How to print pid of the current shell?

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Which is better perl or shell scripting?

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Is shell scripting a programming language?

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What are environment variables?

2 Answers  

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How to check if the previous command was run successfully?

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How to replace following lines, catch (DAOException e) { objLogger.error(this.getClass () + "addUpdateIssues() " + e); throw new BOException(5122); } catch (BOException e) { objLogger.error(this.getClass () + "addUpdateIssues() " + e); throw e; } catch (Exception e) { objLogger.error(this.getClass () + "addUpdateIssues() " + e); throw new BOException(5122); } Needs to be changed in to, catch (DAOException e) { AppException.handleException (null, null, e, null, null, null, "BOException", this.getClass() + "addUpdateIssues() ", null, null, null, null, null, null, null, null, 5122); } catch (BOException e) { AppException.handleException (null, null, null, e, null, null, "BOException", this.getClass() + "addUpdateIssues() ", null, null, null, null, null, null, null, null, 0); } catch (Exception e) { AppException.handleException (null, null, null, null, null, e, "BOException", this.getClass() + "addUpdateIssues() ", null, null, null, null, null, null, null, null, 5122); }

0 Answers   Wipro,

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In a single command how do you run the previous command in the command prompt.

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How to sort a result of Ls -l command based on columns. Ex. i want to sort 5th column from output of ls -l command.

6 Answers   TCS,

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Hi, I want to practise Unix korn shell scripting which i learnt 2 yr bfr. plz suggest software i can use to practise.

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write a shell script to find the largest number from 3 given numbers.

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write a shell script to emulate the Id command of PRIMOS which lists files and directories. It list files first with a header FILES and then directories with a header DIRECTORIES. This command has several options. The main ones are. -file select files only -dir select directories only -reverse sort in reverse order -no_header put no header on the output -brief output the header only -size display the size of each file -help display Id´s syntax and options.

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How to customise the other shell?

2 Answers   Quest,

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