tex..gif: 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 Debian possible default full paths are:

/var/lib/wims/public_html/bin/tex..gif - from package: wims

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

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