I don't know how to ask this clearly, so I'll try my best...
At what point does a shell script stop reading from a file, and begin using the buffered script?
Hopefully, this example will shed some light:
#!/usr/bin/ksh
value=""
until ; do
sleep 10
print "What is your value?"
#print... (5 Replies)
Hi All,
I want to read some number from a file into a variable in C shell as follows.
I know that the syntax in ksh is
read x < file name
I dont know what's the equivalent for this in C Shell
Can some one pls. help me out?
Thanks in advance
raju (2 Replies)
Hello
i have a file in directory which has some values like this
lets assume the file is $p
ttry_rtyy_trree
and i am using a file as an input as ($Y) in a shell once i start the shell it should read the file $p and $Y once those lines are matched in $Y i want to take a copy of that ... (7 Replies)
I have to write a C program using sys call (read, no fread) to read from shell all the parameters, without know how many are them.
I tryed in some ways, but I have no success.
Any Idea?
Can I use read to read from stdin? (1 Reply)
Hallo,
i need a Prompting read in my script:
read -p "Enter your command: " command
But i always get this Error:
-p: is not an identifier
When I run these in c-shell i get this error
/usr/bin/read: read: bad option(s)
How can I use a Prompt in the read command? (9 Replies)
Hello All,
I have a an application written in C and runing on Red Hat Linux.
In my code I have written a command that is fired on the linux shell by using system() function call.
Now I need to read the output of this command in my c program and assign it to a variable.
Can anyone... (1 Reply)
Hi all,
I am using csh to read a line from the terminal. I was told to use $< like the following in the terminal:
set name = $<
then I write a line:
James Bond
then I look at the value of 'name':
echo $name
it is always 'James'.
Although the textbook tells me that $< read a... (2 Replies)
Guys,
I have a requirement like below
my cfg file(sam.cfg) has
path=/u/sample/test/
path=/u/sample1/test1/
path=/u/sample2/test2/
days=10
file=*.log
My script is below,
#!/bin/sh
./u/sample/sam.cfg
while read line
do
find $path -name "$file" -mtime +$days -exec ls -la... (2 Replies)
.... Solved....
..
..
Hello,
I've read couples of similar threads to my question and I strongly believe that I am doing something wrong. What I'm trying to do is to process data with php. It reads data from shell script.
Everything goes well but at the end it does not print what it reads... (0 Replies)
Discussion started by: baris35
0 Replies
LEARN ABOUT LINUX
chsh
CHSH(1) User Commands CHSH(1)NAME
chsh - change login shell
SYNOPSIS
chsh [options] [LOGIN]
DESCRIPTION
The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
the login shell for her own account; the superuser may change the login shell for any account.
OPTIONS
The options which apply to the chsh command are:
-h, --help
Display help message and exit.
-s, --shell SHELL
The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.
If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.
NOTE
The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
back to its original value.
FILES
/etc/passwd
User account information.
/etc/shells
List of valid login shells.
/etc/login.defs
Shadow password suite configuration.
SEE ALSO chfn(1), login.defs(5), passwd(5).
User Commands 06/24/2011 CHSH(1)