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how to install wordpress and mysql
Sat Nov 23 13:52:24 HST 2019
Alternative to ESC in vim editor
If you have an American English keyboard, pressing Ctrl-[ (control plus left square bracket) is equivalent to pressing Esc. This provides an easy way to exit from insert mode. https://vim.fandom.com/wiki/Avoid_the_escape_key
How to avoid warning messages from hyperref package in LaTex
\usepackage[unicode=true,pdfusetitle, bookmarks=true, bookmarksnumbered=false, bookmarksopen=false, breaklinks=false, pdfborder={0 0 1}, backref=false, colorlinks=false]{hyperref} \hypersetup{pdfauthor={Name}} Use of hyperref package in a LaTex script makes the manuscript more visually understandable, but it often gives warning message like Package hyperref Warning: Token not allowed in a … Continue reading
command line dictionary and thesaurus
To use command line dictionary and thesaurus, execute the following command: sudo apt-get install dict dictd dict-gcide dict-moby-thesaurus And, try dict fundamental which will show the definitions and synonyms of “fundamental” on the terminal screen.
How to generate a fixed format, sequential integers
The following bash script is to generate integers from 1 to 11, having 3-digit format. #!/bin/bash for i in `seq -f “%03g” 1 11` do echo $i done exit 0 The result is as follows. 001 002 003 004 005 … Continue reading
Learn The Entire Python Language In A Single Image (link)
An interesting page that contains a single image for python language. Here. Image link: Here
How to replace the 4th occurrence of a character in a file using sed
sed -i “s/\”/ \”/4″ myFile.txt The above command will replace the 4th occurrence of “ by “ in file “myFile.txt”, which is equivalent to putting a space in front of the 4th double quote.
How to change an extension of many files
In a Linux terminal: $ for f in *.txt; do mv — “$f” “${f%.txt}.text”; done will rename all *.txt to *.text files.
How to compile .tex file without stopping
Method 1: using pdflatex to generate a pdf file $ pdflatex -interaction nonstopmode myTexFile.tex Method 2: using latexmk to generate a dvi file. $ latexmk myTexFile.tex
Computational Environmental Physics Lab (CEPL) 