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Category Archives: Awk Command
How to using multiple delimiters in awk and sed
Multiple delimiter-separated fields in awk or sed.
Using awk command:
➜ awk -F'[:=|]’ ‘{print $1, $2, $3}’ test.log;
Using sed command:
➜ sed ‘s/[:=|]/ /g’ test.log Continue reading
rename file linux – use rename cmd or mv cmd or awk cmd
Rename file in linux has two ways: linux rename command and linux mv command. linux rename command rename command – renames multiple files. Ubuntu is used as the test system, it does not have the remanae command installed by default. … Continue reading
Posted in File & Directory, Awk Command, Internet Technology
Tagged linux command, mv, rename file linux
2 Comments
AWK tutorial: awk group by count
When we are dealing with log files, we often need to count the number of times some keywords appear. For example, count the number of times the access log ip appears. Here we can use linux awk command to handle. … Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk group by, linux awk, linux command
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awk merge files base on the keyword
use the awk variables NR and FNR merge files base on the keywords.
awk -F’ ‘ ‘NR==FNR{a[$1]=$2;}NR!=FNR{print $0, a[$1]}’ test-4.txt test-5.txt Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk merge files, awk NR FNR, linux awk
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awk custom function and examples
Here, you need to use the awk custom function to implement the abs function.
awk ‘function abs(x){return (x Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk function, linux awk, linux command
1 Comment
AWK tutorial: find and kill process use awk
Step 1. View the process ID pid of the top command.
Step 2. Use the awk command to get the process ID.
Step 3. Use xargs kill to kill top process ID. Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, grep examples, linux command, xargs kill
1 Comment
AWK tutorial: awk -F and awk BEGIN{ FS … }
Usually, when I use awk for text processing, I prefer to use the awk -F option for text field separation. Of course, we can also use the combination of BEGIN and FS to achieve the same goal. Let’s take a … Continue reading
Posted in Awk Command, Text Processing
Tagged awk -F, awk begin fs, awk examples, linux awk, linux command
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AWK tutorial: awk regex example
What Is Regex?
Types of Regex:BRE and ERE.
Awk using BRE regex Patterns, Special Characters;
Awk using ERE regex Patterns, matches the start of text… Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk regex example, linux command
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use the linux command to find the max value and print
Mostly used for log processing, there are several ways: first way: awk -v, second way: awk+sort+head, Third way: sed+sort+head, fourth way: sort -t+head … Continue reading
Posted in Awk Command, Sed Command
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Linux shell batch move files, delete spaces, rename files
1. Use linux find, move files in batch;
2. Use linux find, delete empty directories in batch;
3. Use shell while loop, batch delete spaces in file names；
4. Use linux awk batch rename files;
Posted in Awk Command
Tagged awk examples, linux for loop, shell if else
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awk loop example: awk for and while
awk for loop:
awk -F”#” ‘{for(i=1;iContinue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk for loop, awk while loop, linux awk
1 Comment
AWK tutorial: three ways of awk execution
Linux awk command execution ways： 1. Command line execution Detailed introduction of syntax, see 《Linux awk》 2. Shell script file execution Explanation: !/usr/bin/awk The first line of #!/usr/bin/awk is the awk command location. use : ➜ which awk /usr/bin/awk 3. … Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk exec, linux awk, linux command
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awk NR FNR difference
Linux awk command can use variables NR and FNR to process multiple files. NR : ordinal number of the current record, multiple files self-increase FNR : ordinal number of the current record in the current file awk NR example Processing … Continue reading
AWK tutorial: awk sort uniq
In daily development, we often use awk command to cut and sort log file columns and count them. awk sort uniq count example awk column count linux Sort – n : sorted by the size of the value; – r … Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk sort uniq, linux awk, linux command
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AWK tutorial: split on character awk or cut
In the previous article, we introduced the use of linux awk for string cutting. Here we introduce a method. use awk -F parameter use awk split function For more awk usage, please refer to the following article: Let’s look at … Continue reading
Posted in Awk Command, Text Processing
Tagged awk examples, awk split, cud -d, linux command
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