I had created a function awhile back to create a lock file based upon the process number of the shell. The function takes two arguments, one for the name of the log file and the other is $$. The script creates a lock file in the /tmp directory. This file holds the process ID of the shell that created it. If you attempt to execute the script while another instance was running, this function will prevent the second instance from running. Works well for me. Feel free to use if you so choose. added code tags for readability --oombera
Dears,
I've written a script which allows me to send mails in different formats with different attaches. Now I still want to add a feature to this script. My users would like to be able to receive a "read" or "delivered" receipt for their mails.
The script send mails on behalve of an specific... (1 Reply)
In this post, Perderabo's script says
echo 05/06/25 14:15:56 | IFS=" /:" read Y1 M1 D1 h1 m1 s1
which, if I am not wrong, will break the input into Y1, M1 et al.
I tried the following in my code
#! /bin/ksh
# per.sh
typeset -R2 HOUR=00
typeset -R2 MIN=00
typeset -R2 SEC=00
... (2 Replies)
Hallo,
i need a Prompting read in my script:
read -p "Enter your command: " command
But i always get this Error:
-p: is not an identifier
When I run these in c-shell i get this error
/usr/bin/read: read: bad option(s)
How can I use a Prompt in the read command? (9 Replies)
I have to read a file line by line, change it and then update the file. Problem is, when i read the file, "read" command ignores leading spaces.
The file is a script which is indented in many places for clarity. How to i make "read" command read leading spaces as well. (3 Replies)
Hi All
I have a migration program that creates directories based on dates, e.g 20090714 20090812 etc.. Based on their requirements, the user will select the directory they want to perform an action on.
Currently, this is a snippet of the code I use
no_of_versions=`ls | wc -l`
if... (2 Replies)
This script is supposed to display a file ( crontab ), ask the user if they wish to update the file, then it goes through an update routine.
#!/bin/bash
FILE=/etc/crontab
tail -5 $FILE
echo -n "Does crontab need updating"
read HOURS
...routines ....etc...
Runs locally... (8 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
The "read" command, which is built into bash, takes words from the standard input. However, "read" is not good at taking file names if the file names contain spaces. I would like my bash script to ask the user to enter file names, which may contain spaces. Can you think about any technique for... (14 Replies)
I want to print any matching IP addresse in List1 with List 2;
List 1
List of IP addresses;
161.85.58.210
250.57.15.129
217.23.162.249
74.76.129.101
30.221.177.237
3.147.200.59
170.58.142.64
127.65.109.33
150.167.242.146
223.3.20.186
25.181.180.99
2.55.199.32 (3 Replies)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies
LEARN ABOUT OSF1
tee
tee(1) General Commands Manual tee(1)NAME
tee - Displays the output of a program and copies it into a file
SYNOPSIS
tee [-ai] file...
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
tee: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
Adds the output to the end of file instead of writing over it. Ignores the SIGINT signal.
OPERANDS
Standard input is stored into, or appended to, the file specified.
[Tru64 UNIX] The tee command can accept up to 20 file arguments.
DESCRIPTION
The tee command reads standard input and writes to both standard output, and each specified file.
The tee command is useful when you wish to view program output as it is displayed, and also want to save it in a file. The tee command does
not buffer output, so you may wish to pipe the output of tee to more if more than one full screen of data is anticipated.
NOTES
If a write to any file fails, the exit status of tee will be non-zero. Writes to all other specified files may be successful, and opera-
tion will continue until standard input is exhausted.
EXIT STATUS
The following exit values are returned: Successful completion. An error occurred.
EXAMPLES
To view and save the output from a command at the same time, enter: lint program.c | tee program.lint
This displays the standard output of the command lint program.c at the terminal, and at the same time saves a copy of it in the file
program.lint. If program.lint already exists, it is deleted and replaced. To display and append to a file, enter: lint program.c |
tee -a program.lint
This displays the standard output of lint program.c at the terminal and at the same time appends a copy of it to the end of pro-
gram.lint. If the file program.lint does not exist, it is created.
ENVIRONMENT VARIABLES
The following environment variables affect the execution of tee: Provides a default value for the internationalization variables that are
unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari-
ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value,
overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes
of text data as characters (for example, single-byte as opposed to multibyte characters in arguments). Determines the locale for the for-
mat and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the processing of
LC_MESSAGES.
SEE ALSO
Commands: cat(1), echo(1), script(1)
Standards: standards(5)tee(1)