Tex

install texlive & tex2pdf

• install texlive sudo apt-get install texlive

• install tex2pdf https://sourceforge.net/projects/tex2pdf.berlios/

sudo mv tex2pdf /usr/bin
tex2pdf --configure
tex2pdf <filename>.tex

there may remind you that not found subfloat.sty

install subfloat.sty

• download subfloat.sty https://ctan.org/tex-archive/macros/latex/contrib/subfloat

• unzip this .zip file

cd subfloat
./install.sh

$ kpsewhich -var-value=TEXMFHOME
/home/litreily/texmf
$ sudo mkdir -p ~/texmf/subfloat
$ cp subfloat.sty ~/texmf/subfloat/
$ sudo texhash

or

sudo cp subfloat.sty /usr/share/latex/subfloat/
# or
sudo cp subfloat.sty /usr/share/texlive/texmf-dist/tex/latex/subfloat/

sudo texhash

• check subfloat.sty

$ kpsewhich subfloat.sty
/usr/share/texmf/tex/latex/subfloat/subfloat.sty