|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Treat Command Output as a File
Post 302919383 by aimy on Wednesday 1st of October 2014 12:00:25 AM
10-01-2014
Quote:
What OS are you on, does your system have /dev/fd/?
If so, you could consider using bash or ksh shells. Basically if the <(command) works your system supports it.
This is not very portable and is typically avoided because of this. However if you know your only going to run the script on known platform(s).
If so, you could consider using bash or ksh shells. Basically if the <(command) works your system supports it.
This is not very portable and is typically avoided because of this. However if you know your only going to run the script on known platform(s).
Code:
$ cd /dev/fd/ sh: /dev/fd/: not found. $ uname -a HP-UX system1 B.11.31 U ia64 0189138652 unlimited-user license $ echo $SHELL /sbin/sh $
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is there anyway to get awk to treat multiple delimiters as one? Particularly spaces... (6 Replies)
Discussion started by: peter.herlihy
6 Replies
2. UNIX for Dummies Questions & Answers
How would I echo the same results to two files? One is a running log, and the other is a cache, or sort.
echo "Hello World" >> /Logs/File1 & /tmp/file2
I would just copy it from one place to the other, but the Log keeps history, where I want the /tmp to hold only stuff per session. I tried... (2 Replies)
Discussion started by: TheCrunge
2 Replies
3. UNIX for Dummies Questions & Answers
Hi folks,
Please advise which command/command line shall I run;
1) to display the command and its output on console
2) simultaneous to save the command and its output on a file
I tried tee command as follows;
$ ps aux | grep mysql | tee /path/to/output.txt
It displayed the... (7 Replies)
Discussion started by: satimis
7 Replies
4. Shell Programming and Scripting
Hi
We are having a requirement where one shell script, say a.sh (which uses Java and connects to Oracle database using JDBC) keeps on running everytime. I created a wrapper (to check whether a.sh is running and if not then to start it) and scheduled it in the crontab. Now all the output from... (3 Replies)
Discussion started by: ankitgoel
3 Replies
5. UNIX for Dummies Questions & Answers
Hi
I am trying to get the output of ls into a file with names seaparated with comma and no spaces.
Here is the content of my dir:
ls
file1 file2 file3 file4this is what I tried:
ls -m > list.txtthe file 'list.txt' looks like:
file1, file2, file3, file4, list.txtI... (25 Replies)
Discussion started by: jdhahbi
25 Replies
6. Shell Programming and Scripting
Dear Master.
Help me to command to out put.
Ex log.
"<?xml version=""1.0"" encoding=""UTF-10"" ?><anova-test-bom>
<txid>17251032659</txid>
<authentication>
<user>admin</user>
<password>Amrduoi</password>
</authentication>
<destination>
<msisdn>1111111</msisdn>
... (2 Replies)
Discussion started by: ooilinlove
2 Replies
7. Shell Programming and Scripting
hi ,
i am using iostat -nmzx 1 | awk '{ print $4 }' command to get the i/o rates of disks.
but i want command output in a file , how can i capture , this is some what difficult because command output is keep on changing , any way i have to get total output of the command .
please help me .... (1 Reply)
Discussion started by: shankr3
1 Replies
8. Shell Programming and Scripting
Hi,
I could use some help with a program that examines a log file.
It should output the duration of the steps in minutes.
My problem is that there is no end of a step given, only the begin of a next step.
Actually the problem is that this line comes 3 times, but marks 3 different events:
... (6 Replies)
Discussion started by: ejdv
6 Replies
9. Red Hat
I ran the following command.
cat abc.c > abc.c
I got message the following message from command cat:
cat: abc.c : input file is same as the output file
How the command came to know of the destination file name as the command is sending output to standard file. (3 Replies)
Discussion started by: ravisingh
3 Replies
10. Shell Programming and Scripting
I am using UNIX to create a script on our system. I have setup my commands to append their output to an outage file. However, some of the commands return no output and so I would like something to take their place.
What I need
The following command is placed at the prompt:
TICLI... (4 Replies)
Discussion started by: jbrass
4 Replies
LEARN ABOUT OPENSOLARIS
setusershell
getusershell(3C) Standard C Library Functions getusershell(3C) NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /bin/bash /bin/csh /bin/jsh /bin/ksh /bin/ksh93 /bin/pfcsh /bin/pfksh /bin/pfsh /bin/sh /bin/tcsh /bin/zsh /sbin/jsh /sbin/pfsh /sbin/sh /usr/bin/bash /usr/bin/csh /usr/bin/jsh /usr/bin/ksh /usr/bin/ksh93 /usr/bin/pfcsh /usr/bin/pfksh /usr/bin/pfsh /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/sfw/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. NOTES
Restricted shells should not be listed in /etc/shells. SunOS 5.11 1 Nov 2007 getusershell(3C)