tcsh style filename modifiers in bash

.bashrc

# in tcsh you can do stuff like this:
# set f = /foo/bar/myfile.0076.jpg
# echo $f:r:e
# --> 0076

# echo $f:h:t
# --> bar

# In bash its a mess so I wrote some functions to make it possible.
e() # the extension
E() # everything but the extension
t() # the tail - i.e. everything after the last /
T() # everything but the tail (head)
 Put the functions (at the end of the gist) in .bashrc and you can have tcsh style filename modifiers in bash:

# Examples:
# These functions can accept the filename as an argument like so:
# 
# f=foo/bar/my_image_file.0076.jpg
# e $f
# --> jpg
# E $f
# --> foo/bar/my_image_file.0076
# 
# or accept input from a pipe, which is the feature from tcsh that I really wanted:
# 
# echo $f|E|e
# --> 0076
# 
# or of course, a combination:
# 
# T $f|t
# --> bar
# 
# and it will accept many files through the pipe:
# 
# ls foo/bar/
# --> my_image_file.0075.jpg  my_image_file.0076.jpg
# ls foo/bar/ |E|e
# --> 0075
# --> 0076



# Put these functions in .bashrc

# e: the extension
function e(){
    if [ $# -ne 0 ]; then
        echo ${1##*.}  
    else
        while read data; do
            echo  ${data##*.}   ; 
        done
    fi
}

# E: everything but the extension
function E(){
    if [ $# -ne 0 ]; then
        echo ${1%.*} 
    else
        while read data; do
            echo ${data%.*}
        done
    fi
}

# t: the tail - i.e. everything after the last /
function t(){
    if [ $# -ne 0 ]; then
        echo ${1##*/}  
    else
        while read data; do
            echo  ${data##*/}   ; 
        done
    fi
}

# T: everything but the tail (the head)
function T(){
    if [ $# -ne 0 ]; then
        echo ${1%/*} 
    else
        while read data; do
            echo ${data%/*}
        done
    fi
}