How to execute a command on each line of output from another command?
Hello
new to bash not to programming.
I have an on-going need to change the owning group on sets of files and directories from the one they were created with or changed to on update to the one they need to have going forward.
Code:
find {target_root} -group wrong_group
gets me a newline delimited list of files that associate with the wrong group
Code:
chgrp correct_group {file}
makes the correct change to an arbitrary file
I need the way execute the latter command on each line of output from the former command?
Hi,
I've would like to create kill statement from sqlplus output.
So, I've modified somoene's script :
mud_kill_stmt=`sqlplus -s / as sysdba <<EOF
select 'kill -9 ' || p.SPID || ';' statement from $process_view p, $session_ ......... and so on
exit;
EOF`
$mud_kill_stmt | tr ... (1 Reply)
Net::SSH::Perl ...... how to print the output in a proper format
my $cmd = "ls -l";
my $ssh = Net::SSH::Perl->new($host);
$ssh->login($user, $pass);
my($stdout, $stderr, $exit) = $ssh->cmd("$cmd");
print $stdout;
the script works fine, but i am unable to see the output... (2 Replies)
Hi,
I am using solaris 10 and bash shell.Script execution follows below.Initially it will check whether a directory exists or not if does not exist it will create it.(This I have completed)
Second step:I have four users say user1,user2,user3,user4.Script should prompt for the user id and... (11 Replies)
Sed command to replace a line in a file using line number from the output of a pipe.
Is it possible to replace a whole line piped from someother command into a file at paritcular line...
here is some basic execution flow..
the line number is 412
lineNo=412
Now i have a line... (1 Reply)
Hi ALL,
I have a requirement like this.
1.GET ALL TABLE NAME (just table name) keep in file
2.Read line by line and get the count of table from tablename files.
tablename detail has a sql statement "db2 select tabname from syscat.tables" (1 Reply)
Hello ,
I am trying to run a NetBackup command in remote server. Also this command can only be run by root so I am using sudo . Also I want the output of the command locally in a file.
The below command asked for password , ran successfully and showed Output on my local server screen
... (2 Replies)
I have a simple task to replace unix line feed end of line characters with carriage returns.
When I run the following “change file in place” sed instruction from the command line all the Line feeds are successfully replaced with Carriage returns.
sed -i 's/$/\r/' lf_file.txt
But that same... (1 Reply)
I need to modify a bash script to to take each line in a file and execute command. I currently have this:
#!/bin/bash if ; then echo "Lipsa IP"; exit; fi i=1 ip=$1 while ; do if ; then rand=`head -$i pass_file | tail -1` user=`echo $rand | awk '{print $1}'` pass=`echo $rand | awk '{print $2}'`... (3 Replies)
Hello Forum,
I'm looking to expand the following command:
INACTIVE_KERNELS=$(python -mplatform | grep -qi red && rpm -qa | grep '^kernel-' |grep -vE `uname -r` | paste -sd \; || echo "Not Red Hat Server")
Currently this command will check if my server is RedHat server using the grep -qi... (6 Replies)
The following is a multi-line shell command example:
$cargo build
Compiling prawn v0.1.0 (/Users/ag/rust/prawn)
error: failed to resolve: could not find `setup_panix` in `human_panic`
--> src/main.rs:14:22
|
14 | human_panic::setup_panix!();
| ... (2 Replies)
Discussion started by: yogi
2 Replies
LEARN ABOUT OSX
chgrp
CHGRP(1) BSD General Commands Manual CHGRP(1)NAME
chgrp -- change group
SYNOPSIS
chgrp [-fhv] [-R [-H | -L | -P]] group file ...
DESCRIPTION
The chgrp utility sets the group ID of the file named by each file operand to the group ID specified by the group operand.
The following options are available:
-f The force option ignores errors, except for usage errors and doesn't query about strange modes (unless the user does not have proper
permissions).
-H If the -R option is specified, symbolic links on the command line are followed. (Symbolic links encountered in the tree traversal
are not followed).
-h If the file is a symbolic link, the group ID of the link itself is changed rather than the file that is pointed to.
-L If the -R option is specified, all symbolic links are followed.
-P If the -R option is specified, no symbolic links are followed. This is the default. Use -h to change the group ID of a symbolic
link.
-R Change the group ID for the file hierarchies rooted in the files instead of just the files themselves.
-v Cause chgrp to be verbose, showing files as the group is modified.
The -H, -L and -P options are ignored unless the -R option is specified. In addition, these options override each other and the command's
actions are determined by the last one specified.
The group operand can be either a group name from the group database, or a numeric group ID. If a group name is also a numeric group ID, the
operand is used as a group name.
The user invoking chgrp must belong to the specified group and be the owner of the file, or be the super-user.
DIAGNOSTICS
The chgrp utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
In previous versions of this system, symbolic links did not have groups.
The -v option is non-standard and its use in scripts is not recommended.
FILES
/etc/group group ID file
SEE ALSO chown(2), fts(3), group(5), passwd(5), symlink(7), chown(8)STANDARDS
The chgrp utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD March 31, 1994 BSD
02-10-2016
