58
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30
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How do I test if a variable is a number in Bash?
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56
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7
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When do we need curly braces around shell variables?
In shell scripts, when do we use {} when expanding variables? For example, I have seen the following: var=10
56
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12
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848
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How to 'grep' a continuous stream?
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54
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22
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Given a filename in the form someletters_12345_moreleters.ext, I want to extract the 5 digits and put them int
62
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22
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748
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Use grep --exclude/--include syntax to not grep through certain files
I'm looking for the string foo= in text files in a directory tree. It's on a common Linux machine, I
56
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10
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How do I pause my shell script for a second before continuing?
I have only found how to wait for user input. However, I only want to pause so that my while true doesn't
59
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17
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Add line break to 'git commit -m' from the command line
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54
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16
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790
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Count number of lines in a git repository
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57
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8
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What does set -e mean in a bash script?
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56
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18
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How to call one shell script from another shell script?
I have two shell scripts, a.sh and b.sh. How can I call b.sh from within the shell script a.sh?
66
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9
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Assigning default values to shell variables with a single command in bash
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54
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28
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Shell command to tar directory excluding certain files/folders
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58
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21
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Get current directory name (without full path) in a Bash script
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53
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30
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Shell command to sum integers, one per line?
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62
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11
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How do I put an already-running process under nohup?
I have a process that is already running for a long time and don't want to end it. How do I put it under
54
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12
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Should I put #! (shebang) in Python scripts, and what form should it take?
Should I put the shebang in my Python scripts? In what form? #!/usr/bin/env python or #!/usr/local/bin/py
57
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10
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Replace one substring for another string in shell script
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61
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14
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307
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How to echo shell commands as they are executed
In a shell script, how do I echo all shell commands called and expand any variable names? For example, given
48
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14
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Defining a variable with or without export
What is export for? What is the difference between: export name=value and name=value
61
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14
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782
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How to reload .bash_profile from the command line?
How can I reload .bash_profile from the command line? I can get the shell to recognize changes to .bas
