03-29-2018
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all,
I need your help.
For example I have string in file.txt:
-x -a /tmp/dbarchive_NSS_20081204 -f 900 -l 1 2008/12/04 2008/12/04
So, I need to replace symbols from (for e.g.) position 26 till 33 with symbols which I have in file replace.txt
And I have no idea how to do it.
If... (1 Reply)
Discussion started by: nypreH
1 Replies
2. Shell Programming and Scripting
using sed to replace a specific string on a specific line number using variables
this is where i am at
grep -v WARNING output | grep -v spawn | grep -v Passphrase | grep -v Authentication | grep -v '/sbin/tfadmin netguard -C'| grep -v 'NETWORK>' >> output.clean
grep -n Destination... (2 Replies)
Discussion started by: todd.cutting
2 Replies
3. Shell Programming and Scripting
I am trying to use sed to replace specific characters at a specific position in the file with a different value... can this be done?
Example:
File:
A0199999123
A0199999124
A0199999125
Need to replace 99999 in positions 3-7 with 88888.
Any help is appreciated. (5 Replies)
Discussion started by: programmer22
5 Replies
4. Shell Programming and Scripting
My script is extracting data from SQl session, however sometimes the result contains one or multiple space after/before any numerical value.
e,g .
"123","1 34","1 3 45", "43 5"
How to remove these unwanted spaces..so that I can get the following result :
"123","134",1345","435" (1 Reply)
Discussion started by: mady135
1 Replies
5. Shell Programming and Scripting
I'm drawing a blank on how to use sed to replace selectively based on position in the string (vs nth occurence):
hello.|there.|how.|are.|you.|
I want the period removed in the 3rd item (as defined by the pipe delimiter) if a period is present. So the result in this case would be:
... (2 Replies)
Discussion started by: tiggyboo
2 Replies
6. Shell Programming and Scripting
I asked this before, but my problem got more complicated. Heres what I am trying to do:
I'm trying to replace a string at a certain location with another string.
Heres the file I'm trying to change:
\E
I want to replace the escape code at the 3rd line, 2nd column with this escape code... (3 Replies)
Discussion started by: tinman47
3 Replies
7. Shell Programming and Scripting
I'm trying to update a text file via sed/awk, after a lot of searching I still can't find a code snippet that I can get to work.
Brief overview:
I have user input a line to a variable, I then find a specific value in this line 10th field in this case. After asking for new input and doing some... (14 Replies)
Discussion started by: crownedzero
14 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I would like to use sed to replace NA to x ('s/NA/x/g'), but only in the 5th column of the space delimited text file, nowhere else. How do I go about doing that? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies
9. Shell Programming and Scripting
I'm try to change a the prohibit to aix for the lines starting with ssh and emagent and rest should be the same. Can anyone please suggest me how to do that using a shell script or sed
passwd account required /usr/lib/security/pam_prohibit
passwd session required ... (13 Replies)
Discussion started by: pjeedu2247
13 Replies
10. Shell Programming and Scripting
Hi,
Im using sed on an AIX machine. I am trying to change the 137-139 characters if they are a ' 36'/'000' to a '036'. The positions that need to be changed are fixed.
the source data that I have is$cat v.txt
4000422985400050462239065593606500000007422985707771046154054910075641MC0318AMWAY... (9 Replies)
Discussion started by: dsid
9 Replies
update(n) Tcl Built-In Commands update(n)
__________________________________________________________________________________________________________________________________________________
NAME
update - Process pending events and idle callbacks
SYNOPSIS
update ?idletasks?
_________________________________________________________________
DESCRIPTION
This command is used to bring the application "up to date" by entering the event loop repeatedly until all pending events (including idle
callbacks) have been processed.
If the idletasks keyword is specified as an argument to the command, then no new events or errors are processed; only idle callbacks are
invoked. This causes operations that are normally deferred, such as display updates and window layout calculations, to be performed imme-
diately.
The update idletasks command is useful in scripts where changes have been made to the application's state and you want those changes to
appear on the display immediately, rather than waiting for the script to complete. Most display updates are performed as idle callbacks,
so update idletasks will cause them to run. However, there are some kinds of updates that only happen in response to events, such as those
triggered by window size changes; these updates will not occur in update idletasks.
The update command with no options is useful in scripts where you are performing a long-running computation but you still want the applica-
tion to respond to events such as user interactions; if you occasionally call update then user input will be processed during the next
call to update.
EXAMPLE
Run computations for about a second and then finish:
set x 1000
set done 0
after 1000 set done 1
while {!$done} {
# A very silly example!
set x [expr {log($x) ** 2.8}]
# Test to see if our time-limit has been hit. This would
# also give a chance for serving network sockets and, if
# the Tk package is loaded, updating a user interface.
update
}
SEE ALSO
after(n), interp(n)
KEYWORDS
event, flush, handler, idle, update
Tcl 7.5 update(n)