06-04-2004
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I am having a hard time trying to do the following:
I have a file that looks like this:
0 CacheMaxConn 4 64
0 RMThread 16 3423423
7 DataSource 0 /hello/sas/ses
0 {94545B4-E343-1410-81E4-08000000} 3 DDBE
3 ... (4 Replies)
Discussion started by: yotoruja
4 Replies
2. UNIX for Advanced & Expert Users
Hi,
I have a file
/db01/dat/march 2006/7001DW06.03B
Please note, between "march 2006" there is a space/tab.
While running the following script, it identifies
/db01/dat/march ----> as first file
2006/7001DW06.03B ---> as second file.
SRC_PATH = /db01/dat
SEARCH_FILENAME =... (12 Replies)
Discussion started by: ronald_brayan
12 Replies
3. Shell Programming and Scripting
Hi
At the moment I am able to add text to a file but what I need to do is make sure the same value is not duplicated.
Can anyone tell me how to search a file and prevent an update from taking place if the value to be entered already exists in the file?
Any help would be greatly... (4 Replies)
Discussion started by: straight_edge
4 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I would like to do a search and replace on a file using vi.
Something like this:
:%s/dst_port=****//g
I want to search the entire file and replace all text that does not match dst_port=**** with space or nothing. In other words delete everything except for dst_port=****. The four *... (1 Reply)
Discussion started by: andyblaylock
1 Replies
5. Shell Programming and Scripting
Hi! i'm trying to do a script (i'm not an expert, as you will see...:o) to search files in a directory (and its subdirectories). I'd like to have something like this:
mysearch -a arg1 -b arg2 -c arg3 ecc...
I'd like to be able to search for files in different ways: for example, with
my... (1 Reply)
Discussion started by: Kaminski
1 Replies
6. UNIX for Dummies Questions & Answers
How would i search to find all the lines consisting of of only the letter "z" followed by any four characters? (1 Reply)
Discussion started by: trob
1 Replies
7. UNIX for Advanced & Expert Users
Hi, I have the following command to list files beginning with a specific name and containing some text...
find . -type f -name "dm_merge_domain_adm*" -exec grep -il "Error Message:" '{}' \; -print|xargs ls -ltr
It works fine, but seems to list two of each file, when they only exist once...any... (1 Reply)
Discussion started by: chrislluff1976
1 Replies
8. Shell Programming and Scripting
I am making a script but having little problem. at one part I need to find one number format or other format from a file..
those formats are xxx-xx-xxxx or xxxxxxxxx
i tried
grep '( \{3\}-\{2\}-\{3\} |\{9\})'
if i do them sepratly it work but like this it is not working
Please check... (7 Replies)
Discussion started by: Learnerabc
7 Replies
9. UNIX for Dummies Questions & Answers
Hi guys,
I have a very common issue :( im trying to work it out but I am still not used to it. my problem is searching. very often I should look for piece of string in a text file or a file itself:
I want to learn some easy and professional commands to ease this routine for me. I want to be... (2 Replies)
Discussion started by: messi777
2 Replies
10. Shell Programming and Scripting
without using conventional file searching commands like find etc, is it possible to locate a file if i just know that the file that i'm searching for contains a particular text like "Hello world" or something? (5 Replies)
Discussion started by: arindamlive
5 Replies
mt(1) General Commands Manual mt(1)
Name
mt - magnetic tape manipulating program
Syntax
mt [-f tapename] command [count]
Description
The command permits the operation of a magnetic tape drive.
Options
The -f flag option uses the specified tape device (next argument) in place of either that tape device defined by your TAPE environment
variable (.login or .profile) or /dev/nrmt0h.
Some operations may be performed multiple times by specifying count. By default, performs the requested operation once.
The command argument defines the operation to be performed. Only as many characters as are required to uniquely identify a command need be
specified.
The following is a list of commands:
bsf Backspace count files.
bsr Backspace count records.
cache Allows to use the cache buffer on a tape drive that has the cache buffer feature.
clhrdsf Clear hardware/software problem. Works with tape drives which use the TMSCP tape controller interface This command is
restricted to root access only.
clserex Clear serious exception. Works with tape drives which use the TMSCP tape controller interface
clsub Clear subsystem. Works with tape drives which use the TMSCP tape controller interface This command is restricted to
root access only.
eof, weof Write count end-of-file marks at the current position on the tape.
eotdis Disable end-of-tape detection. When the end of tape is reached, the tape will run off the reel. Only the superuser
can issue this command. The command remains in effect for the device until end-of-tape detection is enabled with the
eoten command.
eoten Enable end-of-tape detection. When the end-of-tape markers are reached, the tape is halted on the reel, between the
two end-of-tape markers. Only the superuser can issue this command. The command remains in effect for the device
until end-of-tape detection is disabled with the eotdis command. This is the default mode after a system boot.
fsf Forward-space count files.
fsr Forward-space count records.
nocache Disables the use of the cache buffer for any tape drive that has the cache buffer feature.
offline, rewoffl Rewind the tape and place the tape unit off-line.
retension Retensions the tape. Retension means moving the tape one complete pass between EOT and BOT.
rewind Rewind the tape.
status Print status information about the tape unit.
Examples
This example shows how to rewind the tape
mt -f /dev/rmt0l rewind
This example shows how to backspace the tape nmt1h three files:
mt -f /dev/nrmt1h bsf 3
This example shows how to write two end-of-file marks at the current position on tape nmt6h:
mt -f /dev/nrmt6h eof 2
Return Values
In shell scripts, returns a 0 exit status when the operation(s) were successful, 1 if the command was unrecognized, and 2 if an operation
failed.
Files
/dev/rmt?h or /dev/rmt?l
Raw magnetic tape interface with rewind when closed
/dev/nmt?h or /dev/nmt?l
Raw magnetic tape interface with no rewind when closed
See Also
dd(1), tar(1), ioctl(2), mtio(4), tms(4), environ(7)
mt(1)