oam/knowledge base/get the current shell.md

Get the current shell

1. TL;DR
2. Further readings
   1. Sources

TL;DR

# Full path of the current shell's executable with arguments.
ps -o 'command='

# Full path of the current shell's executable only.
ps -o 'comm='

# Only the executable name.
ps -co 'comm='

# Unreliable: if the SHELL variable is set by a previous shell, that one is the
# value that will be shown.
echo "$SHELL"
echo "$0"

Further readings

Sources

• Remove the first line of a text file in Linux