07-19-2010
Usually you use shell scripting to invoke external commands. awk is such an external command. It's quite powerful tool for text processing. When I tell you to use gawk, nawk etc, I'm just saying not to use the old awk interpreter found in /usr/bin on Solaris, because it's too old and broken. So, if you're on Solaris, you should invoke the command I posted not as awk ..., but as nawk ... (or gawk etc).
Hope this helps.
This User Gave Thanks to radoulov For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
STEP 1
# Set variable
FILE=/tmp/mainfile
SEARCHFILE =/tmp/searchfile
# THIS IS THE MAIN FILE.
cat /tmp/mainfile
Interface Ethernet0/0 "outside", is up, line protocol is up
Hardware is i82546GB rev03, BW 100 Mbps
Full-Duplex(Full-duplex), 100 Mbps(100 Mbps)
MAC address... (6 Replies)
Discussion started by: irongeekio
6 Replies
2. Shell Programming and Scripting
I am using the while-loop to read a file.
The file has lines with null-terminated strings (words, actually.)
What I have by that reading - just a first word up to '\0'!
I need to have whole string up to 'new line' - (LF, 10#10, 16#A)
What I am doing wrong?
#make file 'grb' with... (6 Replies)
Discussion started by: alex_5161
6 Replies
3. Shell Programming and Scripting
I have the following text format in a file which lists the question first and then 5 choices
after that the explanantion and finally the answer.
1.The amount of time it takes for most of a worker’s occupational knowledge and skills to become
obsolete has been declining because of the... (2 Replies)
Discussion started by: nanchil_guy
2 Replies
4. Shell Programming and Scripting
I'm kinda stuck on this one, I have 7 files with 30.000 lines/file like this
050 0.023 0.504336
050 0.024 0.529521
050 0.025 0.538908
050 0.026 0.537035
I want to find the mean line by line of the third column from the files named like this:
Stat-f-1.dat .... Stat-f-7.dat
Stat-s-1.dat... (8 Replies)
Discussion started by: AriasFco
8 Replies
5. Shell Programming and Scripting
Hi,
I want to read a live log file line by line and considering those line which start from time stamp;
Below code I am using, which read line but throws an exception when comparing line that does not contain error code
tail -F /logs/COMMON-ERROR.log | while read myline; do... (2 Replies)
Discussion started by: ketanraut
2 Replies
6. UNIX for Advanced & Expert Users
Hi ,
i have a file with data as below.This is same file. But actual file contains to many rows.
i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ?
Field 004... (7 Replies)
Discussion started by: vadlamudy
7 Replies
7. Shell Programming and Scripting
Hello,
I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be:
SRVXPAPI001 ERRO JUN24 07:28:34 1775
REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
... (8 Replies)
Discussion started by: Ferocci
8 Replies
8. Shell Programming and Scripting
Dear All,
fileName: therm.txt
nc3h7o2h 7/27/98 thermc 3h 8o 2 0g 300.000 5000.000 1390.000 41
1.47017550e+01 1.71731699e-02-5.91205329e-06 9.21842570e-10-5.36438880e-14 2
-2.99988556e+04-4.93387892e+01 2.34710908e+00 4.34517484e-02-2.65357553e-05 3
... (7 Replies)
Discussion started by: linuxUser_
7 Replies
9. UNIX for Beginners Questions & Answers
Input file:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 (6 Replies)
Discussion started by: Sagar Singh
6 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
i want to write a shell script read below file line by line and want to exclude the lines which contains empty value for MOUNTPOINT field.
i am using centos 7 Operating system.
want to read below file.
# cat /tmp/d5
NAME="/dev/sda" TYPE="disk" SIZE="60G" OWNER="root"... (4 Replies)
Discussion started by: balu1234
4 Replies
LEARN ABOUT ULTRIX
ucblinks
ucblinks(1B) SunOS/BSD Compatibility Package Commands ucblinks(1B)
NAME
ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices
SYNOPSIS
/usr/ucb/ucblinks [-e rulebase] [-r rootdir]
DESCRIPTION
ucblinks creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.
ucblinks does not remove unneeded compatibility links; these must be removed by hand.
ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been created,
since the reconfiguration may have resulted in more compatibility names being needed.
In releases prior to SunOS 5.4, ucblinks used a nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses nawk
for the default operation, although nawk rule-bases can still be specifed with the -e option. The nawk rule-base equivalent to the SunOS
5.4 default operation can be found in /usr/ucblib/ucblinks.awk.
OPTIONS
-e rulebase Specify rulebase as the file containing nawk(1) pattern-action statements.
-r rootdir Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.
FILES
/usr/ucblib/ucblinks.awk sample rule-base for compatibility links
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO
devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)
SunOS 5.10 13 Apr 1994 ucblinks(1B)