Useful sed commands

sed_commands.sh

#!/bin/sh 

# Where I am storing useful sed commands for later use. 

# Removing characters from a csv or text file. This removes a double-quote.
sed 's/"//g' filename.csv 
sed 's/"//g' filename.csv > filename_new.csv

# Not sed, but using cut to remove columns of a csv file.
# This takes a pipe-delimited file and removes columns 2, 3, and 4.
cut -d '|' -f2-4 filename.csv