Posts categorized in ‘tcsh’

I was working on a tcsh script that did some cool stuff. But if a user ran that script not knowing the true impact of the script, it could make some bad irreversible changes.

While I could simply echo a warning statement and put a sleep 10, I wanted the wait time to be shown live.

I’ll step through how to set custom fonts for xterm terminal. My default shell is tcsh.

If you type echo "Hi\nHow\nHi\nAre\nHi\nYou?\nAre", you will get this in your terminal:

Hi
How
Hi
Are
Hi
You?
Are

Here’s how we can remove the duplicate lines using awk ..

sed stands for stream editor.

This is the most common way of my sed usage:

echo [SOMETHING] | sed 's/old/NEW/g'

Some times I would need to define an alias in tcsh which can have optional arguments. tcsh doesn’t seem to support that directly.

Here’s how I solve that problem.

I found how to escape a $ sign in a regex expression in a tcsh alias. BUT it is UGLY!