pagesjaunes: 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:

/usr/bin/pagesjaunes - from package: libwww-search-perl

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

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