perform echo and awk inside a string Post: 302596673

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to correctly use an echo inside an echo?

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 ...

2. Shell Programming and Scripting

Appending string (charachters inside the line) to a fixed width file using awk or sed

Source File: abcdefghijklmnop01qrstuvwxyz abcdefghijklmnop02qrstuvwxyz abcdefghijklmnop03qrstuvwxyz abcdefghijklmnop04qrstuvwxyz abcdefghijklmnop05qrstuvwxyz Whatever characters are in 17-18 on each line of the file, it should be concatenated to the same line at the character number...

3. UNIX for Dummies Questions & Answers

How to perform string replace in shell script?

I have value like ABCDEF,BBCCDD in a shell variable, now i would like to have ABQWEF,BBQWDD in the same shell variable. How can i replace the char at position 3&4 with QW in shell script?

4. Shell Programming and Scripting

tcsh - understanding difference between "echo string" and "echo string > /dev/stdout"

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...

5. Shell Programming and Scripting

Urgent - Search a string inside awk

I need to search for string which is formed from the awk input file in a file given as input through -v option. I tried using the while (getline filename) and match(). But this approach is consuming lot of time as the input file has thousands of records. Please suggest any alternative. Thanks!

6. Shell Programming and Scripting

Unable to echo single quotes inside awk

# echo 'export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk '{print \$1}')' >> new_file # # cat new_file export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk {print $1}) # Now how to echo the quotes around the...

7. Shell Programming and Scripting

Using echo to print arguments inside a function

I am using echo in bash. Have created a function prargv which takes a number of arguments. Example: prargv "-e" "--examples" Inside prargv, I want to print all the arguments using echo echo "$@" This returns --examples rather than -e --examples" This problem can be fixed...

8. UNIX for Beginners Questions & Answers

String has * as the field delimiter and I need echo/awk to escape it, how?

Hi, I am trying to read an Oracle listener log file line by line and need to separate the lines into several fields. The field delimiter for the line happens to be an asterisk. I have the script below to start with but when running it, the echo command is globbing it to include other...

9. Shell Programming and Scripting

Gnu tool; sed awk echo etc to prepend or append string to a file

Looking to add text to a file, example File example; nodegroups: check-hosts: L@host.domain.com,host2.domain.com,host3.domain.com I need to take a file with a one line list of hosts separated by commas host.domain.com,host2.domain.com,host3.domain.comand prepend the string " ...

10. UNIX for Beginners Questions & Answers

sed inside the awk script to replace a string in the array

The requirement is i need to find an array value matching with pattern {5:{ , replace that with 5: and reassign that to same array index and print it. I write something like below and the issue is sed command is not working. If i replace " with "`" the script gives syntax error.how can i...

LEARN ABOUT DEBIAN

rdma_post_ud_send

RDMA_POST_UD_SEND(3)					   Librdmacm Programmer's Manual				      RDMA_POST_UD_SEND(3)

NAME

       rdma_post_ud_send - post a work request to send a datagram.

SYNOPSIS

       #include <rdma/rdma_verbs.h>

       int  rdma_post_ud_send  (struct	rdma_cm_id *id, void *context, void *addr, size_t length, struct ibv_mr *mr, int flags, struct ibv_ah *ah,
       uint32_t remote_qpn);

ARGUMENTS

       id	   A reference to a communication identifier where the message buffer will be posted.

       context	   User-defined context associated with the request.

       addr	   The address of the memory buffer to post.

       length	   The length of the memory buffer.

       mr	   Optional registered memory region associated with the posted buffer.

       flags	   Optional flags used to control the send operation.

       ah	   An address handle describing the address of the remote node.

       remote_qpn  The number of the destination queue pair.

DESCRIPTION

       Posts a work request to the send queue of the queue pair associated with the rdma_cm_id.  The contents of the posted buffer will be sent to
       the specified destination queue pair.

RETURN VALUE

       Returns 0 on success, or -1 on error.  If an error occurs, errno will be set to indicate the failure reason.

NOTES

       The  user is responsible for ensuring that the destination queue pair has queued a receive request before issuing the send operations.  For
       a list of supported flags, see ibv_post_send.  Unless the send request is using inline data, the message buffer must have  been	registered
       before being posted, with the mr parameter referencing the registration.  The buffer must remain registered until the send completes.

       The  user-defined  context  associated  with  the send request will be returned to the user through the work completion wr_id, work request
       identifier, field.

SEE ALSO

       rdma_cm(7), rdma_connect(3), rdma_accept(3), rdma_reg_msgs(3) ibv_post_send(3), rdma_post_recv(3)

librdmacm							    2010-07-19						      RDMA_POST_UD_SEND(3)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to correctly use an echo inside an echo?

Discussion started by: mokachoka

2. Shell Programming and Scripting

Appending string (charachters inside the line) to a fixed width file using awk or sed

Discussion started by: tamahomekarasu

3. UNIX for Dummies Questions & Answers

How to perform string replace in shell script?

Discussion started by: vel4ever

4. Shell Programming and Scripting

tcsh - understanding difference between "echo string" and "echo string > /dev/stdout"

Discussion started by: marcink