lines = f.readlines() # 行读取(将所有行读取出来暂存到内存中) first_line = lines[0] # 获取第一行 last_line...= lines[-1] # 获取最后一行 print "文件:{}的第一行内容是:{}".format(file,first_line) print "文件:{}的最后一行内容是:{...}".format(file,last_line) 注:with语句会...
我使用下面的行删除文件中的所有重复行。 my %lines; while (<DATA>) { print if not $lines{$_}++; } 但是,我只需要删除有匹配图案的重复线条.示例输入文件: line1 line2 line3 line1 #duplicate line line2 #duplicate line line4 line5 虽然line1和line2都是重复的,但我只想删除line1的复制。产出...
Add line number for all non-empty-lines in a file $ sed '/./=' thegeekstuff.txt | sed 'N; s/\n/ /' More sed examples:Advanced Sed Substitution Examples 6. awk command examples Remove duplicate lines using awk $ awk '!($0 in array) { array[$0]; print }' temp Print all lines...
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc) # for examples # If not running interactively, don't do anything [ -z "$PS1" ] && return # don't put duplicate lines in the history. See bash(1) for more options # ... or force ignoredups and ignore...
The uniq command filters duplicate adjacent lines from input. This is often used in conjunction with sort.Basic syntax:uniq [options] [input]Options:-c –Prefix unique lines with count of occurrences. -d –Only show duplicated lines, not unique ones....
Add line number for all non-empty-lines in a file $ sed '/./=' thegeekstuff.txt | sed 'N; s/\n/ /' More sed examples: Advanced Sed Substitution Examples 6. awk command examples Remove duplicate lines using awk $ awk '!($0 in array) { array[$0]; print }' temp Print all lin...
The first column is an arbitrary number, it defines the request. Lines with the same number are part of the same HTTP transaction. The second column is the tag of the log message. All log entries are tagged with a tag indicating what sort of activity is being logged. Tags starting with...
[1]:Started firewalld-dynamic firewall daemon.9月0708:33:55JiekeXu firewalld[8220]:WARNING:/etc/sysconfig/network-scripts/ifcfg-ens32:Duplicate option definition:'BOO...tatic"'Hint:Some lines were ellipsized,use-l to showinfull.[root@JiekeXu~]#[root@JiekeXu~]# systemctl stop firewalld...
print all duplicate lines delimit-method={none(default),prepend,separate} Delimiting is done with blank lines. [rhel@localhost ~]$ uniq -D sort.txt 3 3 1 1 [rhel@localhost ~]$ -c, --count(显示文件行重复的次数) prefix lines by the number of occurrences ...
Name Last commit message Last commit date Latest commit bwarden v48 c4b7f91· History 329 Commits .github/workflows checkdependency for CI. data Adopt an instance service for providers docs Remove duplicate lines examples auto-prepend username to sudo directives ...