pango-view: 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/pango-view - from package: pango

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

On Debian possible default full paths are:

/usr/bin/pango-view - from package: libpango1.0-dev

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

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