Linux parancssor (TTBML1400)

cat sample2.txt | head -7 | tail -5
ls -l > temp
ls -l >> temp
wc temp
sort temp | uniq | wc
ls -al | grep Aug | grep -v '200[456]' | more
Mail -s "Subject" banm@vocs.unideb.hu < temp
find . -name 'mywe*' 2> err
ls Documents ABC > dirlist 2>&1