Notice the last line of the output below. etc/nginx/sites-available/: server_name If you use the -R option, grep will follow all symbolic links: grep -R /etc
#Grep unique full#
The output will include matching lines prefixed by the full path to the file: /etc/hosts:127.0.0.1
#Grep unique how to#
Here is an example showing how to search for the string in all files inside the /etc directory: grep -r /etc , instead of -r, use the -R option (or -dereference-recursive). When this option is used grep will search through all files in the specified directory, skipping the symlinks that are encountered recursively. To recursively search for a pattern, invoke grep with the -r option (or -recursive). If you don’t want that line to be shown pass the output to another grep instance as shown below. As you can see in the output above there is also a line containing the grep process. You can also chain multiple pipes in on command. Using Grep to Filter the Output of a Command #Ī command’s output can be filtered with grep through piping, and only the lines matching a given pattern will be printed on the terminal.įor example, to find out which processes are running on your system as user www-data you can use the following psĬommand: ps -ef | grep www-data www-data 18247 12675 4 16:00 ? 00:00:00 php-fpm: pool www To display the lines that do not match a pattern, use the -v ( or -invert-match) option.įor example, to print the lines that do not contain the string nologin you would use: grep -v nologin /etc/passwd root:x:0:0:root:/root:/bin/bashĬolord:x:124:124::/var/lib/colord:/bin/false If the string includes spaces, you need to enclose it in single or double quotation marks: grep "Gnome Display Manager" /etc/passwd Invert Match (Exclude) # The output should look something like this: root:x:0:0:root:/root:/bin/bash The most basic usage of the grep command is to search for a string (text) in a file.įor example, to display all the lines containing the string bash from the /etc/passwdįile, you would run the following command: grep bash /etc/passwd ORA-39151: Table "WKSYS"."WK$_SOURCE_GROUP" exists.The Linux Command Line Series: An Introduction To Linux Commands Search for a String in Files # All dependent metadata and data will be skipped due to table_exists_action of skip ORA-39111: Dependent object type TRIGGER:"SYSMAN"."SPACE_METRICS_PURGE_TRIGGER" skipped, base object type VIEW:"SYSMAN"."MGMT_SPACE_PURGE" already exists ORA-39111: Dependent object type TRIGGER:"SYSMAN"."SEV_ANNOTATION_DELETE_TR" skipped, base object type VIEW:"SYSMAN"."MGMT_SEVERITY_ANNOTATION" already exists ORA-39111: Dependent object type TRIGGER:"SYSMAN"."SEV_ANNOTATION_INSERT_TR" skipped, base object type VIEW:"SYSMAN"."MGMT_SEVERITY_ANNOTATION" already exists ORA-31684: Object type TABLESPACE:"TEMP" already exists ORA-31684: Object type TABLESPACE:"SYSAUX" already exists ORA-31684: Object type TABLESPACE:"UNDOTBS1" already exists > cat import.log | grep ORA-39082 | wc -l > cat import.log | grep ORA-29357 | wc -l > cat import.log | grep ORA-39083 | wc -l I did the following workaround to prune the ORA-39151 grep ORA-39111 grep ORA-31684 redirecting the output to another file then search with the same for ORA- patternĬat full_import.log | grep -v -e ORA-39151 -e ORA-39111 -e ORA-31684 >import.log > cat full_import.log | grep ORA-31684 | wc -līut there are 42 Error still missing. > cat full_import.log | grep ORA-39111 | wc -l
> cat full_import.log | grep ORA-39151 | wc -l I went through the file and found some errors and did simple word count command The log file ends with "Job "SYSTEM"."SYS_IMPORT_FULL_01" completed with 3384 error(s) at 11:38:14" which shows that we have 3384 error in the log file
#Grep unique manual#
I had some manual analysis and workarounds to find out the errors however it consumes time and i am sure there are more easier way. So I am looking for a way to list the distinct errors. I have a huge import log file and it's too hard to review the full log file to verify all reported errors are ignorable.
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