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Grep command to search pattern corresponding to input from user

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# 1  
Old 04-03-2017
Grep command to search pattern corresponding to input from user
One more question:
I want to grep "COS_12_TM_4 pattern from a file look likes :
Code:
"COS_12_TM_4" [ 
"dummy_COS_12_1_TM_4",
"dummy_COS_12_2_TM_4",
"dummy_COS_12_3_TM_4",
"dummy_COS_12_4_TM_4",
"dummy_COS_12_5_TM_4",
"dummy_COS_12_6_TM_4",
"dummy_COS_12_7_TM_4",
"dummy_COS_12_8_TM_4",
"dummy_COS_12_9_TM_4",
"dummy_COS_12_10_TM_4",
"dummy_COS_12_11_TM_4",
"dummy_COS_12_12_TM_4",
"dummy_COS_12_13_TM_4",
"dummy_COS_12_14_TM_4",
"dummy_COS_12_15_TM_4",
"dummy_COS_12_16_TM_4",
"dummy_COS_12_17_TM_4",
"dummy_COS_12_18_TM_4",
"dummy_COS_12_19_TM_4",
"dummy_COS_12_20_TM_4",
"dummy_COS_12_21_TM_4",
"dummy_COS_12_22_TM_4",
"dummy_COS_12_23_TM_4",
"dummy_COS_12_24_TM_4",
"dummy_COS_12_25_TM_4",
"dummy_COS_12_26_TM_4",
"dummy_COS_12_27_TM_4",
"dummy_COS_12_28_TM_4",
"dummy_COS_12_29_TM_4",
"dummy_COS_12_30_TM_4",
"dummy_COS_12_31_TM_4",
"dummy_COS_12_32_TM_4",
"dummy_COS_12_33_TM_4",
"dummy_COS_12_34_TM_4",
"dummy_COS_12_35_TM_4",
"dummy_COS_12_36_TM_4",
"scan_out[5]" ];

I am taking scan_out[5] as the input from the user.
How to search "COS_12_TM_4" in the file which is corresponds to scan_out[5]
Last edited by RudiC; 04-03-2017 at 05:39 AM..
# 2  
Old 04-03-2017
Hello Preeti Chandra,

Kindly use CODE TAGS for your Input_file/commands/codes which you are using into your posts(see example how I am using), if you want to only search for a string then following may help you in same too.
Code:
grep  "COS_12_TM_4"  Input_file

It will only look for above string, if you have more conditions then kindly post them with sample Input_file and expected sample output in CODE TAGS please.

Thanks,
R. Singh
# 3  
Old 04-03-2017
I think the o/p wants to search for "scan_out[5]" and get the matching "COS_12_TM_4".
The following searches for [ outside the "string" and on success stores the line, and it searches for ] outside the "string" and on success tries to find the given string and on success prints the stored line.
Code:
awk '{x=$0; sub(/".*"/,"",x)} (index(x,"[")) {sn=$0} (index(x,"]") && index($0,search)) {print sn}' search='scan_out[5]' file

# 4  
Old 04-03-2017
this command output is -
Code:
    "scan_out[5]" : output;      ## pinName = scan_out[5];  tf =  SO  ; 
    "COS_12_TM_4" [ 
    "scan_out[5]" := output [ 0ns:X, 50.000000ns:Q, 100.000000ns:X ];

I have other 3 matches of scan_out in my input file.
Can you explain the command
Code:
awk '{x=$0; sub(/".*"/,"",x)} (index(x,"[")) {sn=$0} (index(x,"]") && index($0,search)) {print sn}' search='scan_out[5]' file

.

what exactly it is doing?
# 5  
Old 04-03-2017
That specification is by no means clear. Please elaborate
- do you want to match "COS_12_TM_4 or "COS_12_TM_4"?
- do you want to match that single line only, or the entire record?
- how would a record be defined?
- how does scan_out[5] come into play, with or without double quotes?

Does your input data sample represent the real data?
Last edited by RudiC; 04-03-2017 at 06:06 AM..
# 6  
Old 04-03-2017
As you see in below post My input file -
Code:
"COS_12_TM_4" [ ......
                                   ...... 
                                 "scan_out[5]" ] ;

What I am trying to do is that ,user will give input to the script i.e.
Code:
scan_out[5]

I want to search the scan_out[5] in my input file and print the corresponding value,in this case value is
Code:
COS_12_TM_4

.
Code:
awk '{x=$0; sub(/".*"/,"",x)} (index(x,"[")) {sn=$0} (index(x,"]") && index($0,search)) {print sn}' search='scan_out[5]' file

This command helping me in grepping the corresponding value but there are other places in input file where scan_out[5] is present.So how to grep only required value?
# 7  
Old 04-03-2017
Hello Preeti Chandra,

As you haven't shown complete sample Input_file so it is not tested completely, could you please try following and let me know if this helps you.
Code:
awk '/ \[/{gsub(/\"/,"",$1);VAL=$1;} /scan_out\[5\]/{print VAL}'  Input_file

EDIT: With MadeInGermany's approach you could do following changes in that code and get it as follows.
Code:
 awk '{x=$0; sub(/".*"/,"",x)} (index(x,"[")) {gsub(/\"/,"",$1);sn=$1} (index(x,"]") && index($0,search)) {print sn}' search='scan_out[5]'   Input_file

Thanks,
R. Singh
Last edited by RavinderSingh13; 04-03-2017 at 06:34 AM..
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