1. Shell Programming and Scripting

I'd like to grep a pattern of a version number as *_number.number.number number should be digit my grep is |egrep '^*++\.+' It works for V_3.2.1 or V _5.3.2 but not with V_43.6.543 !!!!! How can I specify any repetition of digit in the ? thanks, (4 Replies)

2. UNIX for Dummies Questions & Answers

Hi, Can I know the usage of fgrep -f command in kshell. Reqirement: Need to search for list of patterns in list of files and display all the files which are having atleast one in the patterns list. I hope fgrep -f will serve this purpose within a loop. But I am not successfull in doing this.... (0 Replies)

3. UNIX Desktop Questions & Answers

Hi All, Can anyone please explain me the difference between grep, egrep and fgrep with examples. I am new to unix environment.. Your help is highly appreciated. Regards, ravi (2 Replies)

4. Shell Programming and Scripting

Hi All, I am using egrep command to search one pattern. Following is the command i am using egrep -i "ACL*" filename but its also giving me the records which do not contain ACL. any help would be appreciated. Regards, Sam (3 Replies)

5. Shell Programming and Scripting

How can we use fgrep command to search pattern on perticular field on a file. eg : I have a parren file having format cat patternfile SPA16S199982 SPA5S26330 I want to seach these pattern on FIRST field of File2(since other field has same data) and that too maching entirely. ... (10 Replies)

6. Shell Programming and Scripting

All, I have a problem with grep/fgrep/egrep. Basically I am building a 200 times 200 correlation matrix. The entries of this matrix need to be retrieved from another very large matrix (~100G). I tried to use the grep/fgrep/egrep to locate each entry and put them into one file. It looks very... (1 Reply)

7. Shell Programming and Scripting

Hi, i am using fgrep command with following syntax fgrep -v -f pattern_file_name file file contains few line and have the pattern which i am giving in pattern file. My Problem is : its is not giving any output. while i am using fgrep -f pattern_file_name file it is showing all... (4 Replies)

8. Shell Programming and Scripting

cat /tmp/inventory.csv|grep AARP|egrep -v "T11|12.4\(7\)" how do i exclude in addition to above 12.4\(3\) I have tried adding this in i.e -v "T11|12.4\(7\)|12.4\(3\)" but it did not work (3 Replies)

9. Shell Programming and Scripting

Hello folks, Here's how my current egrep command works: egrep "NY|DC|LA|VA|MD" state_data.txt I am planning to use a file to enter all allowable state values like say a new state_names.lookup with the following data: NY DC LA VA MD egrep "`cat state_names.lookup`"... (6 Replies)

10. Shell Programming and Scripting

Hi, I am novice in PERL enviornment. I have a text files withso many entries in rows and columns. I have to pick up entries named as "Uniprot ID" in the file and create a new text file with list of particular Uniprot ID entries. Can anybody guide regarding this.. I came to know abut fgrep... (1 Reply)