The csh man page states: The foreach, switch, and while statements, as well as the if-then-else form of the if statement require that the major keywords appear in a single simple command on an input line as shown below. and Both foreach and end must appear alone on separate lines. and The words else and endif must appear at the beginning of input lines; the if must appear alone on its input ...
c - Connecting n commands with pipes in a shell? - Stack Overflow
I am trying to implement a shell in C. I can execute simple commands just fine with a simple execvp() but one of the requirements is to manage commands like this: "ls -l | head | tail -4" with a 'f...