How do I write a loop command to periodically check a given folder and then create a djvu file from any pdf it finds.pdf2djvu works great but I'm looking to set up a "hot folder" for general office staff to use.
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I am having trouble getting the while loop to execute in the ssh command:ssh $USERID@serverX "while read line do echo $line done<$list_dir/cost_feed.lst.old"Error:bash: -c: line 1: syntax error: unexpected end of fileI have managed to use simpler commands with ssh like:ssh $USERID@serverX "pwd; cp x y"I expect that I need to add some combination of escape characters or semicolons
View 3 Replies View RelatedI am posting this just for the sake of curiosity. I am trying to feed a while loop structure with a command output, but using the bash built-in I get the error "ambiguous redirect":
Code:
while read line
do
[code]....
how to write a command (for loop) that would ping a Class C subnet to make it so that it only replies once and does not show the statistics?
View 2 Replies View RelatedWhen running a program that has infinite loops in the terminal , how to bring back the command prompt ? ( I'm using Fedora core 5 )
View 7 Replies View Relatedhow do you write the ASCII character #27 in the vim command line?
View 6 Replies View RelatedI have a mytext file with month and year as two separate fields. likemytext fil
08 2010
09 2010
10 2010
........
........
........
I want to read the values of each field i.e., month and year into an awk script.
for some commands such as apt-get install xxx, I forget to add sudo first, then I need to retype it. What I want is in such cases, I just type a simple command, for example resudo. It will sudo my last command sudo apt-get install xxx. Is it possible in bash?
View 1 Replies View RelatedHow do you write a command to set the /bin/tetris file executable
View 2 Replies View RelatedWhen I log on a root and attempt to issue the command Freshclam to upgrade the virus definitions it attempts or create a new file with a definition name. I get a message stating that the directory isnt writable. The user and group access rights are as follows:
USER = read, write, execute
Group = read, write, execute
All= read, execute.
The only way I can get around this is by applying a 777 which would be read, write and execute for all. Now, I have a group define with several user ids in it including Root.How do I connect the group with the directory/file so I dont have to apply a 777 access right to group users could issue the Freshclam command.
what does desktop manager do? What does $ do? what is loop for in command line? What is the best way to switch user? Using command line?
View 7 Replies View RelatedHow can I port standard out from ls or any other command into a while loop?
Code:
while read line
do
[code]....
How can i write a shell script that takes a file path as command-line arguments.and it should report whether the path denotes a file or a directory.
View 2 Replies View RelatedI have written the following script in my linux server to add users for LDAP database.But i can't able to run this.
The script is as following
#!/bin/bash
echo "Mention the username which you want to convert LDIF format"
read username
if ["$username" -e "/ldiffile/passwd"]; then
echo "Username already exists"
else
cat /etc/passwd | grep -i "$username" >> /ldiffile/passwd
fi
The output which i got :
. ldapadd.sh
Mention the username which you want to convert LDIF format
yal2361
-bash: [yal2361: command not found
please let me know where need to change and what
I create a bash script that writes another bash file. But in the generated bash file I want to write a bash command in the file and not executing it.Here's my bash file:
Code:
#!/bin/bash
cat > ~/generateGridmix2data.sh << END
[code]...
I want to write a shell script which will simultaneously collect OS user information and write in an individual text files.Can anyone tell me the syntax of the script.N.B. The user name will be mentioned in an array within the shell script.
View 8 Replies View RelatedWill Brasero do DVDs? Or if it doesn't, what's the growisofs commands to write a DVD?
View 2 Replies View RelatedI want to write a bash script that will launch a command when ever I plug my phone in. how would I monitor the port in a script.
View 2 Replies View RelatedI've been looking for how to set this up in bash with no luck so far. I can change what file the history log is written to, and how much history is saved. But it only writes the saved part when bash exits. Instead, I'd like to have bash write that file continuously as each command is entered (and maybe also do an fsync(2) to flush it to disk). That way I can see the command I crashed the box with Anyone know the magical incantation for that?
But there appears to be nothing that I can find there, in the man page, or other searches, that suggest it even can do continuous.
The write command just isn't working for me at all. Am I right in thinking it can even do this function? I am using:
Code:
write paul@paul-laptop pts/0
It keeps telling me
write: paul is not logged in on pts/0
i am trying to write scripts to pass 2 different variables to find command.
find . -name $var1 -exec grep -H $var2
find . -name CDR_2010-07-21 -exec grep -H 9892614477 {} ;
1st variable CDR_2010-07-21(passed by var1) is the file name inside which i am trying to search string 9892614477(passed by var2). i have tried following script
[code]...
If say, I want to read the input given by user at the command prompt and write a code to execute the cmd given then which commands do i use to implement this ( Im writing the code in C )?
View 8 Replies View RelatedThis is the following exercise:Adapt this to write a script storedList that takes two command line parameters. The first parameter is the name of a directory, the second parameter is the name of a directory should be store i.e# ./storeList.sh /etc etcFilesListHow can you refer to the variables that represent the words passed in on the command line?
My Script's file:
#!/bin/bash
if test $# == 2
[code]...
I am trying to figure something out as part of something else I am going to do. I was just wondering the easiest and quickest way to run a loop at the Linux command line which will make x amount of symbolic links when I need them.
I am using Debian 5.
I figure its something as easy as ~# foreach statement, then I just do a loop with the command to make a sym link.
I'm trying to write a bash script program in the Linux command terminal that will write to a fellow user and then continue reading down the program. this is what i have (kind of explains the idea too):
#!/bin/sh
clear
echo "this is before the write command"
write jcummins
this message should go to jerry
echo "the message didn't send and this string will not appear"
echo "it appears it has stopped at the write command"
./test.sh: line 3: syntax error near unexpected token `cd'
./test.sh: line 3: `cd $f'
--------------------------------
[code]....
I have a requirement to check the following conditions..If my folders are not A and B then list files in the directory else no listing the filesso my if loop is some thing like this.
Code:
if [ $dirName = "C" && $dirName != "A" && != "B" ] then
ls -la
[code]....
I have bash 4.0. I used the following for loop example, but all it outputs is "{1..10} instead of the actual numbers one through ten. why?
Code:
for a in {1..10}
do
echo -n "$a "
done
I have a server hosting 100+ websites. I need to quickly identify which websites are configured with a database. There are way too many to manually check every website for a PHP file with a database name. So, I created a list of all databases from MySQL and put them in a text file. I then exported the text file to a shell variable and used it in a for loop.
bash variable
Code:
DBLIST=`cat dblist.txt`
Example of $DBLIST
Code:
db1 db_testing2 database_clientname production words4cheap
for loop
Code:
for db in $DBLIST; do find . -type "f" -iname "*.php" -exec grep -i $db '{}' ; -print; done
Note: my find statement starts searching at . which is the directory that contains all of my websites and their data, each website is setup in a sub directory, identified by it's domain name.
Example: I'm in /var/www. Beneath /var/www are a list of directories:
[URL]
However, this is taking too long (it's been running most of the day) and I was wondering if there wasn't an easier way to accomplish what I'm trying to achieve?
i have tried a lot to add floating values in while loop using bc, but no sucess!!!
script is :
read a1
read a11
[code]....
