hi, all,
i saw a syntax like this
usr/local/mpiexec -np 8 /home/XXXX/program_exe >& ./temp/out
the output will be put into ./temp/out.
I want to know the meaning of the operation symbol '>&'.
Thanks (3 Replies)
I have a txt file with several columns and i want to peform an operation on two columns and output it to a new txt file .
file.txt
900.00000 1 1 1
500.00000
500.00000
100000.000
4
4
1.45257346E-07 899.10834 ... (4 Replies)
I use this simple command
result=$(echo "7 / 9" |bc -l)
echo $result
.77777777777777777777
.... but I like to get
0.7777777777777777777
How can I do in order to get also the 0 ?
How to use code tags when posting data and code samples. (3 Replies)
I want to perform the below division operation in shell script and round the value.
val1=6000
val2=5000
res=val1/val2 ----> 1.2---> Round to 2
Please help. (3 Replies)
I'm new to scripts, i wrote the below script to capture the percentage of FreeMemory available in Linux box. Output of UsedfreeMemory is displayed as '0'.
I'm expecting the output like 0.89 (or) .89 --- ( 0.89 perferable)
Anyone can help me on this pls.
... (3 Replies)
Hi All,
I want to display the distinct values in the file and for each distinct value how may occurance or there.
Test data:
test1.dat
20121105
20121105
20121105
20121105
20121106
20121106
20121106
20121105
I need to display the output like
Output (2 Replies)
Hi, to everybody
i have a string which Looks like this
FT47;3;1;1;;;1;09.02.2017 21:21:19;2;2
and i would like to change to value on one Position only
e.g. the values on Position 6 should change to 1 nevertheyless which values was there before
AIX 4.3.2.0 and csh
i try... (10 Replies)
Have three files. Any other approach with regards to file concatenation or splitting, etc is appreciated
If column55(billngtype) of file1 contains YMNC or YPBC then pick the value of column13(documentnumber). Now find this documentnumber in column1(Billdoc) of file2 and grep the corresponding... (4 Replies)
Discussion started by: as7951
4 Replies
LEARN ABOUT CENTOS
service
service(8) System Manager's Manual service(8)NAME
service - run a System V init script
SYNOPSIS
service SCRIPT COMMAND [OPTIONS]
service --status-all
service --help | -h | --version
DESCRIPTION
service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working
directory set to /.
The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the
invoked script, service passes COMMAND and OPTIONS it to the init script unmodified. All scripts should support at least the start and
stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start
command.
service --status-all runs all init scripts, in alphabetical order, with the status command.
If the init script file does not exist, the script tries to use legacy actions. If there is no suitable legacy action found and COMMAND is
one of actions specified in LSB Core Specification, input is redirected to the systemctl. Otherwise the command fails with return code 2.
FILES
/etc/init.d
The directory containing System V init scripts.
ENVIRONMENT
LANG, TERM
The only environment variables passed to the init scripts.
SEE ALSO chkconfig(8), ntsysv(8), systemd(1), systemctl(8), systemd.service(5)
Jan 2006 service(8)