10-05-2018
You have a read command at the start of your script and you have a read command inside your loop. Every read command will wait for you to type in a response.
Try replacing the first read with an echo or printf that gives the directions for the data to be entered and let the read command inside the loop be the only command that blocks waiting for data to be entered.
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greetings,
I have a script that is taking input like this:
a
b
c
d
aa
bb
aaa
bbb
ccc
ddd
and formating it to be like this:
a b c d
aa bb
aaa bbb ccc ddd (4 Replies)
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I'm trying to run the logic below but get a `<' is not matched error message when I return a Y or y;
printf "Run this ? : "
read RESP
case $RESP in
Y|y)
cat <<EOF > file
today is Monday
EOF ;;
N|n)
exit 1 ;;
esac
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i want to get user input like this
please tell which option to chose
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if user chooses mango
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4. Shell Programming and Scripting
i want to get user input like this
please tell which option to chose
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I was trying to write a simple script which will read a text file and count the number of vowels in the file. My code is given below -
#!/bin/bash
file=$1
v=0
if
then
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exit 1
fi
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fi
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I have the following bash script and it is not accepting the lines
"--"|"--""-")
"--""-"")
while
do
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case "$1" in
"--"|"--""-")
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Using BASH:
$ if -- ::00" ]]; then echo "true"; else echo "false"; fi
false
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case "$freq" in
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Hi Gurus,
I have the below BASH code which does not works for upper case alphabets except Z (upper case Z).
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)
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;;
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Hi,
I have a script below that is running ssh <host> <command> on some servers.
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check_log.bash
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#
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RBASH(1) General Commands Manual RBASH(1)
NAME
rbash - restricted bash, see bash(1)
RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO
bash(1)
GNU Bash-4.0 2004 Apr 20 RBASH(1)