Create a bash function with parameters to use as an alias

Question

Create a bash function with parameters to use as an alias

I have realised that my folders follow a specific structure and wanted to access them with cd faster, so I tried to make this alias / function that would behave like this:

cdc glm 03

would be equivalent to

cd ~/Documents/7glm/week03

And I tried defining such function (in ./bashrc) but it does not work. Running it does not paste the parameters:

cd ~/Documents/7/week

The function:

cdc () {
    if [ $# -lt 2 "$1" ]; then
        echo  "Usage: cdc <folder_name> <folder_number>"
    else
        folder_name="$1"
        folder_number="$2"
        cd ~/Documents/7"$foldername"/week"$foldernumber"
    fi
}

What am I doing wrong (very new to bash)?

Thanks!

Asked By: Uladzimir Treihis

||

Source

Answer 1

You’ll need to take care of two issues:

The first being too many arguments inside the test brackets [ ... ] around the -lt operator … Namely 2 "$1".
The second being inconsistent parameter naming in setting and expansion … e.g. folder_name and "$foldername".

… and your function should, accordingly, be:

cdc () {
    if [ $# -lt 2 ]; then
        echo  "Usage: cdc <folder_name> <folder_number>"
    else
        folder_name="$1"
        folder_number="$2"
        cd ~/Documents/7"$folder_name"/week"$folder_number"
    fi
}

Answered By: Raffa