Extract a portion of string from each line in Linux

 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Extract a portion of string from each line in Linux
# 8  
Old 05-20-2018
Thanks, Don Cragun - I switched from one version to the other on the fly and didn't test / control thoroughly.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Extract portion of data

Hi Gurus, I need some help in extracting some of these information and massage it into the desired output as shown below. I need to extract the last row with the header in below sample which is usually the most recent date, for example: 2012-06-01 142356 mb 519 -219406 mb 1 ... (9 Replies)
Discussion started by: superHonda123
9 Replies

2. Shell Programming and Scripting

How to extract portion of a string?

Hi Gurus, Would like to seek some help on how to extract a portion of string from log's output as shown below. Sample of raw data: piece handle=/test123/disk_dump/test123/df0_cntrl_PCPFCI20120404_68498 tag=TAG20120404T180035 comment=NONE piece... (13 Replies)
Discussion started by: superHonda123
13 Replies

3. Shell Programming and Scripting

Extract a string from a line

Hiee all Can anyone tell me how to extract a string from a given line. STAPISDK_RELEASE_32_BL012_2011_JAN_25.1597 I want to extract BL012 from above. as 102 keeps on changing i want smthing like that it extract BL and 102 extrct by its own. Thankx guyzz (9 Replies)
Discussion started by: abhijtr
9 Replies

4. Shell Programming and Scripting

How to extract a text portion from a file

Can some one help me with shell script to extract a text block between two known strings. The given input file is as below: Name: abs Some tesxt.... Some tesxt.... Some tesxt.... end of text Name: xyz Some tesxt.... Some tesxt.... Some tesxt.... end of text Name: efg Some... (5 Replies)
Discussion started by: ejazs0
5 Replies

5. Shell Programming and Scripting

extract string portion from filename using sed

Hi All, I posted something similar before but I now have a another problem. I have filenames as below TOP_TABIN240_20090323.200903231830 TOP_TABIN235_1_20090323.200903231830 i need to extract the dates as in bold. Using bash v 3.xx Im trying to using the print sed command but... (11 Replies)
Discussion started by: santam
11 Replies

6. Shell Programming and Scripting

extract string portion using sed

Hi All I have 3 files as listed below and highlighted in bold the portions of the filenames I need to extract: TOS_TABIN218_20090323.200903231830 TOS_TABIN219_1_20090323.200903231830 TOS_TABIN219_2_20090323.200903231830 I tried source_tabin_name=`echo $fname | sed 's/_.*//'` but I... (6 Replies)
Discussion started by: santam
6 Replies

7. Shell Programming and Scripting

how to extract a string value from the given line

Hi I have an input as follows: param1:value1|param2:value2|param3:value3|param4:value4|param5:value5 where, "|" and ":" are delimiters Now suppose, I want to extract the value corresponding to "param4", i.e. "value4" in this case. In case we use awk, I want to use the value in shell... (1 Reply)
Discussion started by: gaurav_1711
1 Replies

8. Shell Programming and Scripting

extract date portion from file

Hi, I have a file where there is a date field (single line variable length file) how to extract just the date portion from it the position of date field may vary anywhere in the line but will always have the format mm-dd-yyyy for eg . xxxxxxxxxxxxxxx09-10-2006xxxxxxxxxxxxxxxxxxxx (5 Replies)
Discussion started by: misenkiser
5 Replies

9. Shell Programming and Scripting

extract a portion of log file

hello, I want to grep the log file according to time and get the portion of log from one particular time to other. I can grep for individual lines by time but how should I print lines continuously from given start time till end till given end time. Appreciate your ideas, Thanks chandra (8 Replies)
Discussion started by: chandra004
8 Replies

10. UNIX for Dummies Questions & Answers

How to extract a portion of a string from the whole string

How to extract a portion of a string from a full string using unix. For example: Say source string is = "req92374923.log" I want only the numeric portion of the string say "92374923" how to do that in Unix. (2 Replies)
Discussion started by: ds_sastry
2 Replies
Login or Register to Ask a Question
xfs_logprint(8) 					      System Manager's Manual						   xfs_logprint(8)

NAME
xfs_logprint - print the log of an XFS filesystem SYNOPSIS
xfs_logprint [ options ] device DESCRIPTION
xfs_logprint prints the log of an XFS filesystem (see xfs(5)). The device argument is the pathname of the partition or logical volume con- taining the filesystem. The device can be a regular file if the -f option is used. The contents of the filesystem remain undisturbed. There are two major modes of operation in xfs_logprint. One mode is better for filesystem operation debugging. It is called the transactional view and is enabled through the -t option. The transactional view prints only the portion of the log that pertains to recovery. In other words, it prints out complete transactions between the tail and the head. This view tries to display each transaction without regard to how they are split across log records. The second mode starts printing out information from the beginning of the log. Some error blocks might print out in the beginning because the last log record usually overlaps the oldest log record. A message is printed when the physical end of the log is reached and when the logical end of the log is reached. A log record view is displayed one record at a time. Transactions that span log records may not be decoded fully. OPTIONS
-b Extract and print buffer information. Only used in transactional view. -c Attempt to continue when an error is detected. -C filename Copy the log from the filesystem to the file filename. The log itself is not printed. -d Dump the log from front to end, printing where each log record is located on disk. -D Do not decode anything; just print data. -e Exit when an error is found in the log. Normally, xfs_logprint tries to continue and unwind from bad logs. However, sometimes it just dies in bad ways. Using this option prevents core dumps. -f Specifies that the filesystem image to be processed is stored in a regular file at device (see the mkfs.xfs(8) -d file option). This might happen if an image copy of a filesystem has been made into an ordinary file with xfs_copy(8). -l logdev External log device. Only for those filesystems which use an external log. -i Extract and print inode information. Only used in transactional view. -q Extract and print quota information. Only used in transactional view. -n Do not try and interpret log data; just interpret log header information. -o Also print buffer data in hex. Normally, buffer data is just decoded, so better information can be printed. -s start-block Override any notion of where to start printing. -t Print out the transactional view. -v Print "overwrite" data. -V Prints the version number and exits. SEE ALSO
mkfs.xfs(8), mount(8). xfs_logprint(8)