05-15-2007
Great to see... so many tricks on the same issue
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1. Shell Programming and Scripting
Hello,
I am passing a filename to a script to draw parameters from it. However, I want to use part of the filename as a parameter. The filename is transfer_ccf_3731_10.sh but I only need the 3731_10 part of it.
Is this possible? Any help or suggestions would be appreciated!
Regards,
J. (4 Replies)
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2. UNIX for Dummies Questions & Answers
Hi,
I have a 6G log , which is unusual to read and I want to minimize it by removing some part on the upper portion( around 4GB). what should i do? can you please help me?
thanks. (1 Reply)
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3. Shell Programming and Scripting
I want to delete all lines from 1 till a certain line.
how to do that without redirection to another file (tail solution)?
thanx (6 Replies)
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4. Shell Programming and Scripting
Hi All,
I am using trim in my code..
ID_SA_SOURCE="`echo "$data" | cut -c17-34 | tr -s " "`"
ID_SA_DEST="`echo "$data" | cut -c35-52 | tr -s " "`"
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5. Shell Programming and Scripting
Hi all,
I've been looking for how to eliminate blank spaces in a variable or strings. I've seen several ways, using sed, awk and even python. One of them is use 'tr' command, but it does not work as I expected: For example:
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6. Shell Programming and Scripting
1) I want to trim the zeros of the 1st file so they match the second file
2) run an automatic diff and error in lines that dont match
File1
0.8035500
1.4138000
1.6381500
1.9256110
3.8075000
13.3270000
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94.2700000
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File2
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7. Shell Programming and Scripting
Okay, I am trying to make a bash script to get a certain domains IP address (my home ip). My home is on a DHCP lease from my ISP, so I cannot always trust the IP address to remain constant.
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8. Shell Programming and Scripting
Hi All,
I have a file named as
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9. Shell Programming and Scripting
I am trying to trim spaces for the fixed width file starting from location 129 and of length 20.
I am expecting only around 40 records that will have length greater than 9. But i am getting around 4000 records.
Please help me correct the following.
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10. Shell Programming and Scripting
All,
i am comparing the output of one command to a numberic
if ]
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LEARN ABOUT LINUX
pam_issue
PAM_ISSUE(8) Linux-PAM Manual PAM_ISSUE(8)
NAME
pam_issue - PAM module to add issue file to user prompt
SYNOPSIS
pam_issue.so [noesc] [issue=issue-file-name]
DESCRIPTION
pam_issue is a PAM module to prepend an issue file to the username prompt. It also by default parses escape codes in the issue file similar
to some common getty's (using x format).
Recognized escapes:
d
current day
l
name of this tty
m
machine architecture (uname -m)
machine's network node hostname (uname -n)
o
domain name of this system
release number of operating system (uname -r)
current time
s
operating system name (uname -s)
u
number of users currently logged in
U
same as u except it is suffixed with "user" or "users" (eg. "1 user" or "10 users")
v
operating system version and build date (uname -v)
OPTIONS
noesc
Turns off escape code parsing.
issue=issue-file-name
The file to output if not using the default.
MODULE TYPES PROVIDED
Only the auth module type is provided.
RETURN VALUES
PAM_BUF_ERR
Memory buffer error.
PAM_IGNORE
The prompt was already changed.
PAM_SERVICE_ERR
A service module error occurred.
PAM_SUCCESS
The new prompt was set successfully.
EXAMPLES
Add the following line to /etc/pam.d/login to set the user specific issue at login:
auth optional pam_issue.so issue=/etc/issue
SEE ALSO
pam.conf(5), pam.d(5), pam(7)
AUTHOR
pam_issue was written by Ben Collins <bcollins@debian.org>.
Linux-PAM Manual 06/04/2011 PAM_ISSUE(8)