10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi guys,
Been messing around with shell programming for a couple of days and I found something that was pretty odd in the behavior of the echo command. Below is an example-:
When I type the following in my /home directory from my lxterminal in Debian-:
echo "`ls -l`"
I get the... (2 Replies)
Discussion started by: sreyan32
2 Replies
2. Shell Programming and Scripting
I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here.
I have following script (called out_to_streams.csh):
#!/bin/tcsh -f
echo Redirected to STDOUT > /dev/stdout
echo Redirected to... (2 Replies)
Discussion started by: marcink
2 Replies
3. UNIX Desktop Questions & Answers
#!/bin/bash
date
echo $_
What does $_ will print? (3 Replies)
Discussion started by: kkalyan
3 Replies
4. Shell Programming and Scripting
echo `echo ` doesn't echoes anything. And it's logic. But
echo `echo `echo ` ` does echoes "echo". What's the logic of it? the `echo `echo ` inside of the whole (first) echo, echoes nothing, so the first echo have to echo nothing but echoes "echo"
(too much echoing :P):o (2 Replies)
Discussion started by: hakermania
2 Replies
5. UNIX for Dummies Questions & Answers
Bit of a weird one i suppose, i want to use an echo inside an echo... For example...
i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos...
echo "echo "hello"" >$file
echo "echo "goodbye"" >$file
... (3 Replies)
Discussion started by: mokachoka
3 Replies
6. Shell Programming and Scripting
So in my shell i execute:
{ while true; do echo string; sleep 1; done } | read line This waits one second and returns.
But
{ while true; do /bin/echo string; sleep 1; done } | read line continues to run, and doesn't stop until i kill it explicitly.
I have tried this in bash as well as zsh,... (2 Replies)
Discussion started by: ulidtko
2 Replies
7. Shell Programming and Scripting
There is an output file which has been generted by Concatenating 4 differnt files.
like four files (a,b,c,d) contains output of different lenght and line number.
Suppose file a contains 10 records and all ten records are of constant varible lenght (let us say 12)
same is the case with rest... (5 Replies)
Discussion started by: jojo123
5 Replies
8. UNIX for Dummies Questions & Answers
Is there a way to get echo to make newlines without using any type of quotes? I've done a lot of searches and went into my Linux book to no avail. I'm trying to write five separate lines to a file. I can get echo to accept all five lines like this
echo \
\this is line 1\
\this is line 2\ >... (6 Replies)
Discussion started by: Trekker182
6 Replies
9. Solaris
Hi anyone know...
ID1=1234
ID2=2345
ID3=3456
count=1
while
do
echo $(ID$count) --> i would like the out put to be 1234
count=$((count + 1))
done
exit 0
if i would like to echo ID1 then it will should 1234567. how should i echo
like this would not works -> echo $(ID$count)
... (7 Replies)
Discussion started by: summerpeh
7 Replies
10. UNIX for Dummies Questions & Answers
I am trying to glue 4 comma separated values files side by side into one. Right now, I'm working based on this:
i="1"
while #files are 425 lines
do
echo `head -$i file1.csv | tail -1`,`head -$i file2.csv | tail -1`,`head -$i file3.csv | tail -1`,`head -$i file4.csv | tail -1` >> finished.csv... (2 Replies)
Discussion started by: saintdesy
2 Replies
