Some good find alias.

Here are some interesting alias’s that you may want to add to your bashrc file or where-ever else you add your aliase’s. Very useful if you use find commonly.

There are four aliases defined here and have a comment explaining what it does. but these are so simple and useful that you probably dont even need the comments.

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# ff:  to find a file under the current directory
ff () { find . -name "$@" ; }
# ffs: to find a file whose name starts with a given string
ffs () { find . -name "$@"'*' ; }
# ffe: to find a file whose name ends with a given string
ffe () { find . -name '*'"$@" ; }
# very very useful function: for finding files with ignore case, just type "f <part of filename>"
# This in combination with alias for 'g' is deadly.
#
f () { find . -iname '*'"$@"'*' ; }

Hope this is useful for you.

Books menu with bash

If you have a folder full of ebooks in various formats and not necessarily one sigle format and you want to have a quick menu to browse though your collection without requiring to open a File Manager then you are going to love this script.

The scripts works by allowing you to browse to the requied folder of your choice and once you select the file, then using xdg-open to open the file with your default viewer.

scripting – performance improvement with file open

Sometimes just one line of code can make all the difference. I will show you with example.

Here is script with 2 functions. Both are writing some lines of text to a file. First function, “a” I have used the redirection to write to file. Function “b”, I have opened a file descriptor with “>” before going into the loop and use that reference for writing to the file. (This concept remains same for any scripting or programming language).

using cat with grep – why?

Get the git url of current repo in clipboard

Lot of times, I just want to copy the git url to clipboard. This is so common in my flow of work that I created an alias for it. Here it is:

alias git-url="cat .git/config|awk '/url/ {print $3}'|xclip -i -selection clipboard"

Script to try various themes from kitty terminal

Here is the script. Very simple yet very useful script.

#!/bin/bash - 
#===============================================================================
#
#          FILE: kitty-theme.sh
# 
#         USAGE: ./kitty-theme.sh 
# 
#   DESCRIPTION: 
# 
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: Amit Agarwal (aka),
#  ORGANIZATION: Individual
#       CREATED: 12/06/2019 10:15
# Last modified: Fri Dec 06, 2019  10:41AM
#      REVISION:  ---
#===============================================================================

set -o nounset                              # Treat unset variables as an error

FOLDER="/git/terminal.sexy/dist/schemes"  ### This is git folder where you have terminal.sexy cloned

if [[ ! -d $FOLDER ]]
then
    cd $FOLDER/../../../
    git clone https://github.com/stayradiated/terminal.sexy

fi

cd $FOLDER
tmp=$(mktemp /tmp/color-XXXXXXXX)
echo $tmp
files=$(find . -type f -name \*json)
for line in $(echo ${files[*]})
do
    echo "Processing $line"
    >$tmp
    echo "# From $line.. processed by Amit Agarwal script" >> $tmp
    sed -n -e '/color/,/\],/ p' $line | sed -e 1d -e '$d'| \
        sed 's/[",]//g'|awk '{count++; print "color"count"\t "$1}' >> $tmp
    grep ground $line |sed 's/^ *//' |sed 's/[":,]//g' >> $tmp

    kitty @ set-colors -a $tmp

    ls --color=auto ~
    read -p "If you like the theme, just press l ::" test
    if [[ $test == "l" ]]
    then
        rm -f ~/.config/kitty/theme.conf
        cp $tmp ~/.config/kitty/theme.conf
    fi
done
rm -f $tmp

scan your network with bash IP scan script

Here is the youtbe video that will walk you through bash script.