10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
version info : Fedora 28 (Kernel version: 4.16.12-300)
shell : bash
Using echo command , if I redirect a text like "Chocolate" to a file , all the contents in the file are overwritten as shown below.
# cat /tmp/someTest
Hello world
One more Hello world
myLine3
# echo... (4 Replies)
Discussion started by: kraljic
4 Replies
2. Shell Programming and Scripting
Hi I want to run two commands in background, i am using below way, but it is not working, i m calling these two commands from one script to another server where below commands are running, in my script ssh is working fine, but command is not going in background, please advise what should i do.
... (10 Replies)
Discussion started by: learnbash
10 Replies
3. Shell Programming and Scripting
Hey im new in this...anything will be helpful...
The user will input the word or phrase .... I want to search the user input in file (by lines) but not all then with this line search on another file ( with the specific line) and show to the user.
Example:
file1.txt
=======
a
aa
aaa... (2 Replies)
Discussion started by: Sundown
2 Replies
4. UNIX for Dummies Questions & Answers
Hello,
well what I'm trying to do is to remove underscores from filenames and leaving empty spaces instead:
arturas@Universe:/windows/Center/training$ ls
big_file failas su shudu
arturas@Universe:/windows/Center/training$ a=big_file
arturas@Universe:/windows/Center/training$ mv $a `echo... (8 Replies)
Discussion started by: arcelivez
8 Replies
5. Shell Programming and Scripting
I need an if code in shell script where it should continue to further commands after succesfully installing the executable file.
i.e. /run installer is continuing but in the middle it executes further commands like "cp /root/user which were given after /run installer.
I want /runinstaller... (16 Replies)
Discussion started by: sriki32
16 Replies
6. Shell Programming and Scripting
Hi,
I am cutting data from a fixed length test file and then writing out a new record using the echo command, the problem I have is how to stop multiple spaces from being written to the output file as a single space.
Example:
cat filea | while read line
do
field1=`echo $line | cut -c1-2`
... (6 Replies)
Discussion started by: dc18
6 Replies
7. Shell Programming and Scripting
Hello
I need to run some sed commands but it involves "/" in the substitute or delete, any ideas how I get round the problem.
Example:
cat file1.txt | sed -e '/</Header>/d' > file2.txt
This errors due to the forward slash before the Header text.
Thanks (3 Replies)
Discussion started by: Dolph
3 Replies
8. Shell Programming and Scripting
So, HostB has a SSH trust via pre-shared keys from HostA.
HostA> ssh HostB hostname
HostB
HostA> ssh HostB echo `hostname`
HostA
HostA> ssh HostB 'echo `hostname`'
`hostname`
HostA> ssh HostB "echo `hostname`"
HostA
HostA> ssh HostB echo $PS1
user@HostA:$PWD
HostA> ssh HostB... (12 Replies)
Discussion started by: Wrathe
12 Replies
9. Shell Programming and Scripting
Hello all!
I have two consoles.I know the PID of these two.Now I want to execute a command in console#1 but from console#2. How can I achieve this?
Anyone can do something for my query?
Click here if you can't understand my query or to know the need for this query. (3 Replies)
Discussion started by: rakabarp
3 Replies
10. Shell Programming and Scripting
Hello,
We have a requirement to disable running shell commands via vi using "!".
Can anybody please suggest how to disable this option.
The requirement arises because we open up a xterm window with a config file in vi mode for the customer to edit. After the customer edits the config... (1 Reply)
Discussion started by: Umesh_Sharoff
1 Replies