wvLatex: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/wvLatex - from package: wv

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/wvLatex - from package: wv

You may install the required package with command apt-get install {package}

Error in other languages:
wvLatex: bevel nie gevind nie
wvLatex: comandă negăsită
wvLatex: comando não encontrado
wvLatex: commande introuvable
wvLatex: command not found
wvLatex: käsku ei ole
wvLatex: không tìm thấy lệnh
wvLatex: komanda nerasta
wvLatex: Kommando nicht gefunden.
wvLatex: kommandot finns inte
wvLatex: komut yok
wvLatex: nie znaleziono polecenia
wvLatex: níor aimsíodh an t-ordú
wvLatex: no se encontró la orden
wvLatex: no s'ha trobat l'ordre
wvLatex: opdracht niet gevonden
wvLatex: parancs nem található
wvLatex: perintah tidak ditemukan
wvLatex: príkaz nenájdený
wvLatex: příkaz nenalezen
wvLatex: команда не найдена
wvLatex: командата не е открита
wvLatex: 命令找不到
wvLatex: コマンドが見つかりません