2021年3月
linux shell命令之paste
摘要： vi FILE1 Shanghai Jiaotong University University of Toronto Beijing University Southest University Victory Universityvi FILE2 Shanghai Toronto Beijing 阅读全文
posted @ 2021-03-11 19:27 zhudaheng123 阅读(222) 评论(0) 推荐(0)
linux shell 命令之cut
摘要： cut -c3 TEACHER.db #提取TEACHER.db第三个字符 L L H L Zcut -c1-5 TEACHER.db #提取TEACHER.db第1个到第5个字符 B Liu C Lin D Hou J Luo Y Zhacut -d: -f1,4 TEACHER.db #提取TE 阅读全文
posted @ 2021-03-11 19:09 zhudaheng123 阅读(93) 评论(0) 推荐(0)
linux shell命令之join
摘要： vi TEACHER.db B Liu:Shanghai Jiaotong University:Shanghai:China C Lin:University of Toronto:Toronto:Canada D Hou:Beijing University:Beijing:China J Lu 阅读全文
posted @ 2021-03-11 19:00 zhudaheng123 阅读(186) 评论(0) 推荐(0)
Linux Shell命令之uniq
摘要： cat CARGO3.db ThinkPad:USA:14000:2009:X301 ThinkPad:USA:14000:2009:X301 ThinkPad:USA:14000:2009:X301 HP:China:5600:2010:DM3 SumSung:korea:5400:2009:Q3 阅读全文
posted @ 2021-03-11 18:32 zhudaheng123 阅读(252) 评论(0) 推荐(0)