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Jan 272010

Extract column data using awk


A simple awk command print the 1st column of top command

# top -bc -n1 | awk '{print $1}'

If you want to specify the field separator, you can do the following

# awk -F':' '{print $1}' /etc/passwd

Which print the 1st column of file /etc/password, as if they are split by :

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