i have done a coding in shell scripting which reads a file line by line and does something....it takes more than 30 seconds to execute for a single file. when i do the same with perl scripting it takes less than a second.
is that shell scripting is not efficient while working with large number of... (1 Reply)
Hi,
I wrote below small script which will add up each row value from a file and print the total, but it is not.plz let me know what is wrong.script hangs and not displaying anything.
-----------------
while read line ; do
sum=0;
sum=$sum+$line;
done
echo $sum;
exit 0;
------------------... (8 Replies)
Hello,
I have a Apache webserver running on RedHat. Its primary function is a proxy server for users accessing the internet. I have a transaction log that logs every transactions of every users. For users trying to access certain sites/content the transactions goes into a 302 redirect loop and... (2 Replies)
Need shell script to read two file at same time and print output in single file
Example I have two files 1) file1.txt 2) file2.txt
File1.txt contains
Aaa
Bbb
Ccc
Ddd
Eee
Fff
File2.txt contains
Zzz
Yyy
Xxx (10 Replies)
Hi,
I need help on doing the below thing in shell script.
I have a file with millions of rows called "abc.txt". i have another file with millions of rows called "xyz.txt".
I would like to do the below operation.
Open the abc.txt, read the first line, do some operations on the column... (2 Replies)
Hello,
I want to make a script to do this :
the file is with line :
TOTO TEST1
TOTO TEST2
TITI TEST1
TITI TEST2
TITI TEST3
i want he become :
TOTO TEST1 TEST2
TITI TEST1 TEST2 TEST3 (3 Replies)
Please advice script for changing from A to B
I'd like to Split a row to multiple rows with 4 columns using shell script.
The data of the file is in one row as below that is 28Mbyte size.
A>
cto10001 0000000 201010 10:52:13 cto10001 0000000 201011 10:52:13 cto10001 0000000 201011 10:52:13... (2 Replies)
Dear experts,
I have an epoch time input file such as : -
1302451209564
1302483698948
1302485231072
1302490805383
1302519244700
1302492787481
1302505299145
1302506557022
1302532112140
1302501033105
1302511536485
1302512669550
I need the epoch time above to be converted into real... (4 Replies)
Hello Everyone,
My issue is that I want to traverse a database table row by row and do some action on the value retrieved in each row.
I have gone through a lot of shell script questions/posts. I could find row by row traversal of a file but not a database table.
Please help.
Thanks &... (5 Replies)
Hi,
I've a csv file seperated by '|' from which I'm trying to remove the excess '|' characters more than the existing fields. My CSV looks like as below.
HRLOAD|Service|AddChange|EN
PERSONID|STATUS|LASTNAME|FIRSTNAME|ITDCLIENTUSERID|ADDRESSLINE1
10000001|ACTIVE|Testazar1|Testore1|20041|||... (24 Replies)
Discussion started by: rajak.net
24 Replies
LEARN ABOUT POSIX
systemd-machine-id-commit.service
SYSTEMD-MACHINE-ID-COMMIT.SERVICE(8) systemd-machine-id-commit.service SYSTEMD-MACHINE-ID-COMMIT.SERVICE(8)NAME
systemd-machine-id-commit.service - Commit a transient machine ID to disk
SYNOPSIS
systemd-machine-id-commit.service
DESCRIPTION
systemd-machine-id-commit.service is an early boot service responsible for committing transient /etc/machine-id files to a writable disk
file system. See machine-id(5) for more information about machine IDs.
This service is started after local-fs.target in case /etc/machine-id is a mount point of its own (usually from a memory file system such
as "tmpfs") and /etc is writable. The service will invoke systemd-machine-id-setup --commit, which writes the current transient machine ID
to disk and unmount the /etc/machine-id file in a race-free manner to ensure that file is always valid and accessible for other processes.
See systemd-machine-id-setup(1) for details.
The main use case of this service are systems where /etc/machine-id is read-only and initially not initialized. In this case, the system
manager will generate a transient machine ID file on a memory file system, and mount it over /etc/machine-id, during the early boot phase.
This service is then invoked in a later boot phase, as soon as /etc has been remounted writable and the ID may thus be committed to disk to
make it permanent.
SEE ALSO systemd(1), systemd-machine-id-setup(1), machine-id(5), systemd-firstboot(1)systemd 237SYSTEMD-MACHINE-ID-COMMIT.SERVICE(8)