Sponsored Content
Top Forums Shell Programming and Scripting Eval command with space, quote and bracket characters Post 302949385 by Pradnya Gandhe on Friday 10th of July 2015 07:32:18 AM
Old 07-10-2015
Hi Don,
Yes, you are right.
I dont need to use eval if I have a command that runs successfully out of the shell script.
Now I am calling same command within shell script.
I was UN-necessarily wasting my time to make it work with eval. Somehow it got sleep from my mind that we can use the commands withing shell script.

Thanks for point this out. It saved my day.

Thanks and regards,
Pradnya Gandhe
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Multiple characters including single quote in delimiter

Hello, I need to replace the comma to something else between the single quote: 1aaa,bbb,'cc,cc','ddd',1 2aaa,bbb,'ccc','d,d',0 to 1aaa,bbb,'cc<comma>cc','ddd',1 2aaa,bbb,'ccc','d<comma>d',0 Can someone help? Thanks. (2 Replies)
Discussion started by: bgirl
2 Replies

2. Shell Programming and Scripting

Regex in grep to match all lines ending with a double quote (") OR a single quote (')

Hi, I've been trying to write a regex to use in egrep (in a shell script) that'll fetch the names of all the files that match a particular pattern. I expect to match the following line in a file: Name = "abc" The regex I'm using to match the same is: egrep -l '(^) *= *" ** *"$' /PATH_TO_SEARCH... (6 Replies)
Discussion started by: NanJ
6 Replies

3. Shell Programming and Scripting

Processing data that contains space and quote delimiters

I need to write a Bash script to process a data file that is in this format: 1 A B C D E 2 F G "H H" I J As you can see, the data is delimited by a space, but there are also some fields that contain spaces and are surrounded by double-quotes. An example of that is "H H". I wrote... (7 Replies)
Discussion started by: RickS
7 Replies

4. Shell Programming and Scripting

Eval command help

I have file called myfile which has the text "myserver" in it. I need to have a command to ping "myserver". How would I do that? I tried when I type at the terminal I get the output as . How do I do something like a ? thanks, Nick (5 Replies)
Discussion started by: nikhilfake
5 Replies

5. Shell Programming and Scripting

Strange result of eval, how does eval really work with ssh?

Hi all, some small script with eval turned me to crazy. my OS is linux Linux s10-1310 2.6.16.53-0.8.PTF.434477.3.TDC.0-smp #1 SMP Fri Aug 31 06:07:27 PDT 2007 x86_64 x86_64 x86_64 GNU/Linux below script works well #!/bin/bash eval ssh remotehost date eval ssh remotehost ls below... (1 Reply)
Discussion started by: summer_cherry
1 Replies

6. Shell Programming and Scripting

ksh, difference between double bracket and single bracket

Can somebody tell me the difference between double brackets and single brackets, when doing a test. I have always been acustomed to using single brackets and have not encountered any issues to date. Why would somebody use double brackets. Ie if ] vs if Thanks to... (2 Replies)
Discussion started by: BeefStu
2 Replies

7. Shell Programming and Scripting

Error in eval eval command to print html tags

anyone has any info on why this is complaining??? vivek@vivek-c5e55ef2e ~/TAC $ zoneCounter=1 vivek@vivek-c5e55ef2e ~/TAC $ optUsage1=23% vivek@vivek-c5e55ef2e ~/TAC $ eval eval echo "<th>Zone $zoneCounter </th><th align=\"left\"> \$optUsage$zoneCounter </th>" -bash: syntax error... (1 Reply)
Discussion started by: vivek d r
1 Replies

8. Shell Programming and Scripting

Error in eval eval command to print html tags

anyone has any info on why this is complaining??? vivek@vivek-c5e55ef2e ~/TAC $ zoneCounter=1 vivek@vivek-c5e55ef2e ~/TAC $ optUsage1=23% vivek@vivek-c5e55ef2e ~/TAC $ eval eval echo "<th>Zone $zoneCounter </th><th align=\"left\"> \$optUsage$zoneCounter </th>" -bash: syntax error... (13 Replies)
Discussion started by: vivek d r
13 Replies

9. Shell Programming and Scripting

Replacing trailing space with single quote

Platform : RHEL 5.8 I want to end each line of this file with a single quote. $ cat hello.txt blueskies minnie mickey gravity snoopyAt VI editor's command mode, I have used the following command to replace the last character with a single quote. ~ ~ ~ :%s/$/'/gNow, the lines in the... (10 Replies)
Discussion started by: John K
10 Replies

10. Shell Programming and Scripting

Replacing all but the first and last double quote in a line with a single quote with awk

From: 1,2,3,4,5,This is a test 6,7,8,9,0,"This, is a test" 1,9,2,8,3,"This is a ""test""" 4,7,3,1,8,"""" To: 1,2,3,4,5,This is a test 6,7,8,9,0,"This; is a test" 1,9,2,8,3,"This is a ''test''" 4,7,3,1,8,"''"Is there an easy syntax I'm overlooking? There will always be an odd number... (5 Replies)
Discussion started by: Michael Stora
5 Replies
SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-a] [-k] [-q] [-t time] [file [command ...]] DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. If the argument command ... is given, script will run the specified command with an optional argument vector instead of an interactive shell. Options: -a Append the output to file or typescript, retaining the prior contents. -k Log keys sent to program as well as output. -q Run in quiet mode, omit the start and stop status messages. -t time Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The default interval is 30 seconds. The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues. When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual echo logging. This does not work when in a raw mode where the program being run is doing manual echo. BSD
June 6, 1993 BSD
All times are GMT -4. The time now is 02:33 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy