Pygmentize Styles

2020-07-26 1 min read Learning

I have recently started using pygmentize for looking at my code in terminal. A very good and native way to do this is to use pygmentize. If you do not know about pygmentize then

Highlight the input file and write the result to . If no input file is given, use stdin, if -o is not given, use stdout.

So, you can simply pass the script or source code through pygmentize and get a lovely color output with code highlighting in the terminal and this can be very useful.

Get to your ebooks quickly

2018-11-12 2 min read Linux Uncategorized

So this is going to be a little longer post than usual.

To begin with, here is screenshot of how it would look like finally:

change the output format for time command

2016-08-16 1 min read Bash

If you are doing some scripting and using ‘time’ command, then you know sometimes it becomes difficult to capture the output as the output would be something like this:

: amit ; time ls

real    0m0.002s
user    0m0.000s
sys 0m0.001s

So, it is better to change that format. Here is simple example:

  <td>
    <div class="text codecolorer">
      &nbsp;
    </div>
  </td>
</tr>

TIMEFORMAT=’real %3R user %3U sys %3S pcpu %P’ time ls: amit ; TIMEFORMAT=’real %3R user %3U sys %3S pcpu %P’ time ls
0.00user 0.00system 0:00.00elapsed 0%CPU (0text+0data 2432max)
0inputs+0outputs (0major+109minor)pagefaults 0swaps: amit ; TIMEFORMAT=’real %3R user %3U sys %3S’; amit ; time ls
real 0.001 user 0.001 sys 0.000; amit ;; amit ; TIMEFORMAT=’TIMEOUTPUT = real %3R user %3U sys %3S’; amit ; time ls
TIMEOUTPUT = real 0.001 user 0.001 sys 0.000; amit ;

image ordering by Original Date Time using bash script

2016-01-05 1 min read Bash

Here is the script:

#!/bin/bash -
#===============================================================================
#
#          FILE: imgOrg.sh
#
#         USAGE: ./imgOrg.sh
#
#   DESCRIPTION:
#
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: Amit Agarwal (aka)
#      REVISION:  ---
#===============================================================================

for i in *
do
    if [[ $(file $i) == *image* ]] 
    then
        echo "Image file is :: $i"
        dir=$( exiftool -s -DateTimeOriginal $i | awk -F':' '{print $2"/"$3}')
        mkdir -p $dir
        cp $i $dir/
    else
        echo "Excluding $i"
    fi
done

How to verify sha256sum for multiple file or one file.

2015-10-30 1 min read Bash Linux

So, lets say you have downloaded the SHA256SUMS files. This file contains the sha256sum for multiple files and you want to compare the values for only one or some of them, then the simplest thing you can do is:

sha256sum -c SHA256SUMS

Now, with this if you do not have some files present then you might get some errors and if you do not want that, then you can try this:

Get count of lines in scripts (shell)

2015-10-15 1 min read Bash

If you have tried to get the count of lines in file, the you would know about “nl” or “wc -l”. But as you are aware these give you number of lines with other details as well and you need to post process the number to make sure that you have only number and nothing else. In such cases, it is useful to use the count feature of grep and here is a shorthand to get the count of lines in any shell script:

shell script for some quick tests on Linux

2015-01-22 1 min read Fedora

Head over to the link and grab the script. Just run it and make yourself a little bit more safe 🙂

https://github.com/rebootuser/LinEnum

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