Hello,
I am a Newbie in ksh Unix Script.
So I must write a ksh/sh script who read character at a position in a File. So also it must read all the lines who belongs at these characters , then write these lines in a another File.
Can you help me , or give little councils to advance with my... (5 Replies)
Hi y'all...I've been wracking my brain over this very simple script that reads in a textfile and echos each line. But I keep getting an error.
Below is my script:
#!/bin/bash
while read myline
do
echo $myline
done < t_file-20080221.01.asc
The error I am getting is:
syntax error... (1 Reply)
Hi All,
I want a script to test folder permissions.( to alert me if a folder /abc/xyz does not have 775 permissions). i want to test /abc/xyz is having 775 permissions or not if not it has to alert me.
Please help me ASAP
Thanks in advance (4 Replies)
Hi,
root@server] df -h
121G 14G 101G 12% /home
147G 126G 14G 91% /backup
We having our site files and images are storing in
/backup/home/user/files/ through symbolic link created in /home directory pointing in /backup directory as following.
root@server] cd /home... (1 Reply)
This is the code:
while test 1 -eq 1
do
read a
$a
if test $a = stop
then
break
fi
done
I read a command on every loop an execute it.
I check if the string equals the word stop to end the loop,but it say that I gave too many arguments to test.
For example echo hello.
Now the... (1 Reply)
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
hi all
i have a problem how to read file location..I read file as FILE=/home/tmp/new.file.but t is not useful for me.But i want my script read file location where the file is and copy in directory at boot time. Every time of booting files are copied in respective folder.please help !!!!:) (2 Replies)
Hello, I have a comma seperated data sheet with multiple fields of biological data. One column contains the ID name of the sample, where there could be more than one sample separated by a comma. I would like a script that reads this field, and for each sample ID, copies the entire line and writes... (18 Replies)
Hi,
I have on Designdocument in that information is stored with in tabular format.I need Perlscript to read and write the datausing perl script?
Regards,
Ravi (0 Replies)
Hi,
I have on Designdocument in that information is stored with in tabular format.I need Perl/unix script to read and write the data
using perl script?
Regards,
Ravi (4 Replies)
Discussion started by: toravi.pentaho
4 Replies
LEARN ABOUT SUNOS
settime
touch(1) User Commands touch(1)NAME
touch, settime - change file access and modification times
SYNOPSIS
touch [-acm] [-r ref_file | -t time] file...
touch [-acm] [date_time] file...
settime [-f ref_file] [date_time] file...
DESCRIPTION
The touch utility sets the access and modification times of each file. The file operand is created if it does not already exist.
The time used can be specified by -t time, by the corresponding time fields of the file referenced by -r ref_file, or by the date_time op-
erand. If none of these are specified, touch uses the current time (the value returned by the time(2) function).
If neither the -a nor -m options are specified, touch updates both the modification and access times.
A user with write access to a file, but who is not the owner of the file or a super-user, can change the modification and access times of
that file only to the current time. Attempts to set a specific time with touch will result in an error.
The settime utility is equivalent to touch -c [date_time] file.
OPTIONS
The following options are supported in the touch and settime utilities:
touch
The following options are supported for the touch utility:
-a Changes the access time of file. Does not change the modification time unless -m is also specified.
-c Does not create a specified file if it does not exist. Does not write any diagnostic messages concerning this condition.
-m Changes the modification time of file. Does not change the access time unless -a is also specified.
-r ref_file Uses the corresponding times of the file named by ref_file instead of the current time.
-t time Uses the specified time instead of the current time. time will be a decimal number of the form:
[[CC]YY]MMDDhhmm[.SS]
where each two digits represent the following:
MM The month of the year [01-12].
DD The day of the month [01-31].
hh The hour of the day [00-23].
mm The minute of the hour [00-59].
CC The first two digits of the year.
YY The second two digits of the year.
SS The second of the minute [00-61].
Both CC and YY are optional. If neither is given, the current year will be assumed. If YY is specified, but CC is not, CC
will be derived as follows:
+-----------------------------------------------------------+
|If YY is: CC becomes: |
| 69-99 19 |
| 00-38 20 |
| 39-68 ERROR |
+-----------------------------------------------------------+
The resulting time will be affected by the value of the TZ environment variable. If the resulting time value precedes the
Epoch, touch will exit immediately with an error status. The range of valid times is the Epoch to January 18, 2038.
The range for SS is [00-61] rather than [00-59] because of leap seconds. If SS is 60 or 61, and the resulting time, as
affected by the TZ environment variable, does not refer to a leap second, the resulting time will be one or two seconds
after a time where SS is 59. If SS is not given, it is assumed to be 0.
settime
The following option is supported for the settime utility:
-f ref_file Uses the corresponding times of the file named by ref_file instead of the current time.
OPERANDS
The following operands are supported for the touch and settime utilities:
file A path name of a file whose times are to be modified.
date_time Uses the specified date_time instead of the current time. This operand is a decimal number of the form:
MMDDhhmm[YY]
where each two digits represent the following:
MM The month of the year [01-12].
DD The day of the month [01-31].
hh The hour of the day [00-23].
mm The minute of the hour [00-59].
YY The second two digits of the year.
YY is optional. If it is omitted, the current year will be assumed. If YY is specified, the year will be derived
as follows:
+-----------------------------------------------------------+
|YY Corresponding Year |
| 69-99 1969-1999 |
| 00-38 2000-2038 |
| 39-68 ERROR |
+-----------------------------------------------------------+
If no -r option is specified, no -t option is specified, at least two operands are specified, and the first operand is an
eight- or ten-digit decimal integer, the first operand will be assumed to be a date_time operand. Otherwise, the first op-
erand will be assumed to be a file operand.
USAGE
See largefile(5) for the description of the behavior of touch when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of touch: LANG, LC_ALL, LANG, LC_ALL,
LC_CTYPE, LC_MESSAGES, and NLSPATH.
TZ Determine the timezone to be used for interpreting the time option-argument or the date_time operand.
EXIT STATUS
The following exit values are returned:
0 The touch utility executed successfully and all requested changes were made.
>0 An error occurred. The touch utility returned the number of files for which the times could not be successfully modified.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO time(2), attributes(5), environ(5), largefile(5), standards(5)NOTES
Users familiar with the BSD environment will find that for the touch utility, the -f option is accepted but ignored. The -f option is
unnecessary because touch will succeed for all files owned by the user regardless of the permissions on the files.
SunOS 5.10 22 Jun 2001 touch(1)
02-20-2017
