1. Shell Programming and Scripting

hello whats the difference between excuting a shell script as a)sh myscript.sh b). ./myscript.sh i noticed that my shell script works fine when i run it as . ./myscript .sh but fails when i run it as sh myscript.sh could anybody explain why. the shell script is very simple ... (9 Replies)

2. Shell Programming and Scripting

Hi, Could you please explain me the below statement -- phrase wise. sed -e :a -e '$q;N;'$cnt',$D;ba' abc.txt > xyz.txt if suppose $cnt contains value: 10 it copies last 9 lines of abc.txt to xyz.txt why it is copying last 9 rather than 10. and also what is ba and $D over there in... (4 Replies)

3. UNIX for Advanced & Expert Users

$ echo a.bc | sed -e "s/\|/\\|/g" |a|.|b|c| $ Is the behavior of the sed statement expected ? Or is this a bug in sed ? OS details Linux 2.6.9-55.0.0.0.2.ELsmp #1 SMP Wed May 2 14:59:56 PDT 2007 i686 i686 i386 GNU/Linux (8 Replies)

4. Shell Programming and Scripting

I've written a small script to replace certain words in all the the files in a directory. #!/bin/sh #Get list of files to be edited file_list=`ls -p` for i in $file_list do echo "Processing $i" alteredi=`echo "$i" | sed -e 's/\//d/'` if then if then #actual altering (2 Replies)

5. Shell Programming and Scripting

Hi, The following command works fine for me, but I could not grasp the logic working behind of sed command, it's obscure to me :( :confused: echo "./20080916/core/audioex.amr" | sed "s%\(\)/%\1_%g" o/p: ./20080916_core_audioex.amr Could anyone please explain to me in detail, that how... (6 Replies)

6. Shell Programming and Scripting

Hi all, I want to do a very simple thing with sed. I want to print out the line number of a disk I have defined in /etc/exports, so I do: It's all good, but here's the problem. When I define md0 in a variable, I get nothing from sed: Why is that? can anybody please help? Thanks (2 Replies)

7. UNIX for Dummies Questions & Answers

can someone please explain the below sed command.. sed 's/\(*|\)\(.*\)/\2\1/' (6 Replies)

8. Shell Programming and Scripting

I suppose that this is not actually a script question, but I noticed this while working on a bash script homework assignment and I have been impressed with the quality of posts here -- so that is why I posted it here. I have this text file named textfile: total 40 -rwxr-xr-x 1 joeblow... (2 Replies)

9. Shell Programming and Scripting

Will someone give me an explanation on how the sed command below works. sed 's/.*//' Thanks! (3 Replies)

10. UNIX for Advanced & Expert Users

I have a log with entries like: out/target/product/imx53_smd/obj/STATIC_LIBRARIES/libwebcore_intermediates/Source/WebCore/bindings/V8HTMLVideoElement.cpp : target thumb C++: libwebcore <=... (8 Replies)