Searching for lines in textfiles Post: 302430383

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1. UNIX for Dummies Questions & Answers

How to replace a string in multiple textfiles?

Hello I'm trying to replace a string in multiple text files using the tcsh shell. For example I've got some files called test1 test2 test3 etc. Each of them contains "Hello World". Now I want to replace each "Hello" with "Howdy" using sed and a foreach loop. I tried the following but it...

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sed searching across lines

hi, i'm making now a bash script, that runs some compiler... i want to take only errors form its output eg: output: bla bla bla ... erros is 1324546 the bla bla bla bla bla bla... ... and i want to get only erros is 1324546 the bla bla bla

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Removing uppercase words from textfiles

I have the task of removing all uppercase words from csv files, mit 10000's lines. I think it shoud be possible with regex's, something like "s/{2,}//g" but I can't get it work with sed or Vi. It would also be possible to script in ksh, awk, perl or python. example this "this is a EXAMPLE...

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lines searching >>

hi guys! I`ll really appreciate your help. The situation is: i have a log file, and i need to get the needed lines from it. linecount=$(cat -n http.log | grep ALERT | awk '{print $1}' | wc -l) lines=$(cat -n http.log | grep ALERT | awk '{print $1}') 1-string gets the number of found lines...

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Searching for lines ending with }

I'm trying to search for lines ending with "}" with the following command but am not getting any output. grep '\}$' myFile.txt I actually want to negate this (i.e. lines not ending with "}"), but I guess that should be easier once I find the command that finds it?

6. UNIX for Dummies Questions & Answers

Searching for lines in a file?

What is the best way to display lines in a log file that begin with a certain string? Preferably I would like to 'print' them to a file. I guess I would use 'cat' for that? There are two types of line I would like to get at - each begins with a different two words. It would be something...

7. Shell Programming and Scripting

Perl searching special words in lines

Hi , i am a new with perl, i want to made a script that find in file rows that start with specil words, as an example a line will start with" ............................................. specialword aaa=2 bbb=5 ............................................. and to put this in a new file...

8. Shell Programming and Scripting

Searching inverted lines

Hi fellas, I have a file like this: A_B B_D C_D D_B E_F G_H B_A F_E In other words, I have member1_member2 and member2_member1 in the same file. In the exemple aforementioned I have A_B and B_A, B_D and D_B, E_F and F_E. So, I would like to know a sript that print the lines B_A, D_B...

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Add lines after searching for a pattern

Hi, I have 2 files like below. File A: apple mango File B: start abc def apple ghi end start cba fed

10. Shell Programming and Scripting

Searching for pattern and remove the lines

Hi , I want to remove the specific pattern and remove those lines from file using shell script. i want to remove these lines <?xml version='1.0' encoding='UTF-8'?> <row_set> </row_set> my input file has content like this. file name: sample.xml <?xml version='1.0'...

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to replace a string in multiple textfiles?

Discussion started by: dwidmer

2. Shell Programming and Scripting

sed searching across lines

Discussion started by: miechu

3. Shell Programming and Scripting

Removing uppercase words from textfiles

Discussion started by: frieling

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lines searching >>

Discussion started by: neverhood

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Searching for lines ending with }

Discussion started by: BootComp

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Searching for lines in a file?

Discussion started by: Sepia

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Perl searching special words in lines

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Searching inverted lines

Discussion started by: valente

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Add lines after searching for a pattern

Discussion started by: jayadanabalan

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Searching for pattern and remove the lines

Discussion started by: nukala_2