Category Archives: Uncategorized
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
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Tagged format, seq
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
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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.
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Tagged sed
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.
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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
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How to write output values to the standard output without carriage return in FORTRAN
How to write output values to the standard output without carriage return: program tstNoadv integer :: i do i = 1, 10 write(*,”(A1,I6.4,$)”) char(13), i call system(“sleep 1”) end do write(*,*) “Done” stop end program
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Tagged FORTRAn
