5 available pane layouts when using tmuxp

tmuxp pane layout options:  

1. even-horizontal

2. even-vertical 

3. main-horizontal 

4. main-vertical

5. tiled

Add multiple columns to Pandas dataframe by applying a function that returns multiple values

df[['sum', 'difference']] = df.apply(
    lambda row: pd.Series(myfunc(row['a'], row['b'])), axis=1)

# The pd.Series is the key!

Bash | Print confirmation before exit

command 1
command 2
.
.
.

[ $? -eq '0' ] && echo "Job done!"
exit $?

Bash | remove a file is already exists

[ -e file ] && rm file

AWK function to add a double quote to beginning of a line

function addQuote(input) {
 return ("\"" input)
}

Pandas to_csv float_format

float_format= "%.0f"

Python read files line by line

fo = open('inputFileName', 'r')
lines = fo.readlines()
for ln in lines:
    print(ln)