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1	2	3	4
awk	sed	shell	python

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sed

1. FIND AND REPLACE with SED

replace all the words "ugly" with "beautiful"：

sed -i 's/ugly/beautiful/g' /home/bruno/old-friends/sue.txt

replace all the words "ugly*" with "beautiful"：

sed -i 's/ugly.*/beautiful/g' /home/bruno/old-friends/sue.txt

replace all the words "ugly*" with $VAR：

sed -i 's/ugly.*/'"$VAR"'/g' /home/bruno/old-friends/sue.txt

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shell

1. rmp

rmp command:

rpm -ivh *.rpm              # install
rpm -qpl *.rpm              # list
rpm2cpio *.rpm | cpio -div  # extract

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