Linux Command Examples

Linux Command Examples

sed -n '10,20p' access.log

Create a file including 60 whoami
for n in $(seq 60)
do
echo 'whoami' >> whoami60
done

seq - print a sequence of numbers
SYNOPSIS
seq [OPTION]... LAST
seq [OPTION]... FIRST LAST
seq [OPTION]... FIRST INCREMENT LAST

Unzip multiple files
for z in *.zip; do unzip $z; done

Delete all files except one
rm -rf $(ls | grep -v savefile)
Delete all dir except one directory
rm -rf $(find . -type d |grep -v savedir)

Check shell type
echo $0
echo $SHELL
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