Sponsored Content
Top Forums Shell Programming and Scripting Print n lines from top and n lines from bottom of all files with .log extenstion Post 302887900 by Don Cragun on Tuesday 11th of February 2014 12:53:11 PM
Old 02-11-2014
Quote:
Originally Posted by Scrutinizer
IMO, the expansion of *.log cannot exceed ARG_MAX limitations since for .. in is shell syntax, so there is no new process to which arguments need to be passed..
Yes, you are absolutely correct.

I was looking at ls *.log in kung_fu_panda's proposal (which can exceed ARG_MAX limitations). I should have gotten some sleep before I posted my response.

Thanks,
Don
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

grep for a particular pattern and remove few lines above top and bottom of the patter

grep for a particular pattern and remove 5 lines above the pattern and 6 lines below the pattern root@server1 # cat filename Shell Programming and Scripting test1 Shell Programminsada asda dasd asd Shell Programming and Scripting Post New Thread Shell Programming and S sadsa ... (17 Replies)
Discussion started by: fed.linuxgossip
17 Replies

2. Shell Programming and Scripting

print lines AFTER lines cointaining a regexp (or print every first and fourth line)

Hi all, This should be very easy but I can't figure it out... I have a file that looks like this: @SRR057408.1 FW8Y5CK02R652T length=34 AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT +SRR057408.1 FW8Y5CK02R652T length=34 FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8 @SRR057408.2 FW8Y5CK02TBMHV length=52... (1 Reply)
Discussion started by: kmkocot
1 Replies

3. Shell Programming and Scripting

Search for string and print top and bottom line

Hi Folks I need a one liner to parse through a log and if the string is found print the line above, the line with the string and the line below. example: The ball is green and blue Billy through the ball higer. Jane got hurt with the ball. So if I search for Billy I would need the 3... (1 Reply)
Discussion started by: bombcan
1 Replies

4. Shell Programming and Scripting

Remove x lines form top and y lines form bottom using AWK?

How to remove x lines form top and y lines form bottom. This works, but like awk only cat file | head -n-y | awk 'NR>(x-1)' so remove last 3 lines and 5 firstcat file | head -n-3 | awk 'NR>4' (5 Replies)
Discussion started by: Jotne
5 Replies

5. Shell Programming and Scripting

Copy/print all lines between pattern is found in .log files

Hi, I have a folder with multiple (< 33) .log files. And I have to copy the lines between two patterns from all the .log files to a new file. (script file with a loop?) Thanks in advance. 1.log ... .. xx1> begin ... .. .. >>> Total: 2 Alarms .. .. (17 Replies)
Discussion started by: AK47
17 Replies

6. Shell Programming and Scripting

Print first 20 lines from all .log files

RHEL 5.8 In a directory I have more than 200 files with the extension .log Using head command I want to print first 20 lines of each log file. For each .log file, it should print like below Printing first 20 lines of : GRP_error_April29.log Apr 29 04:02:05 raptor03b syslogd 1.4.1:... (4 Replies)
Discussion started by: John K
4 Replies

7. Shell Programming and Scripting

How to print from bottom to top?

Hi, i have a file which contains PID and wanted to execute kill command. but the thing is, when killing PID's needs to kill PID from bottom to top. Please help INPUT 21414 sh -c extract.ksh ASA 21416 /bin/ksh extract.ksh ASA 21428 /usr/bin/perl -w /var/tmp/tempperl.21416 ASA... (4 Replies)
Discussion started by: reignangel2003
4 Replies

8. UNIX for Dummies Questions & Answers

awk - (URGENT!) Print lines sort and move lines if match found

URGENT HELP IS NEEDED!! I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but - Currently, script is not printing lines to File3.txt in order. - Also the matching lines are not moving out of File1.txt ... (1 Reply)
Discussion started by: High-T
1 Replies

9. UNIX for Beginners Questions & Answers

Print number of lines for files in directory, also print number of unique lines

I have a directory of files, I can show the number of lines in each file and order them from lowest to highest with: wc -l *|sort 15263 Image.txt 16401 reference.txt 40459 richtexteditor.txt How can I also print the number of unique lines in each file? 15263 1401 Image.txt 16401... (15 Replies)
Discussion started by: spacegoose
15 Replies

10. UNIX for Beginners Questions & Answers

How to print lines from a files with specific start and end patterns and pick only the last lines?

Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" . I have attached sample input file and the desired input should be as: INPUT FORMAT: SELECT ABCD, DEFGH, DFGHJ, JKLMN, AXCVB,... (5 Replies)
Discussion started by: nani2019
5 Replies
LOGGER(1)						    BSD General Commands Manual 						 LOGGER(1)

NAME
logger -- make entries in the system log SYNOPSIS
logger [-is] [-d SD] [-f file] [-m msgid] [-p pri] [-t tag] [message ...] DESCRIPTION
logger provides a shell command interface to the syslog(3) system log module. Options: -d sd Log this in the structured data (SD) field. (sd has to be passed as one argument and will require careful quoting when used from the shell.) -f file Log the specified file. -i Log the process id of the logger process with each line. -m msgid The MSGID used for the message. -p pri Enter the message with the specified priority. The priority may be specified numerically or as a ``facility.level'' pair. For example, ``-p local3.info'' logs the message(s) as informational level in the local3 facility. The default is ``user.notice''. -s Log the message to standard error, as well as the system log. -t tag Mark every line in the log with the specified tag. message Write the message to log; if not specified, and the -f flag is not provided, standard input is logged. EXIT STATUS
The logger utility exits 0 on success, and >0 if an error occurs. EXAMPLES
logger System rebooted logger -p local0.notice -t HOSTIDM -f /dev/idmc SEE ALSO
syslog(3), syslogd(8) STANDARDS
The logger utility conforms to IEEE Std 1003.2-1992 (``POSIX.2''). BSD
May 14, 2010 BSD
All times are GMT -4. The time now is 06:07 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy