The Same Result:
ü cat /etc/passwd |awk -F ':' '{print $1}'
ü cat /etc/passwd |cut -d':' -f1
Extra Command:
※ transfer tab to ,
※ cat xxxx | sed s/'\t'/','/g
§ Show only the # column
§ cat xxx | awk '{print $1 $2}'
§ Show only the # column
§ cat xxx | awk '{print $1 $2}'
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