localhost libav_master # /bin/ls /usr/bin /bin
/bin:
arping	  busybox  chown   dir		  egrep    getfacl   hostname  ls      modinfo	   nisdomainname  rbash      run-parts	sort	  touch    uncompress
attr	  bzcat    chroot  dirname	  env	   getfattr  ifconfig  lsblk   more	   passwd	  rc-status  sed	stty	  tr	   vdir
awk	  bzip2    cp	   dmesg	  expr	   grep      ip        lsmod   mount	   pidof	  readlink   seq	su	  true	   wc
basename  cat	   cut	   dnsdomainname  false    groups    kill      mkdir   mountpoint  ping		  rm	     setfacl	sync	  tty	   wdctl
bash	  chacl    date    domainname	  fgrep    gunzip    kmod      mkfifo  mv	   ping6	  rmdir      setfattr	tail	  udevadm  yes
bb	  chgrp    dd	   du		  findmnt  gzip      ln        mknod   nano	   ps		  rnano      sh		tar	  umount   ypdomainname
bunzip2   chmod    df	   echo		  fuser    head      login     mktemp  netstat	   pwd		  route      sleep	tempfile  uname    zcat

/usr/bin:
2to3				    eu-strings			   libnetcfg			  podchecker			  stdbuf
2to3-2.7			    eu-strip			   libtool			  podchecker-1.620.0-perl-5.20.2  strings
2to3-3.4			    eu-unstrip			   libtoolize			  podselect			  strip
[				    expand			   link				  podselect-1.620.0-perl-5.20.2   sum
a2p				    expiry			   linux32			  portageq			  symtree
aclocal				    expr			   linux64			  post-grohtml			  tabs
aclocal-1.14			    factor			   lkbib			  pr				  tac
aclocal-1.15			    faillog			   loadkeys			  pre-grohtml			  tail
addftinfo			    fallocate			   loadunimap			  preconv			  tailf
addr2line			    fgconsole			   locale			  printenv			  taskset
afmtodit			    file			   localedef			  printf			  tbl
apropos				    find			   logger			  prlimit			  tee
ar				    find2perl			   logname			  profile-config		  test
arch				    flex			   look				  prove				  texi2any
arpd				    flex++			   lookbib			  prove-3.330.0-perl-5.20.2	  texi2dvi
as				    flock			   lsattr			  prtstat			  texi2pdf
autoconf			    fmt				   lscpu			  psed				  texindex
autoconf-2.69			    fold			   lslocks			  psfaddtable			  tfmtodit
autoheader			    free			   lslogins			  psfgettable			  tic
autoheader-2.69			    funzip			   lzcat			  psfstriptable			  timeout
autom4te			    g++				   lzcmp			  psfxtable			  tload
autom4te-2.69			    g++-4.8.5			   lzdiff			  pspax				  toe
automake			    gapplication		   lzegrep			  pstree			  top
automake-1.14			    gawk			   lzfgrep			  pstruct			  touch
automake-1.15			    gcc				   lzgrep			  ptar				  tput
autopoint			    gcc-4.8.5			   lzless			  ptar-1.960.0-perl-5.20.2	  tr
autoreconf			    gcc-ar			   lzma				  ptardiff			  troff
autoreconf-2.69			    gcc-config			   lzmadec			  ptardiff-1.960.0-perl-5.20.2	  truncate
autoscan			    gcc-nm			   lzmainfo			  ptargrep			  tset
autoscan-2.69			    gcc-ranlib			   lzmore			  ptargrep-1.960.0-perl-5.20.2	  tsort
autoupdate			    gcov			   m4				  ptx				  tty
autoupdate-2.69			    gcov-4.8.5			   make				  pwdx				  tzselect
awk				    gdbm_dump			   makedb			  pydoc				  ul
base64				    gdbm_load			   makeinfo			  pydoc2.7			  uname
basename			    gdbmtool			   man				  pydoc3.4			  uname26
bashbug				    gdbus			   mandb			  python			  unexpand
binutils-config			    gdiffmk			   manpath			  python-config			  unicode_start
bison				    gencat			   mapscrn			  python-config-2.7		  unicode_stop
bzcmp				    geqn			   mcookie			  python-config-3.4		  uniq
bzdiff				    getconf			   md5sum			  python-wrapper		  unlink
bzegrep				    getent			   mk_cmds			  python2			  unlzma
bzfgrep				    getkeycodes			   mkfifo			  python2.7			  unshare
bzgrep				    getopt			   mktemp			  python2.7-config		  unxz
bzip2recover			    gettext			   mmroff			  python3			  unzip
bzless				    gettext.sh			   mpicalc			  python3.4			  unzipsfx
bzmore				    gettextize			   msgattrib			  python3.4-config		  update-mime-database
c++				    gfortran-4.8.5		   msgcat			  pyvenv-3.4			  uptime
c++-4.8.5			    gio-querymodules		   msgcmp			  q				  users
c++filt				    glib-compile-resources	   msgcomm			  qatom				  utmpdump
c2ph				    glib-compile-schemas	   msgconv			  qcache			  uuidgen
c89				    glib-genmarshal		   msgen			  qcheck			  vdir
c99				    glib-gettextize		   msgexec			  qdepends			  vmstat
c_rehash			    glib-mkenums		   msgfilter			  qfile				  w
cal				    gmake			   msgfmt			  qgrep				  watch
captoinfo			    gmsgfmt			   msggrep			  qlist				  wc
catchsegv			    gobject-query		   msginit			  qlop				  wget
catman				    gpasswd			   msgmerge			  qmerge			  whatis
cc				    gperf			   msgunfmt			  qpkg				  whereis
chage				    gpg-error			   msguniq			  qsearch			  which
chattr				    gpg-error-config		   msguntypot			  qsize				  who
chcon				    gprof			   mtrace			  qtbz2				  whoami
chem				    grap2graph			   namei			  quickpkg			  x86_64
chfn				    gresource			   nano				  quse				  x86_64-pc-linux-gnu-addr2line
chroot				    grn				   ncurses5-config		  qxpak				  x86_64-pc-linux-gnu-ar
chrt				    grodvi			   ncursesw5-config		  ranlib			  x86_64-pc-linux-gnu-as
chsh				    groff			   neqn				  rc-config			  x86_64-pc-linux-gnu-c++
chvt				    groffer			   newgrp			  readelf			  x86_64-pc-linux-gnu-c++-4.8.5
cksum				    grog			   ngettext			  readlink			  x86_64-pc-linux-gnu-c++filt
clear				    grolbp			   nice				  realpath			  x86_64-pc-linux-gnu-cpp
clockdiff			    grolj4			   nl				  recode-sr-latin		  x86_64-pc-linux-gnu-cpp-4.8.5
cmp				    gropdf			   nm				  refer				  x86_64-pc-linux-gnu-dwp
code2color			    grops			   nohup			  rename			  x86_64-pc-linux-gnu-elfedit
col				    grotty			   nproc			  renice			  x86_64-pc-linux-gnu-g++
colcrt				    gsettings			   nroff			  repoman			  x86_64-pc-linux-gnu-g++-4.8.5
colrm				    gtbl			   nsenter			  reset				  x86_64-pc-linux-gnu-gcc
column				    gtester			   nsgmls			  resizecons			  x86_64-pc-linux-gnu-gcc-4.8.5
comm				    gtkdoc-rebase		   numfmt			  rev				  x86_64-pc-linux-gnu-gcc-ar
compile_et			    gzexe			   objcopy			  roff2dvi			  x86_64-pc-linux-gnu-gcc-nm
config_data			    h2ph			   objdump			  roff2html			  x86_64-pc-linux-gnu-gcc-ranlib
config_data-0.420.500-perl-5.20.2   h2xs			   od				  roff2pdf			  x86_64-pc-linux-gnu-gcov
corelist			    head			   oldfind			  roff2ps			  x86_64-pc-linux-gnu-gcov-4.8.5
corelist-5.201.502.140-perl-5.20.2  help2man			   onsgmls			  roff2text			  x86_64-pc-linux-gnu-gfortran-4.8.5
cpan				    hexdump			   openjade			  roff2x			  x86_64-pc-linux-gnu-gpg-error-config
cpan-2.50.0-perl-5.20.2		    hmac256			   openssl			  rpcgen			  x86_64-pc-linux-gnu-gprof
cpp				    hostid			   openvt			  rsync				  x86_64-pc-linux-gnu-ld
cpp-4.8.5			    hpftodit			   osgmlnorm			  runcon			  x86_64-pc-linux-gnu-ld.bfd
csplit				    i386			   ospam			  s2p				  x86_64-pc-linux-gnu-ld.gold
cut				    iconv			   ospcat			  sandbox			  x86_64-pc-linux-gnu-libgcrypt-config
db4.8_archive			    id				   ospent			  scanelf			  x86_64-pc-linux-gnu-nm
db4.8_checkpoint		    ifnames			   osx				  scanmacho			  x86_64-pc-linux-gnu-objcopy
db4.8_deadlock			    ifnames-2.69		   passwd			  scp				  x86_64-pc-linux-gnu-objdump
db4.8_dump			    igawk			   paste			  script			  x86_64-pc-linux-gnu-pcre-config
db4.8_hotbackup			    indxbib			   patch			  scriptreplay			  x86_64-pc-linux-gnu-pkg-config
db4.8_load			    info			   pathchk			  sdiff				  x86_64-pc-linux-gnu-ranlib
db4.8_printlog			    infocmp			   pcprofiledump		  seq				  x86_64-pc-linux-gnu-readelf
db4.8_recover			    infokey			   pcre-config			  setarch			  x86_64-pc-linux-gnu-size
db4.8_sql			    infotocap			   pcregrep			  setfont			  x86_64-pc-linux-gnu-strings
db4.8_stat			    install			   pcretest			  setkeycodes			  x86_64-pc-linux-gnu-strip
db4.8_upgrade			    install-catalog		   pdfmom			  setleds			  x86_64-pc-linux-gnu-xml2-config
db4.8_verify			    install-info		   pdfroff			  setmetamode			  x86_64-pc-linux-gnu-xslt-config
deallocvt			    instmodsh			   pdftexi2dvi			  setsid			  xargs
dgawk				    instmodsh-6.980.0-perl-5.20.2  peekfd			  setterm			  xgettext
diff				    intltool-extract		   perl				  setvtrgb			  xml2-config
diff3				    intltool-merge		   perl5.20.2			  sftp				  xmlcatalog
dir				    intltool-prepare		   perlbug			  sg				  xmllint
dircolors			    intltool-update		   perldoc			  sgml2xml			  xmlwf
dirname				    intltoolize			   perldoc-3.230.0-perl-5.20.2	  sgmlnorm			  xslt-config
du				    ionice			   perlivp			  sgmlspl			  xsltproc
dumpelf				    ipcmk			   perlthanks			  sgmlwhich			  xsubpp
dumpkeys			    ipcrm			   pfbtops			  sha1sum			  xsubpp-3.240.0-perl-5.20.2
dumpsexp			    ipcs			   pg				  sha224sum			  xtrace
dwp				    iptables-xml		   pgawk			  sha256sum			  xz
ebuild				    isosize			   pgrep			  sha384sum			  xzcat
egencache			    jade			   pic				  sha512sum			  xzcmp
eject				    join			   pic2graph			  shasum			  xzdec
elfedit				    json_pp			   piconv			  shasum-5.880.0-perl-5.20.2	  xzdiff
emerge				    json_pp-2.272.30-perl-5.20.2   piconv-2.600.0-perl-5.20.2	  showconsolefont		  xzegrep
emerge-webrsync			    kbd_mode			   pinky			  showkey			  xzfgrep
emirrordist			    kbdinfo			   pkg-config			  shred				  xzgrep
enc2xs				    kbdrate			   pkill			  shuf				  xzless
enc2xs-2.600.0-perl-5.20.2	    kernel-config		   pl2pm			  size				  xzmore
env				    killall			   pldd				  slabtop			  yacc
envsubst			    last			   pmap				  sleep				  yacc.bison
eqn				    lastb			   po4a				  slogin			  yes
eqn2graph			    lastlog			   po4a-build			  soelim			  zcmp
eselect				    ld				   po4a-gettextize		  sort				  zdiff
eu-addr2line			    ld.bfd			   po4a-normalize		  sotruss			  zegrep
eu-ar				    ld.gold			   po4a-translate		  spam				  zfgrep
eu-elfcmp			    ldd				   po4a-updatepo		  spent				  zforce
eu-elflint			    lddlibc4			   po4aman-display-po		  splain			  zgrep
eu-findtextrel			    lddtree			   po4apod-display-po		  split				  zipdetails
eu-ld				    less			   pod2html			  sprof				  zipdetails-2.64.0-perl-5.20.2
eu-make-debug-archive		    lessecho			   pod2man			  ssh				  zipgrep
eu-nm				    lesskey			   pod2man-2.5.3-perl-5.20.2	  ssh-add			  zipinfo
eu-objdump			    lesspipe			   pod2texi			  ssh-agent			  zless
eu-ranlib			    lesspipe.sh			   pod2text			  ssh-copy-id			  zmore
eu-readelf			    lex				   pod2text-2.5.3-perl-5.20.2	  ssh-keygen			  znew
eu-size				    lexgrog			   pod2usage			  ssh-keyscan
eu-stack			    libgcrypt-config		   pod2usage-1.620.0-perl-5.20.2  stat